ATM基因单核苷酸多态性与食管癌易感性的研究

目的食管癌是世界上最常见的恶性肿瘤之一;毛细血管扩张性共济失调症突变基因(ATM)是导致毛细血管扩张性共济失调症发生的致病基因,与肿瘤的发生密切相关;本研究旨在探讨ATM基因单核苷酸多态性与食管癌发生的相关性。方法收集2009年9月至2010年12月期间江苏省淮安市楚州医院就诊的135例食管癌患者标本以及135例健康体检者作为健康对照组。ATM基因单核苷酸多态性分型检测采用Taqman技术,应用Logistc回归统计分析ATM单核苷酸多态性与食管癌发生的相关性。结果吸烟者食管癌的发生率明显高于不吸烟者,差异有统计学意义(χ2=10.252,P=0.001,P<0.05);有肿瘤家族史者患食管癌的概率明显高于没有肿瘤家族史者,差异有统计学意义(χ2=12.199,P=0.000,P<0.05);在食管癌患者组中,A/A基因型占31.9%,A/G基因型占38.5%,G/G基因型占29.6%;而健康对照组中相应的数值分别为25.9%、48.9%和25.2%。以A/A基因型相比,A/G基因型的OR值为0.798(95%CI:0.418-1.521,P=0.493);G/G基因型的OR值为0.534(95%CI:0.265-1.079,P=0.080)。结论 ATM单核苷酸多态性可能与淮安地区的食管癌有关,为食管癌的保护性因素。

Study on the single nucleotide polymorphisms of ATM and the susceptibility of esophageal cancer

Objective To investigate the correlation between one single nucleotide polymorphism(SNP)in ATM gene and the incidence of esophageal cancer.Methods A total specimens of 135 patients with esophageal cancer were recruited from our hospital from September 2009 to December 2010,135 healthy people as control at the same time.Logistic regression model was employed to analyze the relationship between the SNP and the incidence of esophageal cancer after ATM genotype by Taqman SNP genotyping assays.Results The risk o...