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  • Title: CYP11B2 T-344C gene polymorphism and atrial fibrillation: a meta-analysis of 2,758 subjects.
    Author: Li YY, Zhou CW, Xu J, Qian Y, Wang B.
    Journal: PLoS One; 2012; 7(11):e50910. PubMed ID: 23209837.
    Abstract:
    BACKGROUND: Aldosterone synthase (CYP11B2) T-344C gene polymorphism was found to be correlated with atrial fibrillation (AF) risk. However, the results of individual studies remain conflicting. OBJECTIVE AND METHODS: A meta-analysis including 2,758 subjects from six individual studies was performed to explore the correlation between CYP11B2 T-344C gene polymorphisms and AF. The pooled odds ratios (ORs) and their corresponding 95% confidence intervals (95% CIs) were evaluated by the fixed- or random-effects model. RESULTS: A significant relationship between CYP11B2 T-344C gene polymorphism and AF was found under allelic (OR: 1.26, 95% CI: 1.11-1.42, P = 0.0002), recessive (OR: 1.99, 95% CI: 1.26-3.14, P = 0.003), dominant (OR: 0.903, 95% CI: 0.820-0.994, P = 0.036), homozygous (OR: 1.356, 95% CI: 1.130-1.628, P = 0.001), and additive (OR: 1.153, 95% CI: 1.070-1.243, P = 1.0×10(-10)) genetic models. No significant association between CYP11B2 T-344C gene polymorphism and AF was found under the heterozygous genetic model (OR: 1.040, 95% CI: 0.956-1.131, P = 0.361). CONCLUSIONS: A significant association was found between CYP11B2 T-344C gene polymorphism and AF risk. Individuals with the C allele of CYP11B2 T-344C gene polymorphism have higher risk for AF.
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