title: Association of polymorphisms in the AGT gene with essential hypertension in the Chinese population.
abstract: OBJECTIVE
  Although the angiotensinogen (AGT) gene has been implicated in the pathogenesis of essential hypertension, the results have been inconsistent. In this study, we performed a meta-analysis to assess the association of A-6G, A-20C and G-217A polymorphisms in the AGT gene with essential hypertension in the Chinese population.
  
  
  METHODS
  Published literature from PubMed, Embase, China National Knowledge Infrastructure, China Biological Medicine and Wanfang Data was retrieved. Pooled odds ratio (OR) with 95% confidence interval (CI) was calculated using fixed- or random-effects models.
  
  
  RESULTS
  Sixteen studies (4223 cases and 3743 controls) for A-6G polymorphism, ten studies (3116 cases and 2678 controls) for A-20C polymorphism and five studies (1268 cases and 1081 controls) for G-217A polymorphism were identified. The results from the meta-analyses indicated significant association of all three polymorphism with the risk of essential hypertension in the Chinese population (A-6G polymorphism: GG vs AA: OR = 1.45, 95% CI 1.17-1.81; A-20C polymorphism: CC vs AA: OR = 1.52, 95% CI 1.10-2.08; G-217A polymorphism: AA vs GG: OR = 2.36, 95% CI 1.44-3.89).
  
  
  CONCLUSIONS
  Our study indicated that three polymorphisms (A-6G, A-20C and G-217A) in the AGT gene are associated with essential hypertension in the Chinese population.
authors.affiliation: Department of Maternal and Child Health Care, School of Public Health, Shandong University, Jinan, China.
authors.forename: Bo
authors.initials: B
authors.lastname: Xi
authors.forename: Yue
authors.initials: Y
authors.lastname: Shen
authors.forename: Yinkun
authors.initials: Y
authors.lastname: Yan
authors.forename: Jie
authors.initials: J
authors.lastname: Mi
mesh_terms: D000808:Angiotensinogen / Q000235:genetics*; D044466:Asian People / Q000235:genetics*; D002681:China; D016001:Confidence Intervals; D005260:Female; D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D005828:Genetics, Population; D006801:Humans; D006973:Hypertension / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D017594:Publication Bias
chemical_list: C534931:AGT protein, human; D000808:Angiotensinogen