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Bowen Niu, Bo Li, Chongyang Wu, Jiang Wu, Yuan Yan, Rui Shang, Chunling Bai, Guangpeng Li, Jinlian Hua
Melatonin has been reported to be an important endogenous hormone for regulating neurogenesis, immunityand the biological clock. Recently, the effects of melatonin on neural stem cells (NSCs), mesenchymal stem cells(MSCs), and induced pluripotent stem cells(iPSCs) have been reported; however, the effects of melatonin on spermatogonia stem cells (SSCs) are not clear. Here, 1μM and 1nM melatonin was added to medium when goat SSCs were cultured in vitro, the results showed that melatonin could increase the formation and size of SSC colonies...
October 18, 2016: Oncotarget
Stephanie H Cook, Robert-Paul Juster, Benjamin J Calebs, Justin Heinze, Alison L Miller
Much of the extant scientific research examining hypothalamic-pituitary-adrenal (HPA)-axis functioning is conducted among White heterosexuals. Very little research examines HPA-axis functioning between different minority groups. Individuals who identify as both sexual and racial minorities may experience increased stigma and discrimination that can affect HPA-axis functioning. In the current study, we examined diurnal cortisol rhythm in young White gay men (WGM) compared to young Black gay men (BGM). The sample consisted of 70 healthy gay men (mean [SD] age=22...
October 13, 2016: Psychoneuroendocrinology
Adrian Meule, Martina de Zwaan, Astrid Müller
BACKGROUND: Impulsivity is a multifaceted construct and constitutes a common risk factor for a range of behaviors associated with poor self-control (e.g., substance use or binge eating). The short form of the Barratt Impulsiveness Scale (BIS-15) measures impulsive behaviors related to attentional (inability to focus attention or concentrate), motor (acting without thinking), and non-planning (lack of future orientation or forethought) impulsivity. Eating-related measures appear to be particularly related to attentional and motor impulsivity and recent findings suggest that interactive effects between these two facets may play a role in eating- and weight-regulation...
October 5, 2016: Comprehensive Psychiatry
Lei Wu, Hua Feng, Jinhua Hu, Xiangguo Tian, Chunqing Zhang
Due to the low cost and favorable safety profile, valproic acid (VPA) has been considered as a potential candidate drug for therapy of various cancers. Our present study revealed that VPA, at the concentration (1mM) which has no effect on cell proliferation, can significantly increase the in vitro migration and invasion of hepatocarcinoma (HCC) HepG2 and Huh7 cells via induction of epithelial mesenchymal transition (EMT). VPA treatment can significantly increase the mRNA and protein expression of Snail, the key transcription factor of EMT...
October 18, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Pang Yao, Liang Sun, Ling Lu, Hong Ding, Xiafei Chen, Lixin Tang, Xinming Xu, Gang Liu, Yao Hu, Yiwei Ma, Feijie Wang, Qianlu Jin, He Zheng, Huiyong Yin, Rong Zeng, Yan Chen, Frank B Hu, Huaixing Li, Xu Lin
CONTEXT: Little is known how genetic and non-genetic factors modify responses of vitamin D supplementation in nonwhite populations. OBJECTIVE: To investigate factors modifying 25-hydroxyvitamin D (25[OH]D) and bioavailable 25(OH)D (25[OH]DBio) responses after vitamin D3 supplementation. Design, Setting, Participants, and Intervention: In this randomized, double-blinded, placebo-controlled trial, 448 Chinese with vitamin D deficiency (25[OH]D<50 nmol/L) received 2000 IU/d vitamin D3 or placebo for 20 weeks...
October 21, 2016: Journal of Clinical Endocrinology and Metabolism
Julia Elisabeth von Oettingen, Tesha Dawn Brathwaite, Christopher Carpenter, Ric Bonnell, Xuemei He, Lewis E Braverman, Elizabeth N Pearce, Philippe Larco, Nancy Charles Larco, Eddy Jean-Baptiste, Rosalind S Brown
CONTEXT: Iodine deficiency is the leading cause of preventable neurodevelopmental delay in children worldwide. It is a possible public health concern in Haiti. OBJECTIVE: To perform a population iodine survey in Haitian young children, and its influence by environmental factors. DESIGN: Cross-sectional study, March-June 2015. SETTING: Community churches in 3 geographical regions in Haiti. PARTICIPANTS: 299 healthy Haitian children aged 9 months to 6 years; 100 enrolled in coastal (C) and mountainous (M) regions, and 99 in an urban region (U)...
October 21, 2016: Journal of Clinical Endocrinology and Metabolism
Deepa Khare, Nobukata Mitsuda, Seungchul Lee, Won-Yong Song, Daehee Hwang, Masaru Ohme-Takagi, Enrico Martinoia, Youngsook Lee, Jae-Ung Hwang
Plants reorganize their root architecture to avoid growth into unfavorable regions of the rhizosphere. In a screen based on chimeric repressor gene-silencing technology, we identified the Arabidopsis thaliana GeBP-LIKE 4 (GPL4) transcription factor as an inhibitor of root growth that is induced rapidly in root tips in response to cadmium (Cd). We tested the hypothesis that GPL4 functions in the root avoidance of Cd by analyzing root proliferation in split medium, in which only half of the medium contained toxic concentrations of Cd...
October 21, 2016: New Phytologist
Michael L Power, Jay Schulkin, Heather Drought, Lauren A Milligan, Katie L Murtough, Robin M Bernstein
In addition to nutrients, milk contains signaling molecules that influence offspring development. Human milk is similar in nutrient composition to that of apes, but appears to differ in other aspects such as immune function. We examine the longitudinal patterns across lactation of macronutrients, the metabolic hormone adiponectin, the growth factors epidermal growth factor (EGF) and transforming growth factor β2 (TGF-β2), and two receptors for these growth factors (EGF-R and TGF-β2-RIII) in milk samples collected between days 175 and 313 postpartum from a Sumatran orangutan (Pongo abelii) and between days 3 and 1,276 from a western lowland gorilla (Gorilla gorilla), and compare the results with human data from the literature...
October 21, 2016: American Journal of Primatology
Ying Wang, Shaoyan Si, Junli Liu, Zongye Wang, Haiying Jia, Kai Feng, Lili Sun, Shu Jun Song
AIMS: Vitamin D deficiency has been associated with some disorders including cardiovascular diseases. Dyslipidemia is a major risk factor for cardiovascular diseases. However, data about the relationships between vitamin D and lipids are inconsistent. The relationship of vitamin D and Atherogenic Index of Plasma (AIP), as an excellent predictor of level of small and dense LDL, has not been reported. The objective of this study was to investigate the effects of vitamin D status on serum lipids in Chinese adults...
2016: PloS One
Mala Ganesan, Sheikh Nizamuddin, Shiva Krishna Katkam, Konda Kumaraswami, Uday Kumar Hosad, Limmy Loret Lobo, Vijay Kumar Kutala, Kumarasamy Thangaraj
BACKGROUND: Coronary artery disease (CAD) is one of the leading causes of mortality worldwide. It is a multi-factorial disease and several studies have demonstrated that the genetic factors play a major role in CAD. Although variations in cholesteryl ester transfer protein (CETP) gene are reported to be associated with CAD, this gene has not been studied in South Indian populations. Hence we evaluated the CETP gene variations in CAD patients of South Indian origin. METHODS: We sequenced all the exons, exon-intron boundaries and UTRs of CETP in 323 CAD patients along with 300 ethnically and age matched controls...
2016: PloS One
Xingkang Jiang, Changwen Zhang, Shiyong Qi, Shanqi Guo, Yue Chen, E Du, Hongtuan Zhang, Xiaoming Wang, Ranlu Liu, Baomin Qiao, Kuo Yang, Zhihong Zhang, Yong Xu
Although we and other studies indicated ZNF217 expression was increased in prostate cancer (PCa), the factors mediating its misregulated expression and their oncogenic activity remain largely unexplored. Recent evidence demonstrated that ferroportin (FPN) reduction lead to decreased iron export and increased intercellular iron that consequently aggravates the oncogenic effects of iron. In the present study, ZNF217 was identified as a transcriptional repressor that inhibits FPN expression. Increased of ZNF217 expression led to decreased FPN concentration, coupled with resultant intracellular iron retention, increased iron-related cellular activities and enhanced tumor cell growth...
October 19, 2016: Oncotarget
Mitsuro Chiba, Kunio Nakane, Yuko Takayama, Kae Sugawara, Hideo Ohno, Hajime Ishii, Satoko Tsuda, Tsuyotoshi Tsuji, Masafumi Komatsu, Takeshi Sugawara
CONTEXT: Plant-based diets (PBDs) are a healthy alternative to westernized diets. A semivegetarian diet, a PBD, has been shown to prevent a relapse in Crohn disease. However, there is no way to measure adherence to PBDs. OBJECTIVE: To develop a simple way of evaluating adherence to a PBD for Japanese patients with inflammatory bowel disease (IBD). DESIGN: PBD scores were assigned according to the frequency of consumption provided on a food-frequency questionnaire, obtained on hospitalization for 159 patients with ulcerative colitis and 70 patients with Crohn disease...
October 14, 2016: Permanente Journal
Damoon Sohrabi Baba Heidary, Clive A Randall
Both Li2CO3-coated nickel particles and fast firing technique were utilized in the manufacturing of MLCCs. They preserved the conductivity of Ni electrodes and provided the possibility of sintering the devices in oxidizing atmospheres. By using our method, the partial pressure of oxygen increase from 10-10 atm in conventional methods to 10-4 atm. The oxidizing atmosphere reduced the oxygen vacancy concentration as illustrated by the color change of the samples, and the results of EELS (electron energy loss spectroscopy)...
October 21, 2016: ACS Applied Materials & Interfaces
Masaki Matsushita, Kenichi Mishima, Ryusaku Esaki, Naoki Ishiguro, Kinji Ohno, Hiroshi Kitoh
OBJECTIVE Achondroplasia (ACH) is the most common short-limbed skeletal dysplasia caused by gain-of-function mutations in the fibroblast growth factor receptor 3 (FGFR3) gene. Foramen magnum stenosis (FMS) is one of the serious neurological complications in ACH. Through comprehensive drug screening, the authors identified that meclozine, an over-the-counter drug for motion sickness, inhibited activation of FGFR3 signaling. Oral administration of meclozine to the growing ACH mice promoted longitudinal bone growth, but it did not prevent FMS...
October 21, 2016: Journal of Neurosurgery. Pediatrics
Masaaki Yanishi, Hidefumi Kinoshita, Takao Mishima, Hisanori Taniguchi, Kenji Yoshida, Yoshihiro Komai, Kaneki Yasuda, Masato Watanabe, Motohiko Sugi, Tadashi Matsuda
PURPOSE: Urinary biomarkers of renal injury urinary may identify loss of renal function following nephron-sparing surgery (NSS). This study was designed to evaluate whether urinary l-type fatty acid-binding protein (l-FABP) is an early biomarker of loss of renal function after NSS. Specifically, the kinetics of urinary l-FABP level after NSS and its correlation with factors related to ischemic renal injury were analyzed. METHODS: This study prospectively evaluated 18 patients who underwent NSS between July and December 2014, including 12 who underwent laparoscopic and six who underwent robot-assisted partial nephrectomy...
October 21, 2016: Renal Failure
Hengfei Shi, Ke Ren, Baojie Lv, Wei Zhang, Ying Zhao, Ren Xiang Tan, Erguang Li
The roots of Scutellaria baicalensis has been used as a remedy for inflammatory and infective diseases for thousands of years. We evaluated the antiviral activity against respiratory syncytial virus (RSV) infection, the leading cause of childhood infection and hospitalization. By fractionation and chromatographic analysis, we determined that baicalin was responsible for the antiviral activity of S. baicalensis against RSV infection. The concentration for 50% inhibition (IC50) of RSV infection was determined at 19...
October 21, 2016: Scientific Reports
Denise Laskowski, Ylva Sjunnesson, Hans Gustafsson, Patrice Humblot, Göran Andersson, Renée Båge
BACKGROUND: Insulin has been used as a stimulatory factor for in vitro cell culture since many years. Even for routine in vitro embryo production (IVP), insulin is added to the media during different steps. There is a strong difference in concentrations used in vitro compared to what is measured in vivo in follicular fluid or serum. We performed a pilot study on insulin stability to explain possible reasons for that variation. RESULTS: We measured insulin concentrations before and after bovine oocyte maturation in an experiment by using a quantitative ELISA (Mercodia bovine insulin ELISA immunoassay) and found that concentrations were stable up to 22 h of incubation...
October 20, 2016: Acta Veterinaria Scandinavica
Peter T Theunissen, Sonia Beken, Bruce Beyer, William J Breslin, Gregg D Cappon, Connie L Chen, Gary Chmielewski, Luc de Schaepdrijver, Brian Enright, Jennifer E Foreman, Wafa Harrouk, Kok-Wah Hew, Alan M Hoberman, Julia Y Hui, Thomas B Knudsen, Susan B Laffan, Susan L Makris, Matthew Martin, Mary Ellen McNerney, Christine L Siezen, Dinesh J Stanislaus, Jane Stewart, Kary E Thompson, Belen Tornesi, Jan Willem Van der Laan, Gerhard F Weinbauer, Sandra Wood, Aldert H Piersma
A database of embryo-fetal developmental toxicity (EFDT) studies of 379 pharmaceutical compounds in rat and rabbit was analyzed for species differences based on toxicokinetic parameters of area under the curve (AUC) and maximum concentration (Cmax) at the developmental lowest adverse effect level (dLOAEL). For the vast majority of cases (83% based on AUC of n = 283), dLOAELs in rats and rabbits were within the same order of magnitude (less than 10-fold different) when compared based on available data on AUC and Cmax exposures...
October 21, 2016: Critical Reviews in Toxicology
Javier Díez
Natriuretic peptides (NPs) promote diuresis, natriuresis and vasodilation in early chronic heart failure (CHF), countering renin-angiotensin-aldosterone system (RAAS) and sympathetic nervous system (SNS) overstimulation. Despite dramatic increases in circulating NP concentrations as CHF progresses, their effects become blunted. Increases in diuresis, natriuresis, and vasodilation after administration of exogenous atrial (ANP) or brain (BNP) natriuretic peptides are attenuated in patients with advanced CHF compared with controls...
October 21, 2016: European Journal of Heart Failure
Wouter C Meijers, A Rogier van der Velde, Anneke C Muller Kobold, Janneke Dijck-Brouwer, Alan H Wu, Allan Jaffe, Rudolf A de Boer
AIMS: Biomarkers can be used for diagnosis, risk stratification, or management of patients with heart failure (HF). Knowledge about the biological variation is needed for proper interpretation of serial measurements. Therefore, we aimed to determine and compare the biological variation of a large panel of biomarkers in healthy subjects and in patients with chronic HF. METHODS AND RESULTS: The biological variability of established biomarkers [NT-proBNP and high-sensitivity troponin T (hsTnT)], novel biomarkers [galectin-3, suppression of tumorigenicity 2 (ST2), and growth differentiation factor 15 (GDF-15)], and renal/neurohormonal biomarkers (aldosterone, phosphate, parathyroid hormone, plasma renin concentration, and creatinine) was determined in 28 healthy subjects and 83 HF patients, over a period of 4 months and 6 weeks, respectively...
October 21, 2016: European Journal of Heart Failure
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