IL-10基因多态性与幽门螺杆菌相关胃癌易感性的关系

Association between polymorphisms of IL-10 genes and susceptibility of H.pylori-associated gastric cancer

目的探讨重庆地区汉族人群中IL-10基因型与幽门螺杆菌相关的胃癌易感性的关系。方法选取幽门螺杆菌阳性的胃癌患者（胃癌组）100例和体检者中的幽门螺杆菌感染者（对照组）140例,采用限制性片段长度多态性PCR（PCR-RFLP）的方法检测重庆地区汉族人群中IL-10-592位点多态性。结果与对照组比较,胃癌组IL-10-592各基因型的频率分布差异有统计学意义（χ^2=16.36,P〈0.05）。经Logistic回归分析,与携带IL-10-592 C/C者比较,携带IL-10-592 A/A者发生胃癌的危险性为OR=4.37（95%CI：2.04-9.38）。结论 IL-10基因多态性与幽门螺杆菌相关胃癌有关,IL-10-592是幽门螺杆菌相关胃癌的易感基因。

Objective To discuss the relationship between IL-10 genes and susceptibility of H.pylori-associated gastric cancer of Han population in Chongqing district.Methods 100 H.pylori-positive patients with gastric cancer（gastric cancer group）and 140 H.pylori-positive healthy people （control group）were chose in the study,PCR-RFLP method was used to detect the IL-10-592 lo-cus polymorphisms of Han population in Chongqing district.Results Comparing with control group,IL-10-592 genotype frequency distribution of gastric cancer group has statistically significance （χ^2=16.36,P〈0.05）.Logistic regression analysis showed that gastric cancer incidence risk of people carrying with IL-10-592 A/A genotype was OR=4.37（95%CI：2.04-9.38）,comparing with the subjects carrying with IL-10-592 C/C.Conclusion Polymorphism of IL-10 gene has close correlated with H.pylori-asso-ciated gastric cancer,IL-10-592 C/C might be the susceptibility gene of H.pylori-associated gastric cancer.