Abstract
The angiotensinogen (AGT) gene has been shown to be involved in the development of coronary heart disease (CHD). However, the results have been inconsistent. In this study, the authors performed a meta-analysis to clarify the associations between AGT polymorphisms and CHD risk among the Chinese population. Published literature from PubMed, the China National Knowledge Infrastructure and Wanfang Data were searched. Pooled odds ratio (OR) and 95% confidence interval (CI) were calculated using a fixed- or random-effects model. Fourteen studies (2540 cases and 2173 controls) for M235T polymorphism and five studies (655 cases and 815 controls) for T174M polymorphism were included in the meta-analyses. The results showed that M235T polymorphism was significantly associated with CHD risk under a recessive model (OR=1.65, 95% CI 1.22-2.25). There was also significant association between T174M polymorphism and CHD risk under a homogeneous co-dominant model (OR= 4.20, 95% CI 1.90-9.29) and a recessive model (OR=4.15, 95% CI 1.88-9.15). Further sensitivity analyses confirmed the significant association. The meta-analyses indicated the significant associations of two AGT polymorphisms (M235T, T174M) with CHD risk in the Chinese population.
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