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hOGG1基因多态与结直肠癌和肝细胞癌遗传易感性

Chinese Journal of Gastroenterology and Hepatology(2008)

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Abstract
目的探讨hOGG1基因第326密码子多态(Ser326Cys)与中国人群结直肠癌(CRC)和肝细胞癌(HCC)遗传易感性的关系。方法采用TaqMan方法检测345例CRC与670例对照以及175例HCC与119例对照的hOGG1 Ser326Cys基因型分布及差异。结果总体上,hOGG1 Ser326Cys基因型分布在HCC-对照、CRC-对照以及不吸烟的CRC-对照人群间均无显著性差异(P>0.05)。但在吸烟人群中,326Cys是CRC发生的危险因素(OR=1.58,95%CI=1.14~2.19,P=0.006);与Ser/Ser基因型及Ser等位基因携带者(Ser/Ser、Ser/Cys基因型)相比,Cys/Cys基因型的CRC风险显著增加至2.40倍(95%CI=1.20~4.78,P=0.013)及2.02倍(95%CI=1.21~3.37,P=0.008)。结论hOGG1 Ser326Cys多态可能与HCC发病风险无关,但Cys/Cys基因型增加中国吸烟人群的CRC发病风险。
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Key words
Gene,Genetic susceptibility,Liver cancer,Genetic polymorphism,Colorectal cancer,hOGG1
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