title: Aldehyde dehydrogenase 2 (ALDH2) Glu504Lys polymorphism is associated with hypertension risk in Asians: a meta-analysis.
abstract: BACKGROUND
  The association of the aldehyde dehydrogenases-2 (ALDH2) Glu504Lys polymorphism and hypertension in Asians has been investigated. This meta-analysis aims to comprehensively assess the influence of this polymorphism on the hypertension risk.
  
  
  METHODS
  An electronic literature search was conducted using the following database: PubMed, Embase and China National Knowledge Infrastructure (CNKI) till to Mar 25th, 2015. The strength of the association between statins and fractures risk was calculated with the OR and respective 95% CIs. The random effect model was used.
  
  
  RESULTS
  Nine studies evaluating the relationship between ALDH2 Glu504Lys polymorphism and hypertension risk in Asians were selected in this meta-analysis. A total of 12161 subjects were included. The data showed that ALDH2 Glu504Lys polymorphism could increase the risk of hypertension of Asians (OR = 1.31; 95% CI, 1.18-1.47; P < 0.00001). In the subgroup analysis of race, both Japanese and Chinese with ALDH2 Glu504Lys polymorphism showed increased hypertension risk (OR = 1.23; 95% CI, 1.09-1.38; P = 0.0006 and OR = 1.46; 95% CI, 1.21-1.77; P = 0.0001), respectively. In the subgroup analysis of gender, males with this polymorphism showed increased hypertension risk (OR = 1.59; 95% CI, 1.40-1.80; P < 0.00001). However, females did not showed this result (OR = 0.94; 95% CI, 0.69-1.30; P = 0.71). When considered alcohol consumption, we found that drinkers and non-drinkers all had increased hypertension risk, if they carried this polymorphism.
  
  
  CONCLUSIONS
  This meta-analysis suggested that ALDH2 Glu504Lys polymorphism was a risk factor of hypertension in Asians.
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Henan University of Science and Technology Luoyang 471003, Henan Province, China.
authors.forename: Kui
authors.initials: K
authors.lastname: Jia
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Henan University of Science and Technology Luoyang 471003, Henan Province, China.
authors.forename: Honglei
authors.initials: H
authors.lastname: Wang
authors.affiliation: Department of Cardiology, First Affiliated Hospital of Henan University of Science and Technology Luoyang 471003, Henan Province, China.
authors.forename: Pingshuan
authors.initials: P
authors.lastname: Dong
keywords: ALDH2; Asians; association; hypertension