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The Association of GSTT1 Genetic Polymorphism with the Risk of Esophageal Cancer-Interactive with Environmental Exposure

並列摘要


In this study, we investigated the association of the genetic polymorphisms of CYPlAl, CYP2E1, GSTMl and GSTTl with the risk of esophageal cancer in Taiwan. We recruited 105 cases of esophageal squamous cell carcinoma and 266 persons of healthy controls during 1996-1999. The genotypes of the xenobiotic metabolizing enzymes were determined by PCR or PCR-RFLP. There was no significant difference in distribution of these genotypes between the patients and controls. However, among the cigarette smokers, GSTTl null genotype was found to associate a higher risk of esophageal cancer, after adjustment with other environmental confounders (OR: 2.44;95% CI:1.17-5.08). Our results revealed that the GSTTl genetic polymorphism might interact with cigarette smoke to modulate the risk of esophageal cancer in Taiwan.

並列關鍵字

esophageal cancer polymorphisms GST CYP

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