Association between Carotid Intima-media Thickness and Aldehyde Dehydrogenase 2 Glu504Lys Polymorphism in Chinese Han with Essential Hypertension
- Author:
- No author available
- Journal Title:
- Chinese Medical Journal
- Issue:
- 12
- DOI:
- 10.4103/0366-6999.183413
- Key Word:
- Aldehyde Dehydrogenase 2;Carotid Intima-media Thickness;Essential Hypertension;Glu504Lys Polymorphism
Abstract： Background:Aldehyde dehydrogenase 2 (ALDH2) is involved in the pathophysiological processes of cardiovascular diseases.Recent studies showed that mutant ALDH2 could increase oxidative stress and is a susceptible factor for hypertension.In addition,wild-typeALDH2could improve the endothelial functions,therefore reducing the risk of developing atherosclerosis.The aim of the present study was to explore the frequency of the Glu504Lys polymorphism of the ALDH2 gene and its relation to carotid intima-media thickness (CIMT) in a group of patients with essential hypertension (EH) and to investigate the association between the Glu504Lys polymorphism and CIMTin Chinese Han patients with EH.Methods:In this study,410 Chinese Han patients with EH who received physical examinations at the People's Hospital of Sichuan Province (China) were selected.DNA microarray chip was used for the genotyping of the Glu504Lys polymorphism of the ALDH2 gene.The differences in CIMT among patients with different Glu504Lys ALDH2 genotypes were analyzed.Results:The mean CIMT of the patients carrying AA/AG and GG genotypes was 1.02 ± 0.31 mm and 0.78 ± 0.28 mm,respectively.One-way ANOVA showed that the CIMT of the patients carrying the AA/AG genotype was significantly higher than in the ones carrying the GG genotype (P ＜ 0.001).Multivariate logistic regression showed that the Glu504Lys AA/AG genotype of the ALDH2 gene was one of the major factors influencing the CIMT in patients with EH (odds ratio =3.731,95％ confidence interval =1.589-8.124,P =0.001).Conclusions:The Glu504Lys polymorphism of the ALDH2 gene is associated with the CIMT of Chinese Han patients with EH in Sichuan,China.
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