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https://www.readbyqxmd.com/read/28346489/gonadotropin-releasing-hormone-receptor-gnrhr-gene-knock-out-normal-growth-and-development-of-sensory-motor-and-spatial-orientation-behavior-but-altered-metabolism-in-neonatal-and-prepubertal-mice
#1
Ellen R Busby, Nancy M Sherwood
Gonadotropin-releasing hormone (GnRH) is important in the control of reproduction, but its actions in non-reproductive processes are less well known. In this study we examined the effect of disrupting the GnRH receptor in mice to determine if growth, metabolism or behaviors that are not associated with reproduction were affected. To minimize the effects of other hormones such as FSH, LH and sex steroids, the neonatal-prepubertal period of 2 to 28 days of age was selected. The study shows that regardless of sex or phenotype in the Gnrhr gene knockout line, there was no significant difference in the daily development of motor control, sensory detection or spatial orientation among the wildtype, heterozygous or null mice...
2017: PloS One
https://www.readbyqxmd.com/read/28339749/multi-generational-genome-wide-association-studies-identify-chromosomal-regions-associated-with-ascites-phenotype
#2
K J Tarrant, S Dey, R Kinney, N B Anthony, D D Rhoads
Ascites is a multi-faceted disease commonly observed in fast growing broilers, which is initiated when the body is insufficiently oxygenated. A series of events follow, including an increase in pulmonary artery pressure, right ventricle hypertrophy, and accumulation of fluid in the abdominal cavity and pericardium. Advances in management practices along with improved selection programs have decreased ascites incidence in modern broilers. However, ascites syndrome remains an economically important disease throughout the world, causing estimated losses of $100 million per year...
February 21, 2017: Poultry Science
https://www.readbyqxmd.com/read/28338890/metabolic-syndrome-and-insulin-resistance-are-associated-with-frailty-in-older-adults-a-prospective-cohort-study
#3
Raúl F Pérez-Tasigchana, Luz M León-Muñoz, Esther Lopez-Garcia, Juan L Gutierrez-Fisac, Martín Laclaustra, Fernando Rodríguez-Artalejo, Pilar Guallar-Castillón
Background: diabetes increases the risk of frailty that is a leading cause of disability and premature mortality in older people. Metabolic syndrome (MS) and insulin resistance (IR) are strong risk factors for diabetes and could, thus, lead to frailty. However, the association between MS or IR and frailty has barely been investigated. Methods: data were obtained from a cohort of 1,499 community-dwelling individuals aged ≥60, who were free of diabetes at 2008-10 and were followed up for 3...
March 1, 2017: Age and Ageing
https://www.readbyqxmd.com/read/28338717/divergences-in-hydraulic-architecture-form-an-important-basis-for-niche-differentiation-between-diploid-and-polyploid-betula-species-in-ne-china
#4
Wei-Wei Zhang, Jia Song, Miao Wang, Yan-Yan Liu, Na Li, Yong-Jiang Zhang, N Michele Holbrook, Guang-You Hao
Habitat differentiation between polyploid and diploid plants are frequently observed, with polyploids usually occupying more stressed environments. In woody plants, polyploidization can greatly affect wood characteristics but knowledge of its influences on xylem hydraulics is scarce. The four Betula species in NE China, representing two diploids and two polyploids with obvious habitat differentiation, provide an exceptional study system for investigating the impact of polyploidization on environmental adaptation of trees from the point view of xylem hydraulics...
February 13, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28336559/microvascular-endothelial-dysfunction-in-obesity-is-driven-by-macrophage-dependent-hydrogen-sulfide-depletion
#5
Joseph Candela, Rui Wang, Carl White
OBJECTIVE: The function of perivascular adipose tissue as an anticontractile mediator in the microvasculature is lost during obesity. Obesity results in inflammation and recruitment of proinflammatory macrophages to the perivascular adipose tissue that is paralleled by depletion of the vasorelaxant signaling molecule hydrogen sulfide (H2S) in the vessel. The current objective was to assess the role of macrophages in determining vascular [H2S] and defining how this impinged on vasodilation...
March 23, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28336326/oxidative-stress-and-genes-regulation-of-cerebral-malaria-upon-zizyphus-spina-christi-treatment-in-a-murine-model
#6
Murad A Mubaraki, Taghreed A Hafiz, Saleh Al-Quraishy, Mohamed A Dkhil
The development and spread of multidrug-resistant strains of malarial parasites have led to an overwhelming increase in the resistance to current antimalarial drugs. The urgent need for alternative antimalarial drugs has directed some of the current studies toward folkloric medicine approaches. Interestingly, the Zizyphus spina Cristi leaf extract (ZLE) has been found to exhibit antiplasmodial activity. This study evaluated the protective effect of ZLE against Plasmodium berghei-induced cerebral tissue injuries in mice...
March 21, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28335761/the-effects-of-jiao-tai-wan-on-sleep-inflammation-and-insulin-resistance-in-obesity-resistant-rats-with-chronic-partial-sleep-deprivation
#7
Xin Zou, Wenya Huang, Fuer Lu, Ke Fang, Dingkun Wang, Shuyong Zhao, Jiming Jia, Lijun Xu, Kaifu Wang, Nan Wang, Hui Dong
BACKGROUND: Jiao-Tai-Wan (JTW), composed of Rhizome Coptidis and Cortex Cinnamomi, is a classical traditional Chinese prescription for treating insomnia. Several in vivo studies have concluded that JTW could exert its therapeutical effect in insomnia rats. However, the specific mechanism is still unclear. The present study aimed to explore the effect of JTW on sleep in obesity-resistant (OR) rats with chronic partial sleep deprivation (PSD) and to clarify its possible mechanism. METHODS: JTW was prepared and the main components contained in the granules were identified by 3D-High Performance Liquid Chromatography (3D-HPLC) assay...
March 23, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28335560/serum-amyloid-a-production-is-triggered-by-sleep-deprivation-in-mice-and-humans-is-that-the-link-between-sleep-loss-and-associated-comorbidities
#8
Edson M de Oliveira, Bruna Visniauskas, Sergio Tufik, Monica L Andersen, Jair R Chagas, Ana Campa
Serum amyloid A (SAA) was recently associated with metabolic endotoxemia, obesity and insulin resistance. Concurrently, insufficient sleep adversely affects metabolic health and is an independent predisposing factor for obesity and insulin resistance. In this study we investigated whether sleep loss modulates SAA production. The serum SAA concentration increased in C57BL/6 mice subjected to sleep restriction (SR) for 15 days or to paradoxical sleep deprivation (PSD) for 72 h. Sleep restriction also induced the upregulation of Saa1...
March 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28331796/an-unexpected-finding-in-a-man-with-multiple-pulmonary-nodules-a-pleural-effusion-and-respiratory-failure
#9
Yik Lam Pang, Quentin Jones
We report the case of a 47-year old Caucasian man with a history of depression and high alcohol intake who presented with a one-month history of weight loss, dry cough and abdominal pain. He had no smoking history of note. The patient was treated for a suspected chest infection, however developed respiratory failure and was intubated. A CT showed multiple pulmonary nodules, left pleural thickening extending to the mediastinum and bilateral pleural effusions-larger on the left, suggestive of disseminated malignancy...
2017: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/28331044/effectiveness-and-safety-of-clofazimine-in%C3%A2-multidrug-resistant-tuberculosis-a%C3%A2-nationwide-report-from-brazil
#10
Margareth Dalcolmo, Regina Gayoso, Giovanni Sotgiu, Lia D'Ambrosio, Jorge L Rocha, Liamar Borga, Fatima Fandinho, Jose U Braga, Vera M N Galesi, Draurio Barreira, Denise A Sanchez, Fernanda Dockhorn, Rosella Centis, Jose A Caminero, Giovanni B Migliori
Although clofazimine is used to treat multidrug-resistant tuberculosis (MDR-TB), there is scant information on its effectiveness and safety. The aim of this retrospective, observational study was to evaluate these factors as well as the tolerability of clofazimine in populations in Brazil, where it was administered at a daily dose of 100 mg·day(-1) (body weight ≥45 kg) as part of a standardised MDR-TB treatment regimen until 2006 (thereafter pyrazinamide was used).All MDR-TB patients included in the Sistema de Informação de Tratamentos Especiais da Tuberculose (SITETB) individual electronic register were analysed...
March 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28330852/a-controlled-release-mitochondrial-protonophore-reverses-hypertriglyceridemia-nonalcoholic-steatohepatitis-and-diabetes-in-lipodystrophic-mice
#11
Abudukadier Abulizi, Rachel J Perry, João Paulo G Camporez, Michael J Jurczak, Kitt Falk Petersen, Patricia Aspichueta, Gerald I Shulman
Lipodystrophy is a rare disorder characterized by complete or partial loss of adipose tissue. Patients with lipodystrophy exhibit hypertriglyceridemia, severe insulin resistance, type 2 diabetes, and nonalcoholic steatohepatitis (NASH). Efforts to ameliorate NASH in lipodystrophies with pharmacologic agents have met with limited success. We examined whether a controlled-release mitochondrial protonophore (CRMP) that produces mild liver-targeted mitochondrial uncoupling could decrease hypertriglyceridemia and reverse NASH and diabetes in a mouse model (fatless AZIP/F-1 mice) of severe lipodystrophy and diabetes...
March 22, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28326295/role-of-the-cytokine-like-hormone-leptin-in-muscle-bone-crosstalk-with-aging
#12
REVIEW
Mark W Hamrick
The cytokine-like hormone leptin is a classic adipokine that is secreted by adipocytes, increases with weight gain, and decreases with weight loss. Additional studies have, however, shown that leptin is also produced by skeletal muscle, and leptin receptors are abundant in both skeletal muscle and bone-derived mesenchymal (stromal) stem cells. These findings suggest that leptin may play an important role in muscle-bone crosstalk. Leptin treatment in vitro increases the expression of myogenic genes in primary myoblasts, and leptin treatment in vivo increases the expression of microRNAs involved in myogenesis...
February 2017: Journal of Bone Metabolism
https://www.readbyqxmd.com/read/28325338/physicochemical-properties-and-antidiabetic-effects-of-a-polysaccharide-from-corn-silk-in-high-fat-diet-and-streptozotocin-induced-diabetic-mice
#13
Yuxiang Pan, Cong Wang, Zhongqin Chen, Weiwei Li, Guoqi Yuan, Haixia Chen
This study aimed to investigate the physicochemical properties and antidiabetic effects of a polysaccharide obtained from corn silk (PCS2). PCS2 was isolated and the physicochemical properties were characterized. The hypoglycemic effects were determined using the high-fat diet and streptozocin induced type 2 diabetic mellitus (T2DM) insulin resistance mice. The results showed that PCS2 was a heteropolysaccharide with the average molecular weight of 45.5kDa. PCS2 was composed of d-galactose, d-mannose, d-(+)-glucose, d-(+)-xylose, l-arabinose and l-rhamnose...
May 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28323920/perinatal-exposure-to-low-dose-bisphenol-a-bpa-disrupts-the-structural-and-functional-development-of-the-hypothalamic-feeding-circuitry
#14
Harry MacKay, Zachary R Patterson, Alfonso Abizaid
Bisphenol-A (BPA) is a component of polycarbonate and other plastics to which humans are regularly exposed at low levels. BPA is characterized as an endocrine disruptor due to observations of its estrogenic activity in various experimental models. We have previously shown evidence of disrupted hypothalamic feeding circuitry and leptin sensitivity in adult BPA-exposed animals subject to a high-fat diet, but because these animals were already exhibiting a diet-induced obese phenotype, we could not rule out the possibility that these observations were simply consequences of the obesity, not a pre-existing phenotype produced by BPA exposure...
February 7, 2017: Endocrinology
https://www.readbyqxmd.com/read/28322645/the-effects-of-a-health-partner-program-on-reducing-cardiovascular-risk-factors
#15
Tingting Liu
Previous lifestyle intervention research targeting prediabetes has primarily focused on weight loss, blood glucose, and lipid abnormalities. Far less is known whether lifestyle interventions lower other biological and physical risk factors for cardiovascular disease in overweight/obese adults with or without prediabetes. The aim of the study was to determine if a health partner program reduced biological and physical cardiovascular risk factors in overweight/obese adults with and without prediabetes at 1 year...
December 1, 2016: Western Journal of Nursing Research
https://www.readbyqxmd.com/read/28321030/pancreas-volume-reduction-and-metabolic-effects-in-japanese-patients-with-severe-obesity-following-laparoscopic-sleeve-gastrectomy
#16
Akira Umemura, Akira Sasaki, Hiroyuki Nitta, Shigeaki Baba, Taro Ando, Takashi Kajiwara, Yasushi Ishigaki
This study aimed to assess the relationship between the metabolic effect after laparoscopic sleeve gastrectomy (LSG) in morbidly obese Japanese patients, with or without type 2 diabetes mellitus (T2DM), and improved pancreatic steatosis (PS). The study enrolled 27 morbidly obese Japanese patients who were undergoing LSG. Their clinical and metabolic effects were evaluated at baseline and six months after LSG. Pancreas volume (PV), pancreatic attenuation (PA), and splenic attenuation (SA) were measured using a 64-row computed tomography (CT)...
March 17, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28320950/ultrathin-dendrimer-graphene-oxide-composite-film-for-stable-cycling-lithium-sulfur-batteries
#17
Wen Liu, Jianbing Jiang, Ke R Yang, Yingying Mi, Piranavan Kumaravadivel, Yiren Zhong, Qi Fan, Zhe Weng, Zishan Wu, Judy J Cha, Henghui Zhou, Victor S Batista, Gary W Brudvig, Hailiang Wang
Lithium-sulfur batteries (Li-S batteries) have attracted intense interest because of their high specific capacity and low cost, although they are still hindered by severe capacity loss upon cycling caused by the soluble lithium polysulfide intermediates. Although many structure innovations at the material and device levels have been explored for the ultimate goal of realizing long cycle life of Li-S batteries, it remains a major challenge to achieve stable cycling while avoiding energy and power density compromises caused by the introduction of significant dead weight/volume and increased electrochemical resistance...
March 20, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28320059/effects-of-treadmill-exercise-on-advanced-osteoarthritis-pain-in-rats
#18
Joshua Allen, Ian Imbert, Joshua Havelin, Terry Henderson, Glenn Stevenson, Lucy Liaw, Tamara King
OBJECTIVE: Exercise is commonly recommended for patients with osteoarthritis (OA) pain. However, whether exercise is beneficial in ameliorating persistent NSAID-resistant ongoing pain associated with advanced OA is unknown. METHODS: Rats treated with intra-articular monosodium iodoacetate (MIA) or saline underwent treadmill exercise or remained sedentary starting 10 days post-injection. Tactile sensory thresholds and weight bearing were assessed followed by radiographs at weekly intervals...
March 20, 2017: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/28316072/the-effects-of-dash-diet-on-weight-loss-anti-m%C3%A3-llerian-hormone-and-metabolic-profiles-in-women-with-polycystic-ovary-syndrome-a-randomized-clinical-trial
#19
Fatemeh Foroozanfard, Hamideh Rafiei, Mansooreh Samimi, Hamid Reza Gilasi, Roohangiz Gorjizadeh, Zahra Heidar, Zatollah Asemi
OBJECTIVE: This study was designed to evaluate the effects of the Dietary Approaches to Stop Hypertension (DASH diet) on weight loss, anti-Müllerian hormone (AMH) and metabolic profiles in women with polycystic ovary syndrome (PCOS). DESIGN, PATIENTS AND MEASUREMENTS: A randomized controlled clinical trial was conducted among 60 overweight or obese patients with PCOS. Patients were randomly assigned to receive either low-calorie DASH (N=30) or control diet (N=30) for 12 weeks...
March 18, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28302292/short-term-effects-of-tolvaptan-in-patients%C3%A2-with-acute-heart-failure-and%C3%A2-volume-overload
#20
Marvin A Konstam, Michael Kiernan, Arthur Chandler, Ravi Dhingra, Freny Vaghaiwalla Mody, Howard Eisen, W Herbert Haught, Lynne Wagoner, Divya Gupta, Richard Patten, Paul Gordon, Kenneth Korr, Russell Fileccia, Susan J Pressler, Douglas Gregory, Patricia Wedge, Douglas Dowling, Matthew Romeling, Jeremy M Konstam, Joseph M Massaro, James E Udelson
BACKGROUND: In patients with acute heart failure (AHF), dyspnea relief is the most immediate goal. Renal dysfunction, diuretic resistance, and hyponatremia represent treatment impediments. OBJECTIVES: It was hypothesized that the addition of tolvaptan to a background diuretic improved dyspnea early in patients selected for an enhanced vasopressin antagonism response. METHODS: In a double-blind trial, patients were randomized to tolvaptan 30 mg/day or placebo...
March 21, 2017: Journal of the American College of Cardiology
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