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https://www.readbyqxmd.com/read/28339937/uterine-artery-leptin-receptors-during-the-ovarian-cycle-and-pregnancy-regulate-angiogenesis-in-ovine-uterine-artery-endothelial-cells
#1
Vladimir E Vargas, Rosalina Villalon Landeros, Gladys E Lopez, Jing Zheng, Ronald R Magness
Leptin regulates body weight, reproductive functions, blood pressure, endothelial function, and fetoplacental angiogenesis. Compared to the luteal phase, the follicular phase and pregnancy are physiological states of elevated estrogen, angiogenesis, and uterine blood flow (UBF). Little is known concerning leptin and its receptors (OB-R) for regulating uterine artery (UA) angiogenesis. We : 1) Ex vivo expression of OB-R in UA endothelium (UAendo) and UA vascular smooth muscle (UAvsm) is elevated in pregnant vs...
March 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28337026/increased-glp2r-expression-in-gastric-chief-cells-of-patients-with-severe-obesity-regardless-of-diabetes-status
#2
F Li, L Lu, Y Peng, Y Zhang, J Gao, D Zhou, D Zhou, H Sheng, S Qu
Glucagon-like peptide-2 (GLP-2) affects multiple facets of gastrointestinal physiology and have been used to treat patients with short bowel syndrome, but the distribution of its receptor (GLP2R) in human remains poorly understood. Gastric tissue samples of non-obese patients (NOB, n=10) and obese patients without diabetes (OB, n=31) and with diabetes (OWD, n=12) were used to evaluate GLP2R expression and distribution. Immunostaining with a validated antibody, as well as fluorescence in situ hybridization, showed that GLP2R expression was significantly increased in gastric chief cells in OB and OWD patients...
March 24, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28336683/let-7-regulates-radial-migration-of-new-born-neurons-through-positive-regulation-of-autophagy
#3
Rebecca Petri, Karolina Pircs, Marie E Jönsson, Malin Åkerblom, Per Ludvik Brattås, Thies Klussendorf, Johan Jakobsson
During adult neurogenesis, newly formed olfactory bulb (OB) interneurons migrate radially to integrate into specific layers of the OB Despite the importance of this process, the intracellular mechanisms that regulate radial migration remain poorly understood. Here, we find that microRNA (miRNA) let-7 regulates radial migration by modulating autophagy in new-born neurons. Using Argonaute2 immunoprecipitation, we performed global profiling of miRNAs in adult-born OB neurons and identified let-7 as a highly abundant miRNA family...
March 23, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28334266/phenopolis-an-open-platform-for-harmonization-and-analysis-of-genetic-and-phenotypic-data
#4
Nikolas Pontikos, Jing Yu, Ismail Moghul, Lucy Withington, Fiona Blanco-Kelly, Tom Vulliamy, Tsz Lun Wong, Cian Murphy, Valentina Cipriani, Alessia Fiorentino, Gavin Arno, Daniel Greene, Julius Ob Jacobsen, Tristan Clark, David S Gregory, Andrea Nemeth, Stephanie Halford, Chris F Inglehearn, Susan Downes, Graeme C Black, Andrew R Webster, Alison J Hardcastle, Vincent Plagnol
Summary: Phenopolis is an open-source web server providing an intuitive interface to genetic and phenotypic databases. It integrates analysis tools such as variant filtering and gene prioritisation based on phenotype. The Phenopolis platform will accelerate clinical diagnosis, gene discovery and encourage wider adoption of the Human Phenotype Ontology in the study of rare genetic diseases. Availability and Implementation: A demo of the website is available at https://phenopolis...
March 15, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28332276/dual-ccr2-ccr5-antagonist-treatment-attenuates-adipose-inflammation-but-not-microvascular-complications-in-ob-ob-mice
#5
Phillipe D O'Brien, Lucy M Hinder, Sebastian D Parlee, John M Hayes, Carey Backus, Hongyu Zhang, Lijun Ma, Stacey A Sakowski, Frank C Brosius, Eva L Feldman
Diabetic peripheral neuropathy (DPN) and diabetic kidney disease (DKD) are common diabetic complications with limited treatment options. Experimental studies show that targeting inflammation using chemokine receptor (CCR) antagonists ameliorates DKD, presumably by reducing macrophage accumulation or activation. As inflammation is implicated in DPN development, we assessed whether CCR2 and CCR5 antagonism could also benefit DPN. Five-week-old ob/ob mice were fed a diet containing MK-0812, a dual CCR2-CCR5 receptor antagonist, for 8 weeks and DPN, DKD, and metabolic phenotyping were then performed to determine the effect of CCR inhibition...
March 23, 2017: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/28331737/barriers-against-mammographic-screening-in-a-socioeconomically-underdeveloped-population-a-population-based-cross-sectional-study
#6
Tolga Özmen, Salih Yüce, Tekin Güler, Canan Ulun, Nilufer Özaydın, Sandhya Pruthi, Nezih Akkapulu, Koray Karabulut, Atilla Soran, Vahit Özmen
OBJECTIVE: Mammography-screening (MS) rates remain low in underdeveloped populations. We aimed to find the barriers against MS in a low socioeconomic population. MATERIALS AND METHODS: Women aged 40-69 years who lived in the least developed city in Turkey (Mus), were targeted. A survey was used to question breast cancer (BC) knowledge and health practices. RESULTS: In total, 2054 women were surveyed (participation rate: 85%). The MS rate was 35%...
April 2016: J Breast Health (2013)
https://www.readbyqxmd.com/read/28330762/effect-of-whole-brain-irradiation-on-the-specific-brain-regions-in-a-rat-model-metabolic-and-histopathological-changes
#7
Soňa Bálentová, Petra Hnilicová, Dagmar Kalenská, Peter Murín, Eva Hajtmanová, Ján Lehotský, Marian Adamkov
Effect of ionizing radiation on the brain affects neuronal, glial, and endothelial cell population and lead to significant morphological, metabolic, and functional deficits. In the present study we investigated a dose- and time-dependent correlation between radiation-induced metabolic and histopathological changes. Adult male Wistar rats received a total dose of 35Gy delivered in 7 fractions (dose 5Gy per fraction) once per week in the same weekday during 7 consecutive weeks. Proton magnetic resonance spectroscopy ((1)H MRS), histochemistry, immunohistochemistry and confocal microscopy were used to determine whether radiation-induced alteration of the brain metabolites correlates with appropriate histopathological changes of neurogenesis and glial cell response in 2 neurogenic regions: the hippocampal dentate gyrus (DG) and the subventricular zone-olfactory bulb axis (SVZ-OB axis)...
March 19, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28328168/intrastriatal-transplantation-of-human-neural-stem-cells-restores-the-impaired-subventricular-zone-in-parkinsonian-mice
#8
Fuxing Zuo, Feng Xiong, Xia Wang, Xueyuan Li, Renzhi Wang, Wei Ge, Xinjie Bao
Cell replacement therapy using neural stem cells (NSCs) transplantation has recently emerged as a promising method of Parkinson's disease (PD) treatment; however, the underlying mechanisms are not fully understood. To gain new insights into the mechanisms of 6-hydroxydopamine (6-OHDA)-induced lesioning and therapeutic efficacy of human NSCs (hNSCs) transplantation, the striatum (ST) of intrastriatal 6-OHDA-injected parkinsonian mice were unilaterally engrafted with undifferentiated hNSCs. A high-throughput quantitative proteomic approach was used to characterize the proteome profiles of PD-related brain regions such as the SN, ST, olfactory bulb (OB), and subventricular zone (SVZ) in these mice...
March 22, 2017: Stem Cells
https://www.readbyqxmd.com/read/28326904/validation-of-psychomotor-tasks-by-simbionix-lap-mentor-simulator-and-identifying-the-target-group
#9
Mohamed Elessawy, Arne Wewer, Veronika Guenther, Thorsten Heilmann, Christel Eckmann-Scholz, Christian Schem, Nicolai Maass, Karl-Günter Noe, Liselotte Mettler, Ibrahim Alkatout
BACKGROUND: This study addresses target group reliability and task validity for training on a laparoscopic simulator. MATERIAL AND METHODS: Data were collected on 64 participants prospectively at the Department of OB/GYN, University Hospitals Schleswig-Holstein, Campus Kiel. The Simbionix LAP Mentor for laparoscopic simulation was used to test trainees. Each participant received a questionnaire to clarify his/her medical position, surgical experience, and previous virtual reality (VR) experience, including video gaming experience...
March 22, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28323276/open-capsule-budesonide-for-refractory-celiac-disease
#10
Saurabh S Mukewar, Ayush Sharma, Alberto Rubio-Tapia, Tsung-Teh Wu, Bana Jabri, Joseph A Murray
OBJECTIVES: Refractory celiac disease (RCD) is a rare condition often associated with poor prognosis. Various immunosuppressive medications (IMs) have been used with modest success. We describe outcomes in patients treated with open-capsule budesonide (OB), including those for whom IM treatment failed. METHODS: We identified RCD patients treated with OB at Mayo Clinic, Rochester, Minnesota from 2003 to 2015. Demographic, serologic, and clinical variables were analyzed...
March 21, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28319086/cytochrome-p450-cyp-epoxygenases-as-potential-targets-in-the-management-of-impaired-diabetic-wound-healing
#11
Huichen Zhao, Jicui Chen, Jiachao Chai, Yuchao Zhang, Cong Yu, Zhe Pan, Peng Gao, Chen Zong, Qingbo Guan, Yuqin Fu, Yuantao Liu
Epoxyeicosatrienoic acids (EETs) are the epoxidation products of arachidonic acid catalyzed by cytochrome P450 (CYP) epoxygenases, which possess multiple biological activities. In the present study, we aimed to explore the role and effects of CYP epoxygenases/EETs in wound healing in ob/ob mice. Full-thickness skin dorsal wounds were made on ob/ob mice and C57BL/6 control mice. The mRNA and protein expression of CYP epoxygenases were determined in granulation tissues of wounds. Effects of EETs on wound healing were evaluated...
March 20, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28316278/high-risk-obstetrical-call-center-a-model-for-regions-with-limited-access-to-care
#12
Sarah J Rhoads, Hari Eswaran, Christian E Lynch, Songthip T Ounpraseuth, Everett F Magann, Curtis L Lowery
PURPOSE: High-risk obstetrical care can be challenging for women in rural states with limited access. MATERIALS AND METHODS: Data were evaluated from 62,342 obstetrical calls from pregnant and postpartum patients within rural Arkansas to a nurse call center. Call center nurses provided triage using evidence-based guidelines to patients across the state. Data were extracted and analyzed using retrospective data collection and descriptive statistical methods. RESULTS: Women had an average maternal age of 28 years old, average weeks gestation was 27...
March 19, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28315665/physician-scientists-in-obstetrics-and-gynecology-predictors-of-success-in-obtaining-independent-research-funding
#13
Ijeoma Okeigwe, Cynthia Wang, Joseph A Politch, Linda J Heffner, Wendy Kuohung
BACKGROUND: Obstetrics and gynecology departments receive the smallest amount of National Institutes of Health (NIH) research funding and have significantly lower application success rates compared to pediatric, internal medicine, and surgery departments. The development of mentored early career development training grants (K awards) has been one strategy implemented by the NIH to help aspiring physician-scientists establish independent research careers. OBJECTIVE: The purpose of this study is to describe the cohort of ob/gyn physician-scientists who were K08, K12, and K23 recipients from 1988-2015 and to identify predictors of success in obtaining independent federal funding, as defined by acquisition of an R01, R21, R34, U01, U54, P01, or P50...
March 15, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28304309/mouse-models-of-alzheimer-s-disease
#14
Gisela Esquerda-Canals, Laia Montoliu-Gaya, Jofre Güell-Bosch, Sandra Villegas
Alzheimer's disease (AD) is a neurodegenerative disorder that nowadays affects more than 40 million people worldwide and it is predicted to exponentially increase in the coming decades. Because no curative treatment exists, research on the pathophysiology of the disease, as well as the testing of new drugs, are mandatory. For these purposes, animal models constitute a valuable, although perfectible tool. This review takes a tour through several aspects of mouse models of AD, such as the generation of transgenic models, the relevance of the promoter driving the expression of the transgenes, and the concrete transgenes used to simulate AD pathophysiology...
March 10, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28301158/amino-acid-functionalization-of-doped-single-walled-carbon-nanotubes-effects-of-dopants-and-side-chains-as-well-as-zwitterionic-stabilizations
#15
Lisha Jiang, Chang Zhu, Yu-Jie Fu, Gang Yang
Functionalization of single-walled carbon nanotubes (SWCNTs) is necessitated in a number of conditions such as drug delivery, and here amino acid functionalization of SWCNTs is conducted within the framework of density functional theory. Functionalization efficiencies of Gly are largely determined by dopants, as a combined effect of atomic radius, electronic configuration and distortion to SWCNTs. Different functionalization sites in Gly have divergent interaction strengths with M/SWCNTs that decline as Ob > N > Oa, and this trend seems almost independent of the identity of metallic dopants...
March 16, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28298331/expression-of-leptin-receptor-in-the-oviduct-of-chinese-brown-frog-rana-dybowskii
#16
Liqin Xi, Yuning Liu, Zeqi Tang, Xia Sheng, Haolin Zhang, Qiang Weng, Meiyu Xu
The oviduct of Chinese brown frog (Rana dybowskii) expands specifically during pre-hibernation instead of in the breeding period. In this study, we investigated the expression of leptin receptor (Ob-Rb) in Rana dybowskii oviduct during the breeding period and pre-hibernation. Histologically, the oviduct of Rana dybowskii consists of glandular cells, tubule lumen and epithelial cells. The oviductal weight and pipe diameter also revealed significant differences, which were higher in pre-hibernation than that of the breeding period...
March 15, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28294581/plasma-soluble-leptin-receptor-levels-are-associated-with-pancreatic-%C3%AE-cell-dysfunction-in-patients-with-type-2-diabetes
#17
Tomoaki Morioka, Masanori Emoto, Yuko Yamazaki, Masafumi Kurajoh, Koka Motoyama, Katsuhito Mori, Shinya Fukumoto, Atsushi Shioi, Tetsuo Shoji, Masaaki Inaba
AIMS/INTRODUCTION: A soluble form of the leptin receptor (soluble Ob-R) in circulation regulates leptin's bioactivity and is inversely associated with body adiposity and circulating leptin levels. However, no study has examined the clinical impact of soluble Ob-R on glucose metabolism in diabetes. This study aimed to investigate the association of plasma soluble Ob-R levels with insulin resistance and pancreatic β-cell function in patients with type 2 diabetes. MATERIALS AND METHODS: Two hundred and eighty nine Japanese patients with type 2 diabetes were included in this study...
March 14, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28292877/the-effects-of-dual-ppar%C3%AE-%C3%AE-agonism-compared-with-ace-inhibition-in-the-btbrob-ob-mouse-model-of-diabetes-and-diabetic-nephropathy
#18
Anette Ericsson, Pernilla Tonelius, Mark Lal, Alan Sabirsh, Gerhard Böttcher, Lena William-Olsson, Maria Strömstedt, Camilla Johansson, Gina Hyberg, Sofia Tapani, Ann-Cathrine Jönsson-Rylander, Robert Unwin
The leptin-deficient BTBRob/ob mouse develops progressive albuminuria and morphological lesions similar to human diabetic nephropathy (DN), although whether glomerular hyperfiltration, a recognized feature of early DN that may contribute to renal injury, also occurs in this model is not known. Leptin replacement has been shown to reverse the signs of renal injury in this model, but in contrast, the expected renoprotection by angiotensin-converting enzyme (ACE) inhibition in BTBRob/ob mice seems to be limited...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28291332/metal-substrate-mediated-plasmon-hybridization-in-a-nanoparticle-dimer-for-photoluminescence-line-width-shrinking-and-intensity-enhancement
#19
Guang-Can Li, Yong-Liang Zhang, Jing Jiang, Yu Luo, Dang Yuan Lei
Metal-film-coupled nanoparticles with subnanometer particle-film gaps possess an ultrasmall mode volume, responsible for a variety of intriguing phenomena in plasmonic nanophotonics. Due to the large radiative loss associated with dipolar coupling, however, the plasmonic-film-coupled nanocavities usually feature a low-quality factor, setting an ultimate limit of the increased light-matter interaction strength. Here, we demonstrate a plasmonic nanocavity composed of a metal-film-coupled nanoparticle dimer, exhibiting a significantly improved quality factor...
March 17, 2017: ACS Nano
https://www.readbyqxmd.com/read/28291266/spatial-and-quantitative-datasets-of-the-pancreatic-%C3%AE-cell-mass-distribution-in-lean-and-obese-mice
#20
Saba Parween, Maria Eriksson, Christoffer Nord, Elena Kostromina, Ulf Ahlgren
A detailed understanding of pancreatic β-cell mass distribution is a key element to fully appreciate the pathophysiology of models of diabetes and metabolic stress. Commonly, such assessments have been performed by stereological approaches that rely on the extrapolation of two-dimensional data and provide very limited topological information. We present ex vivo optical tomographic data sets of the full β-cell mass distribution in cohorts of obese ob/ob mice and their lean controls, together with information about individual islet β-cell volumes, their three-dimensional coordinates and shape throughout the volume of the pancreas between 4 and 52 weeks of age...
March 14, 2017: Scientific Data
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