摘要
目的评价肿瘤坏死因子α(TNF-α)基因启动子区-308位点基因多态性与胃癌易感性。方法检索PubMed、EMBASE数据库、Cochrane图书馆(1966年至2009年7月)及万方、中国生物医学文献数据库(1979年至2009年7月)文献,收集TNF—α-308位点基因多态性与胃癌易感性的病例对照研究,共检索到39篇相关文献,26篇纳入研究。应用RevMan 4.2对各研究结果进行异质性检验和效应值合并。结果26篇纳入本研究的文献中,共计有5225例胃癌患者和8473例1名)对照人群。总研究人群TNF-α-308位点基因G:A的OR=0.85(95%CI:0.76~0.96,P=0.01),AA:GG基因型OR值为1.19(95%C1:1.01~1.39,P=0.03)。分层分析显示,东方人种G:A的OR=0.97(95%CI:0.75~1.26,P=0.84),西方人种G:A的OR=0.79(95%CI:0.70~0.89,P〈0.01),AA:GG基因型OR值为1.26(95%CI:1.04~1.52,P=0.02)。非贲门胃癌患者G:A的OR=0.90(95%CI:0.79~1.02,P=0.10),幽门螺杆菌阳性胃癌患者G:A的OR=1.08(95%CI:0.62~1.88,P=0.79)。结论西方人种TNF-α-308位点A等位基因及AA基因型与胃癌遗传易感性相关,携带A等位基因患者增加罹患胃癌的风险。
Objective To assess the association between tumor necrosis factor-alpha (TNF-α) gene promoter region - 308 gene polymorphisms and gastric cancer ( GC ) susceptibility. Methods Published work about TNF-α -308 and GC from PubMed, EMBASE, Cochrane library in English and from Wanfang, CBM in Chinese were searched for relevant articles published by the end of July,2009. Thirty-nine relevant articles were selected and 26 of them met the criteria. The correlated index was extracted for aggregate analysis in RevMan 4.2. Results There were 5225 GC patients and 8473 controls for TNF-α - 308 in 26 papers. Overall,allele contrast (G: A and AA: GG) genotype of TNF-α-308 polymorphisms produced significant results in worldwide populations, the OR values were 0. 85 (95% CI:0. 76 -0. 96 ,P = 0. 01 ) and 1.19 (95% CI:1. 01 - 1.39, P = 0. 03). Subgroup analysis showed that OR values of G: A and AA: GG in west population were 0. 79 (95 % CI: 0.70 - 0. 89,P 〈 0. 01 ) and 1.26 ( 95% CI: 1.04 - 1.52, P = 0. 02 ), while in east populations subgroup analysis, the OR was 0. 97 (95% CI: 0. 75 - 1.26, P = 0. 84) . No significant association was observed in non-cardia GC and Helicobacter pylori positive GC, the OR values were0.90 (95%CI: 0.79-1.02,P=0.10) and 1.08 (95%CI: 0.62-1.88,P=0. 79 ). Conclusion TNF-α - 308 A allele and AA genotype were associated with a statistically significant increased risk of gastric cancer in western people.
出处
《中华预防医学杂志》
CAS
CSCD
北大核心
2010年第3期209-214,共6页
Chinese Journal of Preventive Medicine