Association of AT1R polymorphism with hypertension risk: An update meta-analysis based on 28,952 subjects

Previous studies have shown that angiotensin II AT1 receptor gene (AT1R) polymorphisms are associated with the risk for hypertension. However, the results remain controversial. In the present study, we performed a meta-analysis to systematically summarize the association between AT1R genetic polymorphisms and the risk for hypertension.

We searched the literature in PubMed, EMBASE, ISI Web of Science, Wanfang, and Chinese National Knowledge Infrastructure databases (CNKI) to find case-control studies on the associations of AT1R genetic polymorphisms with the risk for hypertension. The meta-analysis was performed by using RevMan 5.0 software. The association of hypertension risk with AT1R genetic polymorphism was estimated by pooled odds ratios (ORs) and 95% confidence intervals (95% CIs).

Fifty-six studies involving 28,952 subjects were included in the present meta-analysis. Our results suggest that the polymorphism (A1166C) of AT1R gene is associated with a statistically increased hypertension risk, not only in Asian populations but also in Caucasian populations. We did not find any association in African populations.

This meta-analysis suggests that A1166C polymorphism in the AT1R gene is associated with the risk of hypertension in Asian and Caucasian populations.