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Angiotensinogen polymorphisms and acquired atrial fibrillation in Chinese

Angiotensinogen polymorphisms and acquired atrial fibrillation in Chinese,10.1016/j.jelectrocard.2009.09.009,Journal of Electrocardiology,Qun-shan Wan

Angiotensinogen polymorphisms and acquired atrial fibrillation in Chinese  
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Genetic predisposition may be underlying the prevalence of acquired atrial fibrillation (AF). We investigated the association between polymorphism in angiotensinogen (AGT) and angiotensin-converting enzyme gene and risk of acquired AF in a pair-matched case-control study conducted in Chinese Hans. We selected 9 single nucleotide polymorphisms (SNPs) in the AGT gene and 3 SNPs in the angiotensin-converting enzyme gene using a tagging-SNP strategy. We observed significant association between tagging-SNP rs699 (M235T), located in exon 2 of the AGT gene, and AF. The AA genotype of rs699 increased the risk of AF by 70% (95% confidence interval, 1.01-2.85; P = .044) under a recessive model (AA vs AG + GG). The significance remained after controlling for covariates age, smoking, body mass index, hypertension, diabetes, and left atrial dimension, with an increased risk of AF by 90% (95% confidence interval, 1.04-3.46; P = .036). We provide evidence that polymorphism in AGT gene may confer predisposition to acquired atrial fibrillation in Chinese Hans.
Journal: Journal of Electrocardiology - J ELECTROCARDIOL , vol. 43, no. 4, pp. 373-377, 2010
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