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Fat mass and obesity associated gene

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https://www.readbyqxmd.com/read/28636007/analysis-of-association-of-gene-variants-with-obesity-traits-in-new-zealand-european-children-at-6-years-of-age
#1
Mohanraj Krishnan, John M D Thompson, Edwin A Mitchell, Rinki Murphy, Lesley M E McCowan, Andrew N Shelling, G On Behalf Of The Children Of Scope Study Group
Childhood obesity is a public health problem, which is associated with a long-term increased risk of cardiovascular disease and premature mortality. Several gene variants have previously been identified that have provided novel insights into biological factors that contribute to the development of obesity. As obesity tracks through childhood into adulthood, identification of the genetic factors for obesity in early life is important. The objective of this study was to identify putative associations between genetic variants and obesity traits in children at 6 years of age...
June 21, 2017: Molecular BioSystems
https://www.readbyqxmd.com/read/28626215/genetic-variation-in-the-obesity-gene-fto-is-not-associated-with-decreased-fat-oxidation-the-neo-study
#2
L L Blauw, R Noordam, S Trompet, J F P Berbée, F R Rosendaal, D van Heemst, K W van Dijk, D O Mook-Kanamori, R de Mutsert, P C N Rensen
BACKGROUND: The FTO gene harbours the strongest common genetic variant associated with obesity. Recently, rs1421085-T to -C substitution mapped in FTO was shown to induce a developmental shift of human adipocytes from an energy-combusting beige to an energy-storing white phenotype in vitro. As browning of adipocytes selectively enhances fat oxidation (FatOx), we hypothesized that rs1421085-C in FTO is associated with deceased FatOx compared with carbohydrate oxidation (CarbOx) and an increased respiratory quotient (RQ)...
June 19, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28626026/protein-kinase-c%C3%AE-activates-fat-mass-and-obesity-associated-protein-by-influencing-its-ubiquitin-proteasome-degradation
#3
Haoran Tai, Xiaobo Wang, Jiao Zhou, Xiaojuan Han, Tingting Fang, Hui Gong, Ning Huang, Honghan Chen, Jianqiong Qin, Ming Yang, Xiawei Wei, Li Yang, Hengyi Xiao
PKCβ is a serine-threonine kinase associated with obesity and diabetic complications; its activation contributes to weight gain, and deletion of its gene results in resistance to genetic- and diet-induced obesity. Fat mass and obesity-associated (FTO) protein is a recently identified RNA demethylase, and its overexpression in mice leads to increased body weight as well as fat mass. Although sharing some features in anabolism regulation, PKCβ and FTO have not been investigated together; therefore, their relationship has not been established...
June 16, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28619249/metabolism-of-sex-steroids-is-influenced-by-acquired-adiposity-a-study-of-young-adult-male-monozygotic-twin-pairs
#4
Veera Vihma, Jussi Naukkarinen, Ursula Turpeinen, Esa Hämäläinen, Jaakko Kaprio, Aila Rissanen, Sini Heinonen, Antti Hakkarainen, Jesper Lundbom, Nina Lundbom, Tomi S Mikkola, Matti J Tikkanen, Kirsi H Pietiläinen
Obesity and ageing are associated with lower serum testosterone levels in men. How fat distribution or adipose tissue metabolism, independent of genetic factors and age, are related to sex steroid metabolism is less clear. We studied the associations between adiposity and serum sex hormone concentrations, and mRNA expression of genes regulating sex hormone metabolism in adipose tissue in young adult male monozygotic (MZ) twin pairs. The subjects [n=18 pairs; mean age, 32 years; individual body mass indexes (BMIs) 22-36kg/m(2)] included 9 male MZ twin pairs discordant for BMI [intra-pair difference (Δ) in BMI ≥3kg/m(2)]...
June 12, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28607773/fto-gene-associates-and-interacts-with-obesity-risk-physical-activity-energy-intake-and-time-spent-sitting-pilot-study-in-a-nigerian-population
#5
Bolaji Fatai Oyeyemi, Charles Ayorinde Ologunde, Ayonposi Bukola Olaoye, Nanfizat Abiket Alamukii
Fat mass and obesity-associated (FTO) gene influences obesity but studies have shown that environmental/lifestyle variables like physical activity (PA), time spent sitting (TSS), and energy intake might mediate the effect. However, this is poorly understood in Nigeria due to scarce studies. We demystified association and interaction between FTO rs9939609, obesity, PA, TSS, and energy intake in Nigeria. FTO gene variant was genotyped by restriction fragment length polymorphism and gene sequencing analysis in 103 people with obesity and 98 controls...
2017: Journal of Obesity
https://www.readbyqxmd.com/read/28607568/review-of-studies-on-the-fat-mass-and-obesity-associated-fto-gene-interactions-with-environmental-factors-affecting-on-obesity-and-its-impact-on-lifestyle-interventions
#6
REVIEW
Naser Kalantari, Saeid Doaei, Nastaran Keshavarz-Mohammadi, Maryam Gholamalizadeh, Naeimeh Pazan
BACKGROUND: The prevalence of obesity is influenced by environmental and genetic factors. Recently, it has been reported that an interaction between genotype and environmental factors can affect each other's effects on the phenotype. The purpose of this study is to evaluate the recent studies on the fat mass and obesity-associated (FTO) gene interactions with environmental factors affecting on obesity and the impact of these interactions on the success level of the lifestyle intervention...
November 2016: ARYA Atherosclerosis
https://www.readbyqxmd.com/read/28603074/fto-gene-polymorphisms-rs9939609-and-rs17817449-as-predictors-of-type-2-diabetes-mellitus-in-obese-iraqi-population
#7
Laith A Younus, Abdul Hussein A Algenabi, Mohammed S Abdul-Zhara, Majid K Hussein
BACKGROUND: The variation of the SNPs in FTO (fat mass and obesity associated) gene are improved to be associated with obesity and type 2 diabetes (T2DM) in some ethnic groups for example in European while, this consistency is controversial in Asians and there were few studies in Iraqi population about the effect of this gene on the development of T2DM in obese patients. Therefore, the objective of this study is to investigate the impact of the two common FTO gene variants in the development of T2DM in obese Iraqi patients...
June 8, 2017: Gene
https://www.readbyqxmd.com/read/28601987/the-association-of-snp276g-t-at-adiponectin-gene-with-insulin-resistance-and-circulating-adiponectin-in-morbid-obese-patients-after-a-biliopancreatic-diversion-surgery
#8
Daniel Antonio de Luis, David Pacheco, D Primo, Olatz Izaola, R Aller
BACKGROUND: The effects of rs1501299 variant of ADIPO gene on weight loss after bariatric surgery have not been evaluated. We decided to investigate the role of this genetic variant on anthropometric and biochemical outcomes such as serum adiponectin levels after biliopancreatic diversion (BPD) surgery in morbidly obese patients during 3 years. MATERIAL AND METHODS: A sample of 64 patients with morbid obesity without diabetes mellitus was operated. Biochemical and anthropometric evaluation were realized at basal visit and at each visit during 3 years (1, 2, and 3 years)...
June 11, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28599470/the-lipid-metabolism-gene-fto-influences-breast-cancer-cell-energy-metabolism-via-the-pi3k-akt-signaling-pathway
#9
Yazhuo Liu, Ruoyu Wang, Lichuan Zhang, Jianhua Li, Keli Lou, Bingyin Shi
The present study assessed the effect of the lipid metabolism, fat mass and the obesity-associated gene (FTO), on energy metabolism of breast cancer cells. The human breast cancer cell lines, MCF-7 and MDA-MB-231, and HCC1937 human breast cells were studied. Real-time PCR was used to measure the levels of FTO mRNA from breast cancer cells and normal breast cells. MDA-MB-231 cells were transfected with miFTO inhibitor or inhibitor control, and cells were assessed for levels of lactic acid, ATP, pyruvate kinase activity, and hexokinase activity assay using specific kits...
June 2017: Oncology Letters
https://www.readbyqxmd.com/read/28595187/rs10767664-gene-variant-in-brain-derived-neurotrophic-factor-is-associated-with-diabetes-mellitus-type-2-in-caucasian-females-with-obesity
#10
Daniel Antonio de Luis, Rocío Aller, Olatz Izaola, David Primo, Enrique Romero
BACKGROUND: The role of brain-derived neurotrophic factor (BDNF) variants on diabetes prevalence, basal adipokine levels, body weight, and cardiovascular risk factors remains unclear in obese patients. OBJECTIVE: This study is aimed at analyzing the effects of rs10767664 BDNF gene polymorphism on diabetes mellitus prevalence, body weight, cardiovascular risk factors, and serum adipokine levels in obese female patients. DESIGN: A total of 507 obese women were enrolled in a prospective way...
June 9, 2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28591216/modification-effects-of-genetic-polymorphisms-in-fto-il-6-and-hspd1-on-the-associations-of-diabetes-with-breast-cancer-risk-and-survival
#11
Rui-Mei Zhu, Wei Lin, Wei Zhang, Jun-Ting Ren, Yi Su, Jian-Rong He, Ying Lin, Feng-Xi Su, Xiao-Ming Xie, Lu-Ying Tang, Ze-Fang Ren
The contribution of diabetes to breast cancer remains uncertain among Chinese females, which may result from different genetic factors. We evaluated the associations of diabetes, combined with the polymorphisms in the genes of fat mass and obesity-associated gene (FTO), interleukin 6 (IL-6), and heat shock protein 60 (HSPD1), with breast cancer risk and survival in a Chinese Han population. The information on the history of diabetes was collected from 1551 incident breast cancer cases and 1605 age-frequency matched controls in Guangzhou, China...
2017: PloS One
https://www.readbyqxmd.com/read/28585683/the-age-of-developing-diabetes-and-fto-polymorphisms-rs9939609-rs1421085-and-rs9930506
#12
Władysław Grzeszczak, Maciej Molsa, Marek Tłuczykont, Anna Markowicz, Ryszard Swoboda, Marta Biedak, Anna Kałuża, Sebastian Sirek, Krzysztof Strojek
INTRODUCTION: Type 2 diabetes (T2DM) is a common complex metabolic disorder that has a strong genetic predisposition. Fat mass and obesity-associated protein (FTO) is one of the genes of interest to us. Hypomethylation of a CpG site in the FTO gene was significantly associated with the risk of T2DM. The aim of the study was to find the answer to the question of whether the polymorphism changes of the FTO gene in the pathogenesis of type 2 diabetes are comparable in young, middle aged, and elderly people...
June 6, 2017: Endokrynologia Polska
https://www.readbyqxmd.com/read/28580280/rasal2-deficiency-reduces-adipogenesis-and-occurrence-of-obesity-related-disorders
#13
Xiaoqiang Zhu, Simin Xie, Tian Xu, Xiaohui Wu, Min Han
OBJECTIVE: Identification of additional regulatory factors involved in the onset of obesity is important to understand the mechanisms underlying this prevailing disease and its associated metabolic disorders and to develop therapeutic strategies. Through isolation and analysis of a mutant, we aimed to uncover the function of a Ras-GAP gene, Rasal2 (Ras protein activator like 2), in the development of obesity and related metabolic disorders and to obtain valuable insights regarding the mechanism underlying the function...
June 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28570438/surgically-induced-changes-in-gut-microbiome-and-hedonic-eating-as-related-to-weight-loss-preliminary-findings-in-obese-women-undergoing-bariatric-surgery
#14
Claudia P Sanmiguel, Jonathan Jacobs, Arpana Gupta, Tiffany Ju, Jean Stains, Kristen Coveleskie, Venu Lagishetty, Anna Balioukova, Yijun Chen, Erik Dutson, Emeran Mayer, Jennifer S Labus
OBJECTIVE: Weight-loss surgery results in significant changes in the anatomy, function and intraluminal environment of the gastrointestinal tract affecting the gut microbiome. While bariatric surgery results in sustained weight loss, decreased appetite and hedonic eating; it is unknown if the surgery-induced alterations in gut microbiota play a role in the observed changes in hedonic eating. We explored the following hypotheses 1) Laparoscopic sleeve gastrectomy results in changes in gut microbial composition ; 2) Alterations in gut microbiota are related to weight loss; 3) Alterations in gut microbiome are associated with changes in appetite and hedonic eating...
May 30, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28566238/correlation-of-resistin-serum-level-with-fat-mass-and-obesity-associated-gene-fto-rs9939609-polymorphism-in-obese-women-with-type-2-diabetes
#15
Maryam Abbasi Majdi, Naser Aga Mohammadzadeh, Hajie Lotfi, Rasoul Mahmoudi, Farzaneh Ghafarian Alipour, Fatemeh Shool, Mehdi Niknam Moghanloo, Sadeg Porfaraj, Nosratollah Zarghami
AIMS: The aim of this study was to detect any association of fat mass and obesity-associated (FTO) rs9939609 variant to metabolic and anthropometric parameters and resistin level as adipokines in Iranian obese women with type 2 diabetes mellitus. MATERIAL AND METHODS: Totally, 42 diabetic and 36 non-diabetic women were selected. The PCR amplicons of FTO gene were sequenced and metabolic, anthropometric parameters and resistin level were measured. RESULTS: Serum resistin concentrations were not different between diabetic and non-diabetic subjects (p>0...
May 13, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/28559893/upregulation-of-early-and-downregulation-of-terminal-pathway-complement-genes-in-subcutaneous-adipose-tissue-and-adipocytes-in-acquired-obesity
#16
Sanna Kaye, A Inkeri Lokki, Anna Hanttu, Eija Nissilä, Sini Heinonen, Antti Hakkarainen, Jesper Lundbom, Nina Lundbom, Lilli Saarinen, Olli Tynninen, Maheswary Muniandy, Aila Rissanen, Jaakko Kaprio, Seppo Meri, Kirsi H Pietiläinen
Inflammation is an important mediator of obesity-related complications such as the metabolic syndrome but its causes and mechanisms are unknown. As the complement system is a key mediator of inflammation, we studied whether it is activated in acquired obesity in subcutaneous adipose tissue (AT) and isolated adipocytes. We used a special study design of genetically matched controls of lean and heavy groups, rare monozygotic twin pairs discordant for body mass index (BMI) [n = 26, within-pair difference (Δ) in body mass index, BMI >3 kg/m(2)] with as much as 18 kg mean Δweight...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28559540/rs9939609-fto-genotype-associations-with-fto-methylation-level-influences-body-mass-and-telomere-length-in-an-australian-rural-population
#17
Y Zhou, D Simmons, D Lai, B D Hambly, C S McLachlan
BACKGROUND: the fat mass- and obesity-associated (FTO) gene influences energy homeostasis in humans. While the obesity-related variant, rs9939609 has been replicated across a number of cohort studies, there remain significant variance and a low modest association. Telomere length is another commonly reported obesity risk factor. We hypothesize understanding the associations between FTO rs9939609 with FTO methylation and telomere length will provide a more accurate assessment of obesity risk...
May 31, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28555011/the-il-6-gene-promoter-snp-and-plasma-il-6-in-response-to-diet-intervention
#18
Brinda K Rana, Shirley W Flatt, Dennis D Health, Bilge Pakiz, Elizabeth L Quintana, Loki Natarajan, Cheryl L Rock
We recently reported that interleukin-6 (IL-6), an inflammatory marker associated with breast pathology and the development of breast cancer, decreases with diet intervention and weight loss in both insulin-sensitive and insulin-resistant obese women. Here, we tested whether an individual's genotype at an IL6 SNP, rs1800795, which has previously been associated with circulating IL-6 levels, contributes to changes in IL-6 levels or modifies the effect of diet composition on IL-6 in these women. We genotyped rs1800795 in overweight/obese women (N = 242) who were randomly assigned to a lower fat (20% energy), higher carbohydrate (65% energy) diet; a lower carbohydrate (45% energy), higher fat (35% energy) diet; or a walnut-rich (18% energy), higher fat (35% energy), lower carbohydrate (45% energy) diet in a 1-year weight loss intervention study of obesity-related biomarkers for breast cancer incidence and mortality...
May 27, 2017: Nutrients
https://www.readbyqxmd.com/read/28547937/lack-of-association-of-the-fat-mass-and-obesity-associated-fto-gene-rs9939609-polymorphism-with-breast-cancer-risk-a-systematic-review-and-meta-analysis-based-on-case-control-studies
#19
Jamal Jafari Nedooshan, Saeed Kargar, Hossein Neamatzadeh, Fatemeh Haghighi, Reihaneh Dehghani Mohammad Abadi, Niloofar Seddighi
Background: Previously published data on any association of the fat mass and obesity-associated (FTO) gene with breast cancer risk remain inconclusive. Therefore, we conducted the present meta-analysis of links between breast cancer and the FTO rs9939609 polymorphism. Methods: We have conducted a systematic review of the English literature by searching PubMed, Google Scholar and ISI Web of Knowledge databases for studies on associations between the FTO rs9939609 polymorphism and breast cancer risk. Crude odds ratios (ORs) with 95% confidence intervals (CIs) were calculated to estimate the strength of the association using fixed- or random-effects model...
April 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28544394/muscle-metabolic-alterations-induced-by-genetic-ablation-of-4e-bp1-and-4e-bp2-in-response-to-diet-induced-obesity
#20
Olivier Le Bacquer, Kristell Combe, Christophe Montaurier, Jérôme Salles, Christophe Giraudet, Véronique Patrac, Carla Domingues-Faria, Christelle Guillet, Katie Louche, Yves Boirie, Nahum Sonenberg, Cédric Moro, Stéphane Walrand
SCOPE: In recent years, several studies reported the role of eIF4E-binding proteins (4E-BPs) on the development of diet-induced obesity and insulin resistance. Our aim was to investigate the effect of 4E-BP protein deletion on lipid accumulation and metabolism in skeletal muscle in response to a high fat diet-induced obesity in 4E-BP1/2 DKO mice. METHODS AND RESULTS: Diet-induced obesity engendered increased ectopic accumulation of lipotoxic species in skeletal muscle of 4E-BP1 and 4E-BP2 double-knockout mice (4E-BP1/2 DKO), namely diacylglycerols and ceramides...
May 21, 2017: Molecular Nutrition & Food Research
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