The association between annexin A5 (ANXA5) gene polymorphism and left ventricular hypertrophy (LVH) in Chinese endogenous hypertension patients

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Left ventricular hypertrophy (LVH) is common in endogenous hypertension (EH). We evaluated annexin A5 (ANXA5) promoter polymorphism in a cross-sectional study with a total of 850 EH patients, including 337 EH patients with LVH.

Genotyping of ANXA5 promoter single nucleotide polymorphisms (SNPs) was conducted by SNaPshot assays and statistical analyses were performed to quantify its association with LVH.

Of all potential SNPs, rs1050606 showed significant association with LVH (P = .008 in dominant and P = .006 in codominant models, respectively). During further analysis of SNPs on ANXA5 promoter region, rs1050606 had the most prominent effect. Furthermore, haplotypes M2 had higher risk of inducing LVH in EH patients compared with M1 (P = .032, OR = 1.42, 95%CI = 1.03–1.94). Patients with ANXA5 promoter haplotype GATGTC were also more susceptible to LVH (P = .022, OR = 1.35, 95%CI = 1.04–1.74). In the luciferase experiment, ANXA5 rs1050606 had the most promoter activity in myocardial cells (P < .001).

These results showed that ANXA5 rs1050606 was significantly associated with LVH in Chinese EH patients, likely via influencing ANXA5 expression in serum and in myocardial cells.

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