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  • Title: Genetic variant in fat mass and obesity-associated gene associated with type 2 diabetes risk in Han Chinese.
    Author: Qian Y, Liu S, Lu F, Li H, Dong M, Lin Y, Du J, Lin Y, Gong J, Jin G, Dai J, Hu Z, Shen H.
    Journal: BMC Genet; 2013 Sep 22; 14():86. PubMed ID: 24053193.
    Abstract:
    BACKGROUND: 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. RESULTS: 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). CONCLUSIONS: 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.
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