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Genetic variant in fat mass and obesity-associated gene associated with type 2 diabetes risk in Han Chinese.

ABSTRACT: Genome-wide association study (GWAS) has identified that rs8050136 C/A polymorphism in fat mass and obesity-associated gene (FTO) was associated with the risk of type 2 diabetes (T2D) in Europeans. But this association was abolished after adjustment for body mass index (BMI), suggesting that the effect of rs8050136 on T2D risk might be mediated by BMI in Europeans. However, the findings in subsequent studies were inconsistent among Asian populations. To determine whether rs8050136 polymorphism in FTO is independently associated with the risk of T2D in Chinese, we conducted a case-control study with 2,925 T2D patients and 3,281 controls in Han Chinese.Logistic regression revealed that the A allele of rs8050136 was significantly associated with an increased risk of T2D, independent of BMI (odds ratio (OR) = 1.17, 95% confidence interval (95% CI) = 1.03-1.32, p = 0.016). Meta-analysis containing 10 reported studies and our data with a total of 15,819 cases and 18,314 controls further confirmed the association between rs8050136 polymorphism and T2D risk in East Asians (OR = 1.13, 95% CI = 1.07-1.19).Our findings indicate that the genetic variant in FTO may contribute to T2D risk in Han Chinese and rs8050136 polymorphism may be a genetic marker for T2D susceptibility.

SUBMITTER: Qian Y

PROVIDER: S-EPMC3848839 | biostudies-literature | 2013 Sep

REPOSITORIES: biostudies-literature

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Genetic variant in fat mass and obesity-associated gene associated with type 2 diabetes risk in Han Chinese.

Qian Yun Y Liu Sijun S Lu Feng F Li Huizhang H Dong Meihua M Lin Yudi Y Du Jiangbo J Lin Yuan Y Gong Jianhang J Jin Guangfu G Dai Juncheng J Hu Zhibin Z Shen Hongbing H

BMC genetics 20130922

<h4>Background</h4>Genome-wide association study (GWAS) has identified that rs8050136 C/A polymorphism in fat mass and obesity-associated gene (FTO) was associated with the risk of type 2 diabetes (T2D) in Europeans. But this association was abolished after adjustment for body mass index (BMI), suggesting that the effect of rs8050136 on T2D risk might be mediated by BMI in Europeans. However, the findings in subsequent studies were inconsistent among Asian populations. To determine whether rs805 ...[more]

PMID: 24053193

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Project description:BACKGROUND:Type 2 diabetes mellitus (T2DM) is a metabolic disorder which accounts for high morbidity and mortality due to complications like renal failure, amputations, cardiovascular disease, and cerebrovascular events. METHODS:We collected medical reports, lifestyle details, and blood samples of individuals and used the polymerase chain reaction-ligase detection reaction method to genotype the SNPs, and a visit was conducted in August 2016 to obtain the incidence of Type 2 diabetes in the 2113 eligible people. To explore which genes and environmental factors are associated with type 2 diabetes mellitus in a Chinese Han population, we used elastic net to build a model, which is to explain which variables are strongly associated with T2DM, rather than predict the occurrence of T2DM. RESULT:The genotype of the additive of rs964184, together with the history of hypertension, regular intake of meat and waist circumference, increased the risk of T2DM (adjusted OR?=?2.38, p?=?0.042; adjusted OR?=?3.31, p?<?0.001; adjusted OR?=?1.05, p?<?0.001). The TT genotype of the additive and recessive models of rs12654264, the CC genotype of the additive and dominant models of rs2065412, the TT genotype of the additive and dominant models of rs4149336, together with the degree of education, regular exercise, reduced the risk of T2DM (adjusted OR?=?0.46, p?=?0.017; adjusted OR?=?0.53, p?=?0.021; adjusted OR?=?0.59, p?=?0.021; adjusted OR?=?0.57, p?=?0.01; adjusted OR?=?0.59, p?=?0.021; adjusted OR?=?0.57, p?=?0.01; adjusted OR?=?0.50, p?=?0.007; adjusted OR?=?0.80, p?=?0.032) . CONCLUSION:Eventually we identified a set of SNPs and environmental factors: rs5805 in the SLC12A3, rs12654264 in the HMGCR, rs2065412 and rs414936 in the ABCA1, rs96418 in the ZPR1 gene, waistline, degree of education, exercise frequency, hypertension, and the intake of meat. Although there was no interaction between these variables, people with two risk factors had a higher risk of T2DM than those only having one factor. These results provide the theoretical basis for gene and other risk factors screening to prevent T2DM.

Dataset Information

Genetic variant in fat mass and obesity-associated gene associated with type 2 diabetes risk in Han Chinese.

Publications

Genetic variant in fat mass and obesity-associated gene associated with type 2 diabetes risk in Han Chinese.

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