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Int J Cancer. 1998 Oct 23;79(5):517-20.

Association between genetic polymorphisms of glutathione S-transferase P1 and N-acetyltransferase 2 and susceptibility to squamous-cell carcinoma of the esophagus.

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Department of Surgery II, Osaka University Medical School, Suita, Japan.


We examined the effect of genetic polymorphisms of phase-II enzymes, glutathione S-transferase P1 (GSTP1) and N-acetyltransferase2 (NAT2) on susceptibility to esophageal squamous-cell carcinoma To determine the genotypes of the 2 polymorphisms, PCR-based analysis was performed on samples from 66 Japanese patients who had been histologically diagnosed as having esophageal squamous-cell carcinoma, and 164 healthy Japanese controls. The frequency of the AA genotype of GSTP1 was significantly higher in esophageal-cancer patients than in the controls according to logistic-regression analysis (92% of the patients and 68% of the controls; odds ratio (OR), 8.0; p = 0.0013). Also, more patients had the slow and intermediate acetylator genotypes of NAT2 than the controls (15% and 38% vs. 10% and 32% respectively; OR of the slow acetylator genotype, 4.2; p = 0.032; OR of the slow plus intermediate acetylator genotypes, 2.9; p = 0.015). Polymorphisms of GSTP1 and NAT2 may serve as genetic biomarkers for predicting susceptibility to esophageal squamous-cell carcinoma.

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