谷胱苷肽转硫酶GSTM1、GSTT1和GSTP1基因多态性与江苏人群直肠癌易感性的关系
Acta Universitatis Medicinalis Nanjing(Natural Science)(2007)
Abstract
目的:探讨谷胱苷肽转硫酶M1、T1、P1(GSTM1、GSTT1和GSTP1)基因多态性和吸烟饮酒习惯与直肠癌易感性的关系。方法:以直肠癌患者210例,人群对照439例为研究对象,调查研究对象的生活习惯,以多重PCR技术检测GSTM1和GSTT1基因缺失,PCR-RFLP技术检测GSTP1基因单核苷酸多态(第105密码子A→G)。结果:GSTM1和GSTT1基因缺失频率在病例组和对照组差异无显著性;GSTP1A/A、A/G和G/G基因型频率分布在病例组和对照组差异无显著性;与GSTP1A/A基因型携带者相比,G/G基因型者发生直肠癌的危险性无显著升高,调整OR值为1.11(95%CI:0.77~1.60)。结论:GSTM1、GSTT1和GSTP1基因多态性与直肠癌易感性无关。
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Key words
rectal neoplasms,genetic polymorphism,susceptibility,glutathione s-transferase
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