期刊
ATHEROSCLEROSIS
卷 204, 期 2, 页码 453-458出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.atherosclerosis.2008.09.018
关键词
ABCG8; Polymorphism; Cardiovascular disease; Familial hypercholesterolemia; Plant sterols
Elevated plasma plant sterol concentrations may be a risk factor of cardiovascular disease (CVD). Polymorphisms in the ABCG8 gene have been identified that contribute to the variation in plasma concentrations of plant sterols. However, data on the direct relationship of ABCG8 gene polymorphisms with CVD are lacking. Therefore, we examined associations between the D19H and T400K polymorphisms in the ABCG8 gene and CVD in a large cohort study of 2012 patients with heterozygous familial hypercholesterolemia (FH). A total of 244 individuals carried one or two alleles of the D19H variant and 568 individuals the T400K variant. During 94,809 person years, 648 (32.2%) individuals developed CVD of which coronary heart disease (CHD) was the most frequent cardiovascular event (N=553). In a Cox proportional hazard regression model adjusted for relevant cardiovascular risk factors, the D19H polymorphism was not associated with total CVD risk (p = 0.2), but there was evidence of an association with higher risk of CHD (RR 1.42, CI 1.04-1.95; p = 0.03). We observed no relationship between the T400K polymorphism and cardiovascular endpoints (p > 0.1). However, FH individuals carrying the risk genotype for both ABCG8 variants had an increased risk of CVD (RR 1.57, 95% CI 1.13-2.18; p = 0.01) and CHD (RR 1.72, 95% Cl 1.23-2.41; p = 0.002). In conclusion, our data suggest that genetic variation in the ABCG8 gene may influence the burden of atherosclerosis. (C) 2008 Elsevier Ireland Ltd. All rights reserved.
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