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The -2518A/G Polymorphism in the MCP-1 Gene and Tuberculosis Risk: A Meta-Analysis

Author

Listed:
  • Yonggang Zhang
  • Jie Zhang
  • Lingjun Zeng
  • Honglang Huang
  • Min Yang
  • Xiaowei Fu
  • Can Tian
  • Zhangpeng Xiang
  • Jin Huang
  • Hong Fan

Abstract

Background: The -2518A/G polymorphism in the monocyte chemoattractant protein-1 (MCP-1) gene has been implicated in the susceptibility to tuberculosis (TB), but the results are not conclusive. The aim of this study is to investigate the association between the -2518A/G polymorphism in the MCP-1 gene and the risk of tuberculosis by meta-analysis. Methods: We searched Pubmed, Embase, CNKI and Wanfang databases, covering all studies until April 29th, 2011. Statistical analyses were performed using the Revman4.2 and STATA10.0 software. Results: A total of 5341 cases and 6075 controls in 13 case-control studies were included in the meta-analysis. The results indicated that the GG homozygote carriers had a 67% increased risk of TB compared with the A allele carriers (GG vs. GA+AA: OR = 1.67, 95%CI = 1.25–2.23, P = 0.0006). In the subgroup analysis by ethnicity, significant elevated risks were found in Asians and Latinos, but not in Africans (GG vs. GA+AA: OR = 1.79, 95%CI = 1.19–2.70 and P = 0.005 for Asians; OR = 2.15, 95%CI = 1.32–3.51 and P = 0.002 for Latinos; OR = 1.28, 95%CI = 0.45–3.64 and P = 0.65 for Africans). Conclusion: This meta-analysis suggested that the -2518A/G polymorphism of MCP-1 gene would be a risk factor for TB in Asians and Latinos, while not in Africans.

Suggested Citation

  • Yonggang Zhang & Jie Zhang & Lingjun Zeng & Honglang Huang & Min Yang & Xiaowei Fu & Can Tian & Zhangpeng Xiang & Jin Huang & Hong Fan, 2012. "The -2518A/G Polymorphism in the MCP-1 Gene and Tuberculosis Risk: A Meta-Analysis," PLOS ONE, Public Library of Science, vol. 7(7), pages 1-7, July.
    • Handle: RePEc:plo:pone00:0038918
    DOI: 10.1371/journal.pone.0038918
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