title: Toll-like receptor 4 gene Asp299Gly polymorphism in myocardial infarction: a meta-analysis of 15,148 subjects.
abstract: It remains controversial regarding the association between toll-like receptor 4 (TLR4) gene Asp299Gly (+896 A/G) polymorphism and myocardial infarction (MI) risk. Thus, a large-scale meta-analysis evaluating the potential association between this gene variant and MI risk is required. PubMed, Embase, Web of Science, CBMdisc, CNKI, and Google Scholar were searched until February 6, 2013. All the statistical tests were performed using Stata 11.0. Nine articles involving 10 studies were included in the final meta-analysis, covering a total of 8299 MI cases and 6849 controls. Overall, no significant association was found between the TLR4 gene Asp299Gly polymorphism and MI risk (G allele vs. A allele: OR=0.95, 95% CI=0.74-1.22, p=0.71; G/G vs. A/A: OR=1.03, 95% CI=0.54-1.98, p=0.93; G/G vs. A/G+A/A: OR=1.05, 95% CI=0.55-2.03, p=0.87; G/G+A/G vs. A/A: OR=0.92, 95% CI=0.75-1.13, p=0.42). In the subgroup analysis based on source of controls, there was also lack of evidence for significant association between the TLR4 gene Asp299Gly polymorphism and MI risk. In summary, the present meta-analysis indicated that the TLR4 gene Asp299Gly polymorphism was not associated with MI risk.
authors.affiliation: Department of Emergency, Chinese PLA Air Force General Hospital, 30 Fucheng Road, Haidian District, Beijing 100142, China. Electronic address: shuaishuaijita@sohu.com.
authors.forename: Yan-Wei
authors.initials: YW
authors.lastname: Yin
authors.affiliation: Jinsong Sanatorium of Beijing Air Force, Beijing 100021, China.
authors.forename: Qian-Qian
authors.initials: QQ
authors.lastname: Sun
authors.affiliation: Department of Emergency, Chinese PLA Air Force General Hospital, 30 Fucheng Road, Haidian District, Beijing 100142, China.
authors.forename: Ai-Min
authors.initials: AM
authors.lastname: Hu
authors.affiliation: Department of Emergency, Chinese PLA Air Force General Hospital, 30 Fucheng Road, Haidian District, Beijing 100142, China.
authors.forename: Hong-Li
authors.initials: HL
authors.lastname: Liu
authors.affiliation: Department of Emergency, Chinese PLA Air Force General Hospital, 30 Fucheng Road, Haidian District, Beijing 100142, China.
authors.forename: Qi
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Department of Medical Affairs, General Hospital of PLA Chengdu Military Area Command, Chengdu 610083, China.
authors.forename: Bei-Bei
authors.initials: BB
authors.lastname: Zhang
mesh_terms: D056726:Genetic Association Studies; D020022:Genetic Predisposition to Disease; D006801:Humans; D009203:Myocardial Infarction / Q000235:genetics / Q000276:immunology*; D011110:Polymorphism, Genetic; D051197:Toll-Like Receptor 4 / Q000235:genetics*
chemical_list: C495345:TLR4 protein, human; D051197:Toll-Like Receptor 4