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https://www.readbyqxmd.com/read/28526997/nafld-as-a-sexual-dimorphic-disease-role-of-gender-and-reproductive-status-in-the-development-and-progression-of-nonalcoholic-fatty-liver-disease-and-inherent-cardiovascular-risk
#1
REVIEW
Stefano Ballestri, Fabio Nascimbeni, Enrica Baldelli, Alessandra Marrazzo, Dante Romagnoli, Amedeo Lonardo
Nonalcoholic fatty liver disease (NAFLD) spans steatosis through nonalcoholic steatohepatis, cirrhosis, and hepatocellular carcinoma (HCC) associated with striking systemic features and excess cardiovascular and liver-related mortality. The pathogenesis of NAFLD is complex and multifactorial. Endocrine derangements are closely linked with dysmetabolic traits. For example, in animal and human studies, female sex is protected from dysmetabolism thanks to young individuals' ability to partition fatty acids towards ketone body production rather than very low density lipoprotein (VLDL)-triacylglycerol, and to sex-specific browning of white adipose tissue...
May 19, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28525362/fgf21-receptor-agonists-an-emerging-therapeutic-class-for-obesity-related-diseases
#2
Junichiro Sonoda, Mark Z Chen, Amos Baruch
Fibroblast growth factor 21 (FGF21) analogs and FGF21 receptor agonists (FGF21RAs) that mimic FGF21 ligand activity constitute the new "FGF21-class" of anti-obesity and anti-diabetic molecules that improve insulin sensitivity, ameliorate hepatosteatosis and promote weight loss. The metabolic actions of FGF21-class proteins in obese mice are attributed to stimulation of brown fat thermogenesis and increased secretion of adiponectin. The therapeutic utility of this class of molecules is being actively investigated in clinical trials for the treatment of type 2 diabetes and non-alcoholic steatohepatitis (NASH)...
May 19, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28521767/the-impact-of-an-m-health-financial-incentives-program-on-the-physical-activity-and-diet-of-australian-truck-drivers
#3
Nicholas D Gilson, Toby G Pavey, Olivia Rl Wright, Corneel Vandelanotte, Mitch J Duncan, Sjaan Gomersall, Stewart G Trost, Wendy J Brown
BACKGROUND: Chronic diseases are high in truck drivers and have been linked to work routines that promote inactivity and poor diets. This feasibility study examined the extent to which an m-Health financial incentives program facilitated physical activity and healthy dietary choices in Australian truck drivers. METHODS: Nineteen men (mean [SD] age = 47.5 [9.8] years; BMI = 31.2 [4.6] kg/m(2)) completed the 20-week program, and used an activity tracker and smartphone application (Jawbone UP™) to regulate small positive changes in occupational physical activity, and fruit, vegetable, saturated fat and processed/refined sugar food/beverage choices...
May 18, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28520584/eating-disorders-and-bone-metabolism-in-women
#4
Lauren Robinson, Nadia Micali, Madhusmita Misra
PURPOSE OF REVIEW: Eating Disorders are psychiatric disorders associated with a high risk for low bone mineral density (BMD) and fractures. Low BMD is a consequence of undernutrition, changes in body composition, and hormonal alterations. This review summarizes recent findings regarding novel strategies for assessing bone outcomes in patients with eating disorders, factors contributing to altered bone metabolism, and possible therapeutic strategies. RECENT FINDINGS: Emerging research in this field suggests that not only anorexia nervosa, but also bulimia nervosa results in lower BMD compared to controls...
May 16, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28509766/brown-adipose-tissue-detected-by-pet-ct-imaging-is-associated-with-less-central-obesity
#5
Aileen L Green, Ulas Bagci, Sarfaraz Hussein, Patrick V Kelly, Razi Muzaffar, Brent A Neuschwander-Tetri, Medhat M Osman
PURPOSE: This retrospective review was performed to determine whether patients with brown adipose tissue (BAT) detected by fluorine-18-fluorodeoxyglucose (F-FDG) PET/computed tomography (CT) imaging have less central obesity than BMI-matched control patients without detectable BAT. PATIENTS AND METHODS: Thirty-seven adult oncology patients with F-FDG BAT uptake were retrospectively identified from PET/CT studies from 2011 to 2013. The control cohort consisted of 74 adult oncology patients without detectable F-FDG BAT uptake matched for BMI/sex/season...
May 15, 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28507313/chronic-intrahypothalamic-rather-than-subcutaneous-liraglutide-treatment-reduces-body-weight-gain-and-stimulates-the-melanocortin-receptor-system
#6
K Kaineder, T Birngruber, G Rauter, B Obermüller, J Eichler, J Münzker, W Al-Zoughbi, S I Mautner, S S Torekov, B Hartmann, P Kotzbeck, T R Pieber
BACKGROUND: The GLP-1 receptor agonist liraglutide is marketed for obesity treatment where it induces body weight reduction possibly via the hypothalamus, which regulates energy homeostasis. In animal studies, acute liraglutide treatment triggers satiety, weight loss and activates thermogenesis in adipose tissue. However, the precise mechanisms how liraglutide affects in particular chronic weight loss are still under investigation. OBJECTIVES: We aimed to evaluate whether chronic hypothalamic or chronic subcutaneous administration of liraglutide induces sustained weight loss through altered adipose tissue function and to what extent hypothalamic neuronal appetite regulators are involved in the liraglutide-induced weight loss in healthy lean rats on a normal diet...
April 25, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28507012/dietary-factors-promoting-brown-and-beige-fat-development-and-thermogenesis
#7
REVIEW
Meshail Okla, Jiyoung Kim, Karsten Koehler, Soonkyu Chung
Brown adipose tissue (BAT) is a specialized fat tissue that has a high capacity to dissociate cellular respiration from ATP utilization, resulting in the release of stored energy as heat. Adult humans possess a substantial amount of BAT in the form of constitutively active brown fat or inducible beige fat. BAT activity in humans is inversely correlated with adiposity, blood glucose concentrations, and insulin sensitivity; this suggests that strategies aimed at BAT-mediated bioenergetics are an attractive therapeutic target in combating the continuing epidemic of obesity and diabetes...
May 2017: Advances in Nutrition
https://www.readbyqxmd.com/read/28501497/the-micro-managing-fat-exosomes-as-a-new-messenger
#8
Xiao-Wei Chen, Siming Li, Jiandie D Lin
Brown fat secretes endocrine factors and exerts metabolic effects beyond thermogenesis. In addition to protein factors and bioactive lipids, recent work has revealed brown fat-derived miRNAs carried by exosomes as a new means of interorgan crosstalk, with potentially important implications for metabolic physiology and disease.
May 10, 2017: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/28494871/mirna-32-drives-brown-fat-thermogenesis-and-trans-activates-subcutaneous-white-fat-browning-in-mice
#9
Raymond Ng, Nurul Attiqah Hussain, Qiongyi Zhang, Chengwei Chang, Hongyu Li, Yanyun Fu, Lei Cao, Weiping Han, Walter Stunkel, Feng Xu
Brown adipose tissue (BAT) activation and subcutaneous white fat browning are essential components of the thermogenic response to cold stimulus in mammals. microRNAs have been shown to regulate both processes in cis. Here, we identify miR-32 as a BAT-specific super-enhancer-associated miRNA in mice that is selectively expressed in BAT and further upregulated during cold exposure. Inhibiting miR-32 in vivo led to impaired cold tolerance, decreased BAT thermogenesis, and compromised white fat browning as a result of reduced serum FGF21 levels...
May 9, 2017: Cell Reports
https://www.readbyqxmd.com/read/28493443/natural-alkaloid-bouchardatine-ameliorates-metabolic-disorders-in-high-fat-diet-fed-mice-via-stimulating-the-sirt1-lkb1-ampk-axis
#10
Yong Rao, Hong Yu, Lin Gao, Yu-Ting Lu, Zhao Xu, Hong Liu, Lian-Quan Gu, Ji-Ming Ye, Zhi-Shu Huang
BACKGROUND AND PURPOSE: Promoting energy metabolism is known to provide therapeutic effects for obesity and associated metabolic disorders. The present study evaluated the therapeutic effects of the newly-identified bouchardatine (Bou) on obesity associated metabolic disorders and the molechular mechanisms for these effects. EXPERIMENTAL APPROACH: The molecular mode of action of Bou for its effects on lipid metabolism was first examined in 3T3-L1 adipocytes and HepG2 cells...
May 10, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28490632/cell-death-inducing-dna-fragmentation-factor-a-like-effector-a-and-fat-specific-protein-27%C3%AE-coordinately-control-lipid-droplet-size-in-brown-adipocytes
#11
Yuki Nishimoto, Shinsuke Nakajima, Sanshiro Tateya, Masayuki Saito, Wataru Ogawa, Yoshikazu Tamori
Adipose tissue stores neutral lipids and is a major metabolic organ involved in regulating whole-body energy homeostasis. Triacylglycerol is stored as unilocular large lipid droplets (LDs) in white adipocytes and as multilocular small LDs in brown adipocytes. Proteins of the cell death-inducing DNA fragmentation factor A (DFFA)-like effector (Cide) family include CideA, CideB, and fat-specific protein of 27 (FSP27). Of these, FSP27 has been shown to play a crucial role in the formation of unilocular large LDs in white adipocytes...
May 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28489652/histone-deacetylase-inhibitors-enhance-cytotoxicity-towards-breast-tumors-while-preserving-the-wound-healing-function-of-adipose-derived-stem-cells
#12
Kiavash R Koko, Shaohua Chang, Ashleigh L Hagaman, Marc W Fromer, Ryan S Nolan, John P Gaughan, Ping Zhang, Jeffrey P Carpenter, Spencer A Brown, Martha Matthews, Dorothy Bird
INTRODUCTION: Paclitaxel improves the oncologic response of breast cancer resections; however, it may negatively affect the wound-healing potential of human adipose-derived stem cells (hASCs) for fat grafting and reconstructive surgery. Histone deacetylase inhibitors (HDACis) modify the epigenetic regulation of gene expression and stabilize microtubules similarly to paclitaxel, thus, creating a synergistic mechanism of cell cycle arrest. We aim to combine these drugs to enhance cytotoxicity towards breast cancer cells, while preserving the wound-healing function of hASCs for downstream reconstructive applications...
June 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28484364/energy-homeostasis-in-monotremes
#13
REVIEW
Stewart C Nicol
In 1803, the French anatomist Étienne Geoffroy Saint-Hilaire decided that the newly described echidna and platypus should be placed in a separate order, the monotremes, intermediate between reptiles and mammals. The first physiological observations showed monotremes had low body temperatures and metabolic rates, and the consensus was that they were at a stage of physiological development intermediate between "higher mammals" and "lower vertebrates." Subsequent studies demonstrated that platypuses and echidnas are capable of close thermoregulation in the cold although less so under hot conditions...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28476619/trb3-gene-silencing-activates-ampk-in-adipose-tissue-with-beneficial-metabolic-effects-in-obese-and-diabetic-rats
#14
Xiaoyan Sun, Ming Song, Hui Wang, Huimin Zhou, Feng Wang, Ya Li, Yun Zhang, Wei Zhang, Ming Zhong, Yun Ti
Our previous study had suggested Tribbles homolog 3 (TRB3) might be involved in metabolic syndrome via adipose tissue. Given prior studies, we sought to determine whether TRB3 plays a major role in adipocytes and adipose tissue with beneficial metabolic effects in obese and diabetic rats. Fully differentiated 3T3-L1 adipocytes were incubated to induce insulin resistant adipocytes. Forty male Sprague-Dawley rats were all fed high-fat (HF) diet. Type 2 diabetic rat model was induced by high-fat diet and low-dose streptozotocin (STZ)...
June 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28476236/genetics-of-lipodystrophy
#15
REVIEW
Marissa Lightbourne, Rebecca J Brown
Lipodystrophy disorders are characterized by selective loss of fat tissue with metabolic complications including insulin resistance, hypertriglyceridemia, and nonalcoholic liver disease. These complications can be life-threatening, affect quality of life, and result in increased health care costs. Genetic discoveries have been particularly helpful in understanding the pathophysiology of these diseases, and have shown that mutations affect pathways involved in adipocyte differentiation and survival, lipid droplet formation, and lipid synthesis...
June 2017: Endocrinology and Metabolism Clinics of North America
https://www.readbyqxmd.com/read/28474500/vitamin-d3-supplementation-of-a-high-fat-high-sugar-diet-ameliorates-prediabetic-phenotype-in-female-ldlr-and-ldlr-mice
#16
Ramiar Kheder, James Hobkirk, Zeayd Saeed, Justyna Janus, Sean Carroll, Michael J Browning, Cordula Stover
INTRODUCTION: Fatty liver disease is prevalent in populations with high caloric intake. Nutritherapeutic approaches are being considered, such as supplementary Vitamin D3 , to improve aspects of metabolic syndrome, namely fatty liver disease, hyperlipidemia, and insulin resistance associated with obesity. METHODS: We analyzed female LDLR(-/-) and LDLR(+/+) mice on a 10-week diabetogenic diet for markers of fatty liver disease, metabolic strain, and inflammation...
June 2017: Immunity, Inflammation and Disease
https://www.readbyqxmd.com/read/28472859/lifestyle-interventions-for-the-treatment-of-women-with-gestational-diabetes
#17
REVIEW
Julie Brown, Nisreen A Alwan, Jane West, Stephen Brown, Christopher Jd McKinlay, Diane Farrar, Caroline A Crowther
BACKGROUND: Gestational diabetes (GDM) is glucose intolerance, first recognised in pregnancy and usually resolving after birth. GDM is associated with both short- and long-term adverse effects for the mother and her infant. Lifestyle interventions are the primary therapeutic strategy for many women with GDM. OBJECTIVES: To evaluate the effects of combined lifestyle interventions with or without pharmacotherapy in treating women with gestational diabetes. SEARCH METHODS: We searched the Pregnancy and Childbirth Group's Trials Register (14 May 2016), ClinicalTrials...
May 4, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28471913/increased-fat-absorption-from-enteral-formula-through-an-in-line-digestive-cartridge-in-patients-with-cystic-fibrosis
#18
Steven Freedman, David Orenstein, Phillip Black, Perry Brown, Karen McCoy, John Stevens, Danica Grujic, Russell Clayton
OBJECTIVES: Supplemental enteral nutrition (EN) is used by approximately 12% of people with cystic fibrosis (CF). The objective of this study was to evaluate the safety, tolerability, and fat absorption of a new in-line digestive cartridge (Relizorb) that hydrolyzes fat in enteral formula provided to patients with CF. METHODS: Patients with CF receiving EN participated in a multicenter, randomized, double-blind, crossover trial with an open-label safety evaluation period...
May 3, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28469599/the-role-of-thyrotropin-receptor-activation-in-adipogenesis-and-modulation-of-fat-phenotype
#19
Mohd Shazli Draman, Michael Stechman, David Scott-Coombes, Colin M Dayan, Dafydd Aled Rees, Marian Ludgate, Lei Zhang
Evidence from clinical and experimental data suggests that thyrotropin receptor (TSHR) signaling is involved in energy expenditure through its impact on white adipose tissue (WAT) and brown adipose tissue (BAT). TSHR expression increases during mesenchymal stem cell (MSC) differentiation into fat. We hypothesize that TSHR activation [TSHR*, elevated thyroid-stimulating hormone, thyroid-stimulating antibodies (TSAB), or activating mutation] influences MSC differentiation, which contributes to body composition changes seen in hypothyroidism or Graves' disease (GD)...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28469146/optical-visualisation-of-thermogenesis-in-stimulated-single-cell-brown-adipocytes
#20
Rókus Kriszt, Satoshi Arai, Hideki Itoh, Michelle H Lee, Anna G Goralczyk, Xiu Min Ang, Aaron M Cypess, Andrew P White, Farnaz Shamsi, Ruidan Xue, Jung Yeol Lee, Sung-Chan Lee, Yanyan Hou, Tetsuya Kitaguchi, Thankiah Sudhaharan, Shin'ichi Ishiwata, E Birgitte Lane, Young-Tae Chang, Yu-Hua Tseng, Madoka Suzuki, Michael Raghunath
The identification of brown adipose deposits in adults has led to significant interest in targeting this metabolically active tissue for treatment of obesity and diabetes. Improved methods for the direct measurement of heat production as the signature function of brown adipocytes (BAs), particularly at the single cell level, would be of substantial benefit to these ongoing efforts. Here, we report the first application of a small molecule-type thermosensitive fluorescent dye, ERthermAC, to monitor thermogenesis in BAs derived from murine brown fat precursors and in human brown fat cells differentiated from human neck brown preadipocytes...
May 3, 2017: Scientific Reports
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