Association between chymase gene polymorphisms and atrial fibrillation in Chinese Han population.

ABSTRACT: BACKGROUND:Chymase is the major angiotensin II (Ang II)-forming enzyme in cardiovascular tissue, with an important role in atrial remodeling. This study aimed to examine the association between chymase 1 gene (CMA1) polymorphisms and atrial fibrillation (AF) in a Chinese Han population. METHODS:This case-control study enrolled 126 patients with lone AF and 120 age- and sex-matched healthy controls, all from a Chinese Han population. Five CMA1 polymorphisms were genotyped. RESULTS:The CMA1 polymorphism rs1800875 (G-1903A) was associated with AF. The frequency of the GG genotype was significantly higher in AF patients compared with controls (p?=?0.009). Haplotype analysis further demonstrated an increased risk of AF associated with the rs1800875-G haplotype (Hap8 TGTTG, odds ratio (OR)?=?1.668, 95% CI 1.132-2.458, p?=?0.009), and a decreased risk for the rs1800875-A haplotype (Hap5 TATTG, OR?=?0.178, 95% CI 0.042-0.749, p?=?0.008). CONCLUSIONS:CMA1 polymorphisms may be associated with AF, and the rs1800875 GG genotype might be a susceptibility factor for AF in the Chinese Han population.

SUBMITTER: Zhou D 

PROVIDER: S-EPMC6936049 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature