Association between α-adducin rs4961 polymorphism and hypertension: A meta-analysis based on 40 432 subjects.

BACKGROUND:Recently, the role of α-adducin rs4961 polymorphism in hypertension (HTN) was intensively analyzed, but the results of these studies were inconsistent. Therefore, we performed this study to better assess the relationship between α-adducin rs4961 polymorphism and the likelihood of HTN. METHODS:Eligible studies were searched in PubMed, Medline, Embase, and Web of Science. Odds ratios with 95% confidence intervals were used to assess the relationship between α-adducin rs4961 polymorphism and HTN. RESULTS:A total of 33 studies with 40 432 participants were analyzed. Significant associations with the likelihood of HTN were detected for the α-adducin rs4961 polymorphism with fixed effect models (FEM) (dominant model: P = 0.003; allele model: P = 0.003), but not with random effect models (REM). Further subgroup analysis according to ethnicity of participants revealed that the α-adducin rs4961 polymorphism was significantly associated with the likelihood of HTN in Asians (7721 cases and 8299 controls) with both FEMs (dominant model: P < 0.0001; additive model: P = 0.01; allele model: P < 0.0001) and REMs (dominant model: P = 0.0005; additive model: P = 0.03; allele model: P = 0.0006). CONCLUSIONS:Our findings indicate that the α-adducin rs4961 polymorphism may serve as a genetic biomarker of HTN in Asians.

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