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https://www.readbyqxmd.com/read/29771336/fto-is-a-transcriptional-repressor-to-auto-regulate-its-own-gene-and-potentially-associated-with-homeostasis-of-body-weight
#1
Shu-Jing Liu, Hui-Ling Tang, Qian He, Ping Lu, Tao Fu, Xu-Ling Xu, Tao Su, Mei-Mei Gao, Shumin Duan, Yan Luo, Yue-Sheng Long
Fat mass and obesity-associated (FTO) protein is a ferrous ion (Fe2+)/2-oxoglutarate (2-OG)-dependent demethylase preferentially catalyzing m6A sites in RNA. The FTO gene is highly expressed in the hypothalamus with fluctuation in response to various nutritional conditions, which is believed to be involved in the control of whole body metabolism. However, the underlying mechanism in response to different nutritional cues remains poorly understood. Here we show that ketogenic diet-derived ketone body β-hydroxybutyrate (BHB) transiently increases FTO expression in both mouse hypothalamus and cultured cells...
May 16, 2018: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/29766417/the-fto-gene-is-associated-with-growth-and-omega-3-6-ratio-in-asian-seabass
#2
Fei Sun, Rongjian Tu, Jun Hong Xia, Xiao Jun Liu, Gen Hua Yue
Polymorphisms in the FTO gene are associated with obesity and body mass index in humans and livestock. Little information of whether FTO plays an important role in aquaculture fish species is available. We cloned and characterized the FTO gene in an economically important food fish species: Asian seabass (Lates calcarifer). The full-length cDNA of the gene is 3679 bp, containing an ORF of 1935 bp encoding 644 amino acids, a 216 bp 5' UTR and a 1538 bp 3' UTR. The gene consisted of nine exons and eight introns and was 117,679 bp in length...
May 16, 2018: Marine Biotechnology
https://www.readbyqxmd.com/read/29729018/the-role-of-dynamic-m-6-a-rna-methylation-in-photobiology
#3
Myles Robinson, Palak Shah, Yanhong Cui, Yu-Ying He
N6 -methyladenosine (m6 A) is the most abundant internal RNA modification among numerous post-transcriptional modifications identified in eukaryotic mRNA. m6 A modification of RNA is catalyzed by the "writer" m6 A methyltransferase enzyme complex, consisting of METTL3, METTL14, WTAP, and KIAA1429. The m6 A modification is reversible, and can be removed by "eraser" m6 A demethylase enzymes, namely, FTO and ALKBH5. The biological function of m6 A modification on RNA is carried out by RNA-binding effector proteins called "readers"...
May 4, 2018: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29717269/multiple-genetic-variations-confer-risks-for-obesity-and-type-2-diabetes-mellitus-in-arab-descendants-from-uae
#4
Wael Osman, Guan K Tay, Habiba Alsafar
BACKGROUND: The United Arab Emirates (UAE) is one of the countries most threatened with obesity. Here we investigated associations between hundreds of single-nucleotide polymorphisms (SNPs) and the following obesity indicators: body mass index (BMI), waist circumference (WC), and height. We also investigated the associations between obesity-related genes with type 2 diabetes mellitus (T2DM). METHODS: We tested 87, 58, and 586 SNPs in a previous genome-wide significance level for associations with BMI (n = 880), WC (n = 455), and height (n = 897), respectively...
March 12, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29677190/a-haplotype-of-three-snps-in-fto-had-a-strong-association-with-body-composition-and-bmi-in-iranian-male-adolescents
#5
Naser Kalantari, Nastaran Keshavarz Mohammadi, Pantea Izadi, Saeid Doaei, Maryam Gholamalizadeh, Hassan Eini-Zinab, Tuire Salonurmi, Shahram Rafieifar, Reza Janipoor, Ghasem Azizi Tabesh
BACKGROUND: Single-nucleotide polymorphisms (SNPs), which are located in the first intron of the FTO gene, are reported to be associated with body weight and the body mass index (BMI). However, their effects on anthropometric measurements in adolescents are poorly understood. OBJECTIVE: This study aimed to investigate the association of three adjacent polymorphisms (rs9930506, rs9930501, & rs9932754) in the FTO gene with anthropometric indices in Iranian adolescent males...
2018: PloS One
https://www.readbyqxmd.com/read/29675043/cardiovascular-risk-factors-after-childhood-cancer-treatment-are-independent-of-the-fto-gene-polymorphism
#6
Małgorzata Sawicka-Żukowska, Maryna Krawczuk-Rybak, Paweł Bernatowicz, Katarzyna Muszyńska-Rosłan, Jerzy Konstantynowicz, Włodzimierz Łuczyński
The study objective was to assess the prevalence of cardiovascular disease risk factors in patients treated for childhood cancer ( N = 101) and to determine the involvement of clinical (cancer type and therapy) and/or genetic ( FTO gene rs9939609 polymorphism) factors. Anthropometric features, laboratory findings, and standardized osteodensitometric indices (fat and lean mass) were considered. Overweight/obesity was found in 17.82% of the patients; however, central adiposity was found in as many as 42.5%. At least one abnormality in lipid metabolism was observed in 35...
2018: International Journal of Endocrinology
https://www.readbyqxmd.com/read/29657248/association-of-fat-mass-and-obesity-associated-and-retinitis-pigmentosa-guanosine-triphosphatase-gtpase-regulator-interacting-protein-1-like-polymorphisms-with-body-mass-index-in-chinese-women
#7
Boyu Chen, Zhiqiang Li, Jianhua Chen, Jue Ji, Jingyi Shen, Yufeng Xu, Yingying Zhao, Danping Liu, Yinhuan Shen, Weijie Zhang, Jiawei Shen, Yonggang Wang, Yongyong Shi
Body mass index (BMI) is the most commonly used quantitative measure of adiposity. It is a kind of complex genetic diseases which are caused by multiple susceptibility genes. The first intron of fat mass and obesity-associated (FTO) has been widely discovered to be associated with BMI. Retinitis pigmentosa GTPase regulator-interacting protein-1 like (RPGRIP1L) is located in the upstream region of FTO and has been proved to be linked with obesity through functional tests. We carried out a genetic association analysis to figure out the role of the FTO gene and the RPGRIP1L gene in BMI...
April 14, 2018: Endocrine Journal
https://www.readbyqxmd.com/read/29606151/fto-variant-is-not-associated-with-osteoarthritis-in-the-chinese-han-population-replication-study-for-a-genome-wide-association-study-identified-risk-loci
#8
Jin Dai, Pu Ying, Dongquan Shi, Huacheng Hou, Ye Sun, Zhihong Xu, Dongyang Chen, Guoqiang Zhang, Ming Ni, Huajian Teng, Yan Wang, Qing Jiang
BACKGROUND: Osteoarthritis is the most prevalent form of arthritis worldwide and is the major cause of pain and loss of function in elderly people. A signal of the fat mass and obesity-associated (FTO) gene had been reported in a genome-wide association study of osteoarthritis. The FTO polymorphism (rs8044769) might exert its effect on osteoarthritis through obesity, because it was reported as a body mass index-associated single-nucleotide polymorphism. And replication studies showed inconsistent results for this association...
April 2, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29548861/familial-aggregation-and-linkage-analysis-with-covariates-for-metabolic-syndrome-risk-factors
#9
Parisa Naseri, Soheila Khodakarim, Kamran Guity, Maryam S Daneshpour
BACKGROUND: Mechanisms of metabolic syndrome (MetS) causation are complex, genetic and environmental factors are important factors for the pathogenesis of MetS In this study, we aimed to evaluate familial and genetic influences on metabolic syndrome risk factor and also assess association between FTO (rs1558902 and rs7202116) and CETP(rs1864163) genes' single nucleotide polymorphisms (SNP) with low HDL_C in the Tehran Lipid and Glucose Study (TLGS). MATERIALS AND METHODS: The design was a cross-sectional study of 1776 members of 227 randomly-ascertained families...
March 14, 2018: Gene
https://www.readbyqxmd.com/read/29540276/higher-prevalence-of-fto-gene-risk-genotypes-aa-rs9939609-cc-rs1421085-and-gg-rs17817449-and-saliva-containing-staphylococcus-aureus-in-obese-women-in-croatia
#10
Ana Huđek, Lucija Škara, Barbara Smolkovič, Snježana Kazazić, Sanda Ravlić, Lucia Nanić, Martina Matovinović Osvatić, Jozo Jelčić, Ivica Rubelj, Višnja Bačun-Družina
Obesity is composed of multifunctional interactions of eating habits, behaviors, microbiota, genetics, and other unknown factors. We hypothesize that correlations occur between the fat mass and obesity-associated single nucleotide polymorphisms (FTO SNPs), the composition of microorganisms in the saliva, and life habits in obese women from Zagreb County. Our results of the analysis of 3 FTO SNPs showed a statistically significant positive correlation among the frequencies of the high-risk genotypes AA rs9939609 (P = ...
February 2018: Nutrition Research
https://www.readbyqxmd.com/read/29529147/fto-genotype-impacts-food-intake-and-corticolimbic-activation
#11
Susan J Melhorn, Mary K Askren, Wendy K Chung, Mario Kratz, Tyler A Bosch, Vidhi Tyagi, Mary F Webb, Mary Rosalynn B De Leon, Thomas J Grabowski, Rudolph L Leibel, Ellen A Schur
Background: Variants in the first intron of the fat mass and obesity-associated (FTO) gene increase obesity risk. People with "high-risk" FTO genotypes exhibit preference for high-fat foods, reduced satiety responsiveness, and greater food intake consistent with impaired satiety. Objective: We sought central nervous system mechanisms that might underlie impaired satiety perception in people with a higher risk of obesity based on their FTO genotype. Design: We performed a cross-sectional study in a sample that was enriched for obesity and included 20 higher-risk participants with the AA (risk) genotype at the rs9939609 locus of FTO and 94 lower-risk participants with either the AT or TT genotype...
February 1, 2018: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29525920/lack-of-association-between-fto-gene-variations-and-metabolic-healthy-obese-mho-phenotype-tehran-cardio-metabolic-genetic-study-tcgs
#12
Bahareh Sedaghati-Khayat, Maryam Barzin, Mahdi Akbarzadeh, Kamran Guity, Mohammad-Sadegh Fallah, Hoda Pourhassan, Fereidoun Azizi, Maryam S Daneshpour
BACKGROUND: Obesity is currently an international epidemic and metabolic derangements pose these individuals at greater risk for future morbidity and mortality. Genetics and environmental factors have undeniable effects and among genetic risk factors, FTO/CETP genes are important. The current study examines the interaction between obesity phenotypes and FTO/CETP SNPs and their effects on lipid profile changes. MATERIALS AND METHODS: We selected 954 adult subjects from TCGS (47...
March 10, 2018: Eating and Weight Disorders: EWD
https://www.readbyqxmd.com/read/29524577/kernel-machine-snp-set-analysis-provides-new-insight-into-the-association-between-obesity-and-polymorphisms-located-on-the-chromosomal-16q-12-2-region-tehran-lipid-and-glucose-study
#13
Niloufar Javanrouh, Maryam S Daneshpour, Ali Reza Soltanian, Leili Tapak
INTRODUCTION: Obesity is a serious health problem that leads to low quality of life and early mortality. To the purpose of prevention and gene therapy for such a worldwide disease, genome wide association study is a powerful tool for finding SNPs associated with increased risk of obesity. To conduct an association analysis, kernel machine regression is a generalized regression method, has an advantage of considering the epistasis effects as well as the correlation between individuals due to unknown factors...
March 7, 2018: Gene
https://www.readbyqxmd.com/read/29520227/disruption-of-accumbens-and-thalamic-white-matter-connectivity-revealed-by-diffusion-tensor-tractography-in-young-men-with-genetic-risk-for-obesity
#14
Gaia Olivo, Francesco Latini, Lyle Wiemerslage, Elna-Marie Larsson, Helgi B Schiöth
Background : Neurovascular coupling is associated with white matter (WM) structural integrity, and it is regulated by specific subtypes of dopaminergic receptors. An altered activity of such receptors, highly expressed in reward-related regions, has been reported in carriers of obesity-risk alleles of the fat mass and obesity associated ( FTO ) gene. Among the reward-related regions, the thalamus and the nucleus accumbens are particularly vulnerable to blood pressure dysregulation due to their peculiar anatomo-vascular characteristics, and have been consistently reported to be altered in early-stage obesity...
2018: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/29504848/signalling-pathways-identified-in-salivary-glands-from-primary-sj%C3%A3-gren-s-syndrome-patients-reveal-enhanced-adipose-tissue-development
#15
Lara A Aqrawi, Janicke Liaaen Jensen, Gunnvor Øijordsbakken, Ann-Kristin Ruus, Ståle Nygård, Marit Holden, Roland Jonsson, Hilde Kanli Galtung, Kathrine Skarstein
A characteristic feature of primary Sjögren's syndrome (pSS) is the destruction of salivary and lacrimal glands mediated by mononuclear cell infiltration. Adipocytes can also occupy a large portion of the salivary gland (SG) tissue area, although little is known about their significance in pSS. We have previously investigated adipose tissue infiltration in SG biopsies from pSS patients and non-SS sicca controls. Our findings indicated the distinct incidence of adipose tissue replacement in pSS patients, where adipocytes were detected in interleukin (IL) 6 rich regions...
May 2018: Autoimmunity
https://www.readbyqxmd.com/read/29502358/mettl3-regulates-alternative-splicing-of-myd88-upon-the-lipopolysaccharide-induced-inflammatory-response-in-human-dental-pulp-cells
#16
Zhihui Feng, Qimeng Li, Runsha Meng, Baicheng Yi, Qiong Xu
Dental pulp inflammation is a widespread public health problem caused by oral bacterial infections and can progress to pulp necrosis and periapical diseases. N6-methyladenosine (m6A) is a prevalent epitranscriptomic modification in mRNA. Previous studies have demonstrated that m6A methylation plays important roles in cell differentiation, embryonic development and stress responses. However, whether m6A modification affects dental pulp inflammation remains unknown. To address this issue, we investigated the expression of m6A and N6-adenosine methyltransferase (METTL3, METTL14) as well as demethylases (FTO, ALKBH5) and found that the levels of m6A and METTL3 were up-regulated in human dental pulp cells (HDPCs) stimulated by lipopolysaccharide (LPS)...
May 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/29488640/curcumin-attenuates-lipopolysaccharide-induced-hepatic-lipid-metabolism-disorder-by-modification-of-m-6-a-rna-methylation-in-piglets
#17
Na Lu, Xingmei Li, Jiayao Yu, Yi Li, Chao Wang, Lili Zhang, Tian Wang, Xiang Zhong
N6 -methyladenosine (m6 A) regulates gene expression and affects cellular metabolism. In this study, we checked whether the regulation of lipid metabolism by curcumin is associated with m6 A RNA methylation. We investigated the effects of dietary curcumin supplementation on lipopolysaccharide (LPS)-induced liver injury and lipid metabolism disorder, and on m6 A RNA methylation in weaned piglets. A total of 24 Duroc × Large White × Landrace piglets were randomly assigned to control, LPS, and CurL (LPS challenge and 200 mg/kg dietary curcumin) groups (n = 8/group)...
January 2018: Lipids
https://www.readbyqxmd.com/read/29486327/fto-promotes-srebp1c-maturation-and-enhances-cidec-transcription-during-lipid-accumulation-in-hepg2-cells
#18
Ao Chen, Xiaodong Chen, Shiqiang Cheng, Le Shu, Meiping Yan, Lun Yao, Binyu Wang, Shuguang Huang, Lei Zhou, Zaiqing Yang, Guoquan Liu
The fat mass and obesity-associated (FTO) gene is tightly related to body weight and fat mass, and plays a pivotal role in regulating lipid accumulation in hepatocytes. However, the mechanisms underlying its function are poorly understood. Sterol regulatory element binding protein-1c (SREBP1c) is a transcription factor that regulates lipogenesis. Cell death-inducing DFFA (DNA fragmentation factor-α)-like effector c (CIDEC) plays a crucial role in lipid droplets (LDs) size controlling and lipid accumulation...
May 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29484031/-fto-genotype-dietary-protein-intake-and-body-weight-in-a-multiethnic-population-of-young-adults-a-cross-sectional-study
#19
David C Merritt, Joseph Jamnik, Ahmed El-Sohemy
Background: Variation in the fat mass and obesity-associated gene ( FTO ) has been associated with susceptibility to obesity, but the association appears to be modified by diet. We investigated whether dietary protein intake modifies the association between FTO variant rs1558902 and body mass index (BMI) and waist circumference in young adults ( n  = 1491) from the cross-sectional Toronto Nutrigenomics and Health Study. Results: Lifestyle, genetic, anthropometric, and biochemical data were collected and diet was assessed using a Toronto-modified Willett Food Frequency Questionnaire...
2018: Genes & Nutrition
https://www.readbyqxmd.com/read/29469022/obesity-candidate-genes-gestational-weight-gain-and-body-weight-changes-in-pregnant-women
#20
Susan W Groth, Amy LaLonde, Tongtong Wu, I Diana Fernandez
OBJECTIVE: To examine the associations of two obesity-associated genes, FTO (rs9939609) and GNB3 (rs5443) single nucleotide polymorphisms (SNPs), with early pregnancy body mass index, gestational weight gain, and postpartum weight retention. METHODS: Secondary data analysis of self-identified white (n = 580) and black (n = 194) women who participated in a randomized controlled trial (2009-2014) and provided a saliva sample of DNA. Bivariate relationships were assessed using analysis of variance...
April 2018: Nutrition
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