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Fat mass associated gene

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https://www.readbyqxmd.com/read/29238857/fto-rs9939609-a-allele-influences-anthropometric-outcome-in-response-to-dietary-intervention-but-not-in-response-to-physical-exercise-program
#1
Gabrielle Araujo do Nascimento, Mayza Dalcin Teixeira, Lupe Furtado-Alle, Neiva Leite, Ricardo Lehtonen Rodrigues de Souza, Louise Farah Saliba, Gerusa Eisfeld Milano, Larissa Rosa da Silva, Juliana Pizzi, Wendell Arthur Lopes, Maria de Fátima Aguiar Lopes, Ana Cláudia Kapp Titski, Luciane Viater Tureck
PURPOSE: The fat mass and obesity-associated (FTO) gene is involved in energy homeostasis. The A allele of the rs9939609 (SNP; T>A) is associated with obesity and higher food intake, while its effect in energy expenditure remains unclear. The aim of this study is to examine whether FTO rs9939609 is associated with the anthropometric outcomes of a physical exercise program and a dietary intervention. METHODS: We studied two independent samples. The first was composed by children and adolescents in which overweight and obese individuals were submitted to a physical exercise program (n = 136) and normal weight participants served as a control group (n = 172)...
December 13, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/29237556/ubiquitination-regulates-the-proteasomal-degradation-and-nuclear-translocation-of-the-fat-mass-and-obesity-associated-fto-protein
#2
Tianyi Zhu, Xuan Ling Hilary Yong, Xia Di, Jocelyn Widagdo, Victor Anggono
Genetic polymorphisms in the fat mass and obesity-associated (FTO) gene have been strongly associated with obesity in humans. The cellular level of FTO is tightly regulated, with alterations in its expression influencing energy metabolism, food intake and body weight. Although the proteasome system is involved, the cellular mechanism underlying FTO protein turnover remains unknown. Here, we report that FTO undergoes post-translational ubiquitination on Lys-216. Knock-in HeLa cells harboring the ubiquitin-deficient K216R mutation displayed a slower rate of FTO turnover, resulting in an increase in the level of FTO as well as enhanced phosphorylation of the ribosomal S6 kinase...
December 10, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/29233619/fto-affects-food-cravings-and-interacts-with-age-to-influence-age-related-decline-in-food-cravings
#3
Linh C Dang, Gregory R Samanez-Larkin, Christopher T Smith, Jaime J Castrellon, Scott F Perkins, Ronald L Cowan, Daniel O Claassen, David H Zald
The fat mass and obesity associated gene (FTO) was the first gene identified by genome-wide association studies to correlate with higher body mass index (BMI) and increased odds of obesity. FTO remains the locus with the largest and most replicated effect on body weight, but the mechanism whereby FTO affects body weight and the development of obesity is not fully understood. Here we tested whether FTO is associated with differences in food cravings and a key aspect of dopamine function that has been hypothesized to influence food reward mechanisms...
December 9, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/29228687/interactions-between-rasa2-cadm1-hif1an-gene-polymorphisms-and-body-fatness-with-breast-cancer-a-population-based-case-control-study-in-china
#4
Zheng Zhu, Zhimei Teng, Fränzel J B van Duijnhoven, Meihua Dong, Yun Qian, Hao Yu, Jie Yang, Renqiang Han, Jian Su, Wencong Du, Xingyu Huang, Jinyi Zhou, Xiaojin Yu, Ellen Kampman, Ming Wu
Genome-wide association studies (GWAS) have indicated that gene polymorphisms in alleles of RAS p21 protein activator 2 (RASA2), cell adhesion molecule 1 (CADM1) and hypoxia inducible factor 1 alpha subunit inhibitor (HIF1AN) are associated with the risk of obesity. In this study, we explored the interactions between candidate SNPs of RASA2 (rs16851483), CADM1 (rs12286929) and HIF1AN (rs17094222) and body fatness for breast cancer risk. Unconditional logistic regression models were applied to measure the associations of related factors with breast cancer by odds ratios (ORs) and 95% confidence intervals (CIs)...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29223308/what-we-have-lost-mastitis-resistance-in-holstein-friesians-and-in-a-local-cattle-breed
#5
Giulio Curone, Joel Filipe, Paola Cremonesi, Erminio Trevisi, Massimo Amadori, Claudia Pollera, Bianca Castiglioni, Lauretta Turin, Vittorio Tedde, Daniele Vigo, Paolo Moroni, Andrea Minuti, Valerio Bronzo, M Filippa Addis, Federica Riva
In Holstein Friesian dairy cows, selective pressure for increased milk production has led to a higher propensity to disease, including mastitis, when compared to less selected and lower producing dairy breeds. The biology underpinning the higher resistance to disease of such "local breeds" is not fully understood. With the aim of investigating the factors associated to this phenomenon, we applied a multidisciplinary approach to compare innate immune response patterns, metabolic parameters, milk protein profiles and the milk microbiota in Holstein Friesian and Rendena cows reared in the same farm and under the same management conditions...
November 29, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/29221916/dna-methylation-signatures-at-endoplasmic-reticulum-stress-genes-are-associated-with-adiposity-and-insulin-resistance
#6
Omar Ramos-Lopez, Jose I Riezu-Boj, Fermin I Milagro, J Alfredo Martinez
A sustained activation of the unfolded protein response and the subsequent endoplasmic reticulum (ER) stress has been involved in the onset and severity of several metabolic diseases. The aim of this study was to analyze the association of DNA methylation signatures at ER stress genes with adiposity traits and related metabolic disorders. An epigenomic analysis within the Methyl Epigenome Network Association (MENA) project was conducted in an adult population (n=474). DNA methylation status in peripheral white blood cells was analyzed by a microarray approach...
November 28, 2017: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29212073/age-induced-changes-in-white-brite-and-brown-adipose-depots-a-mini-review
#7
Markus Schosserer, Johannes Grillari, Christian Wolfrum, Marcel Scheideler
Aging is a time-related process of functional decline at organelle, cellular, tissue, and organismal level that ultimately limits life. Cellular senescence is a state of permanent growth arrest in response to stress and one of the major drivers of aging and age-related disorders. Senescent cells accumulate with age, and removal of these cells delays age-related disorders in different tissues and prolongs healthy lifespan. One of the most studied aging mechanisms is the accumulation of reactive oxygen species damage in cells, organs, and organisms over time...
December 7, 2017: Gerontology
https://www.readbyqxmd.com/read/29198236/acetate-alters-the-process-of-lipid-metabolism-in-rabbits
#8
C Fu, L Liu, F Li
An experiment was conducted to investigate the effect of acetate treatment on lipid metabolism in rabbits. New Zealand Rabbits (30 days, n=80) randomly received a subcutaneous injection (2 ml/injection) of 0, 0.5, 1.0 or 2.0 g/kg per day body mass acetate (dissolved in saline) for 4 days. Our results showed that acetate induced a dose-dependent decrease in shoulder adipose (P0.05), acetate treatment significantly decreased the plasma adiponectin, insulin and triglyceride concentrations (P<0.05). In adipose, acetate injection significantly up-regulated the gene expression of peroxisome proliferator-activated receptor gamma (PPARγ), CCAAT/enhancer-binding protein α (C/EBPα), differentiation-dependent factor 1 (ADD1), adipocyte protein 2 (aP2), carnitine palmitoyltransferase 1 (CPT1), CPT2, hormone-sensitive lipase (HSL), G protein-coupled receptor (GPR41), GPR43, adenosine monophosphate-activated protein kinase α1 (AMPKα1), adiponectin receptor (AdipoR1), AdipoR2 and leptin receptor...
December 4, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29197093/the-association-between-irisin-and-muscle-metabolism-in-different-thyroid-disorders
#9
Ariadna Zybek-Kocik, Nadia Sawicka-Gutaj, Ewelina Szczepanek-Parulska, Mirosław Andrusiewicz, Joanna Waligórska-Stachura, Piotr Białas, Tomasz Krauze, Przemysław Guzik, Jerzy Skrobisz, Marek Ruchała
BACKGROUND: Irisin is a new adipo-myokine, encoded by the FNDC5 gene. Currently, there is a discussion regarding the relation between thyroid function and irisin concentration. This prospective study assesses the influence of thyrometabolic changes on serum irisin concentration in association with altered muscle metabolism. This is performed on a large cohort of patients affected by severe hypo- or hyperthyroidism, as well as by the expression of the FNDC5 gene in thyroid tissue affected by different pathologies...
December 2, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/29193738/cooperative-role-of-the-glp-1-receptor-and-%C3%AE-3-adrenergic-mediated-signaling-on-fat-mass-reduction-through-the-down-regulation-of-pka-akt-ampk-signaling-in-the-adipose-tissue-and-muscle-of-rats
#10
Juan Decara, Patricia Rivera, Sergio Arrabal, Antonio Vargas, Antonia Serrano, Francisco Javier Pavón, Carlos Dieguez, Rubén Nogueiras, Fernando Rodríguez de Fonseca, Juan Suárez
AIM: To explore the cooperation of GLP-1 receptor and β3-adrenergic receptor-mediated signaling in the control of fat mass/feeding behavior by studying the effects of a combined therapy composed of the GLP-1R agonist liraglutide and the β3-AR agonist CL316243. METHODS: The study included the analysis of key mechanisms regulating lipid/cholesterol metabolism, and thermogenesis in brown (BAT) and epididymal white (eWAT) adipose tissues, abdominal muscle and liver of male rats...
November 28, 2017: Acta Physiologica
https://www.readbyqxmd.com/read/29192516/knockdown-of-angiopoietin-like-2-mimics-the-benefits-of-intermittent-fasting-on-insulin-responsiveness-and-weight-loss
#11
Cécile Martel, Anthony Pinçon, Alexandre Maxime Bélanger, Xiaoyan Luo, Marc-Antoine Gillis, Olivia de Montgolfier, Nathalie Thorin-Trescases, Éric Thorin
Angiopoietin-like 2 (ANGPTL2) is an inflammatory adipokine linking obesity to insulin resistance. Intermittent fasting, on the other hand, is a lifestyle intervention able to prevent obesity and diabetes but difficult to implement and maintain. Our objectives were to characterize a link between ANGPTL2 and intermittent fasting and to investigate whether the knockdown of ANGPTL2 reproduces the benefits of intermittent fasting on weight gain and insulin responsiveness in knockdown and wild-type littermates mice...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29174029/interrelationship-of-the-rs7903146-tcf7l2-gene-variant-with-measures-of-glucose-metabolism-and-adiposity-the-neo-study
#12
R Noordam, C P A Zwetsloot, R de Mutsert, D O Mook-Kanamori, H J Lamb, A de Roos, E J P de Koning, F R Rosendaal, K Willems van Dijk, D van Heemst
BACKGROUND AND AIMS: We investigated the interrelationship of rs7903146-T in TCF7L2 with measures of glucose metabolism and measures of adiposity. METHODS AND RESULTS: This cross-sectional analysis was conducted in 5744 middle-aged participants (mean (standard deviation [SD]) age is 55.9 (6.0) years) from the Netherlands Epidemiology of Obesity (NEO) Study. Associations between rs7903146-T and Type 2 diabetes mellitus (T2D) were assessed with logistic regression...
October 18, 2017: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/29167640/visceral-fat-dysfunctions-in-the-rat-social-isolation-model-of-psychosis
#13
Stefania Schiavone, Giulia M Camerino, Emanuela Mhillaj, Margherita Zotti, Marilena Colaianna, Angelo De Giorgi, Antonello Trotta, Francesco P Cantatore, Elena Conte, Maria Bove, Paolo Tucci, Maria G Morgese, Luigia Trabace
Medication with neuroleptics has been associated with adipose tissue dysfunctions and, in particular, with increased visceral fat amount. However, several studies suggested that antipsychotic treatment might not be the main responsible of fat mass accumulation, as this has been also described in not treated psychotic patients. One of the most used "drug-free" rodent models of psychosis is the social isolation rearing of young adult rats, which provides a non-pharmacologic method of inducing long-term alterations reminiscent of symptoms seen in psychotic patients...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29163218/exosomes-and-metabolic-function-in-mice-exposed-to-alternating-dark-light-cycles-mimicking-night-shift-work-schedules
#14
Abdelnaby Khalyfa, Valeriy A Poroyko, Zhuanhong Qiao, Alex Gileles-Hillel, Ahamed A Khalyfa, Mahzad Akbarpour, Isaac Almendros, Ramon Farré, David Gozal
Sleep is an important modulator of metabolic function. Disruptions of sleep in circadian rhythm are common in modern societies and are associated with increased risk of developing cardiometabolic disorders. Exosomes are ubiquitous extracellular vesicles that may play a mechanistic role in metabolic derangements. We hypothesized that alternating dark-light cycles mimicking shift work in mice would alter fecal microbiota and colonic epithelium permeability and alter plasma exosome cargo and metabolic function...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29161908/an-exploration-of-the-determinants-of-gestational-weight-gain-in-african-american-women-genetic-factors-and-energy-expenditure
#15
Ying Meng, Susan W Groth, Patricia Stewart, Joyce A Smith
BACKGROUND: Excessive gestational weight gain (GWG) has a long-term impact on women's body weight and contributes to the development of obesity in the mother and her child. Many risk factors for GWG have been identified, but to date, only 6-33.8% of the variance in GWG has been explained. The purpose of this study was to evaluate the overall variance of GWG that can be explained by including weight-adjusted resting metabolic rate (aRMR) and a genetic risk score constructed on obesity-related genes in addition to sociodemographic and lifestyle factors...
January 1, 2017: Biological Research for Nursing
https://www.readbyqxmd.com/read/29161229/sex-and-dose-specific-effects-of-maternal-bisphenol-a-exposure-on-pancreatic-islets-of-first-and-second-generation-adult-mice-offspring
#16
Amita Bansal, Cetewayo Rashid, Frances Xin, Changhong Li, Erzsebet Polyak, Anna Duemler, Tom van der Meer, Martha Stefaniak, Sana Wajid, Nicolai Doliba, Marisa S Bartolomei, Rebecca A Simmons
BACKGROUND: Exposure to the environmental endocrine disruptor bisphenol A (BPA) is ubiquitous and associated with the increased risk of diabetes and obesity. However, the underlying mechanisms remain unknown. We recently demonstrated that perinatal BPA exposure is associated with higher body fat, impaired glucose tolerance, and reduced insulin secretion in first- (F1) and second-generation (F2) C57BL/6J male mice offspring. OBJECTIVE: We sought to determine the multigenerational effects of maternal bisphenol A exposure on mouse pancreatic islets...
September 27, 2017: Environmental Health Perspectives
https://www.readbyqxmd.com/read/29155267/chronic-subcutaneous-infusion-of-neurosecretory-protein-gm-increases-body-mass-gain-in-chicks
#17
Kenshiro Shikano, Shusuke Taniuchi, Eiko Iwakoshi-Ukena, Megumi Furumitsu, George E Bentley, Lance J Kriegsfeld, Kazuyoshi Ukena
Recently we discovered a small hypothalamic protein in the chicken, named neurosecretory protein GL (NPGL), which is associated with body growth and energy metabolism in birds and rodents. Genome database analysis suggested that the NPGL gene has a paralogous gene in vertebrates, named neurosecretory protein GM (NPGM). However, the biological action of NPGM remains unclear. In this study, we investigated whether NPGM affects body growth in chicks. We found that subcutaneous infusion of NPGM for six days increased body mass gain in a dose-dependent manner...
November 16, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29152131/microrna-130b-attenuates-dexamethasone-induced-increase-of-lipid-accumulation-in-porcine-preadipocytes-by-suppressing-ppar-%C3%AE-expression
#18
Shifeng Pan, Yixin Cui, Xuan Dong, Tangjie Zhang, Hua Xing
In this study, two experiments were conducted to determine the role of miR-130b in dexamethasone (DEX)-induced lipid accumulation. Porcine preadipocytes were treated with 10(-6) M DEX for 48 h to investigate effects of DEX in lipid accumulation. Next, in order to illustrate the regulatory role of miR-130b on lipid accumulation induced by DEX, miRNA scrambled control (miR-SC), miR-130b overexpression plasmid and miR-130b inhibitor were respectively transfected into porcine preadipocytes at 24 h before DEX treatment for 48 h (miR-SC-DEX, miR-130b-DEX and miR-130b-inhibitor-DEX)...
October 20, 2017: Oncotarget
https://www.readbyqxmd.com/read/29138472/functional-characterization-of-the-ucp1-associated-oxidative-phenotype-of-human-epicardial-adipose-tissue
#19
Kanta Chechi, Pierre Voisine, Patrick Mathieu, Mathieu Laplante, Sébastian Bonnet, Frédéric Picard, Philippe Joubert, Denis Richard
Brown fat presence and metabolic activity has been associated with lower body mass index, higher insulin sensitivity and better cardiometabolic profile in humans. We, and others, have previously reported the presence of Ucp1, a marker of brown adipocytes, in human epicardial adipose tissue (eAT). Characterization of the metabolic activity and associated physiological relevance of Ucp1 within eAT, however, is still awaited. Here, we validate the presence of Ucp1 within human eAT and its 'beige' nature. Using in-vitro analytical approaches, we further characterize its thermogenic potential and demonstrate that human eAT is capable of undergoing enhanced uncoupling respiration upon stimulation...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29130706/androgen-receptor-gene-polymorphisms-and-maximal-fat-oxidation-in-healthy-men-a-longitudinal-study
#20
Jesús Gustavo Ponce González, Amelia Guadalupe-Grau, Francisco Germán Rodríguez-González, Rafael Torres-Peralta, David Morales-Alamo, Lorena Rodríguez-García, Bonifacio Nicolás Díaz-Chico, José Antonio López Calbet, Cecilia Dorado
INTRODUCTION: Androgens play a major role in fat oxidation; however, the effects of androgens depend, among other factors, on the intrinsic characteristics of the androgen receptor (AR). Lower repetitions of CAG and GGN polymorphism appear to have a protective effect on fat accumulation in the transition from adolescent to mid-twenties. Whether a similar protective effect is present later in life remains unknown. The aims of this study were: a) to evaluate if extreme CAG and GGN repeat polymorphisms of the androgen receptors influence body fat mass, its regional distribution, resting metabolic rate (RMR), maximal fat oxidation capacity (MFO) and serum leptin, free testosterone and osteocalcin in healthy adult men; and b) to determine the longitudinal effects on fat tissue accumulation after 6...
October 24, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
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