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J Cancer Res Ther ; 2019 May; 15(3): 556-563
Artículo | IMSEAR | ID: sea-213658

RESUMEN

Background: Several studies have investigated hypopharyngeal cancer (HC) risk in combination with xenobiotic metabolism-related genetic polymorphisms and the burden of alcohol consumption and smoking in European countries but not in East Asian countries. Patients and Methods: This hospital-based case–control study involved 61 male patients with HC and 71 male cancer-free controls. Information on age, body mass index, and alcohol and cigarette consumption was obtained from medical records, a self-completion questionnaire, and a thorough interview by an otolaryngologist. Alcohol dehydrogenase 1B (ADH1B), aldehyde dehydrogenase 2 (ALDH2), cytochrome P450 A1 (CYP1A1) MspI, CYP1A1 Ile462Val, glutathione S-transferase (GST) M1, GSTT1, and GSTP1 gene polymorphisms were determined by polymerase chain reaction-based methods. Univariate and multivariate analyses were performed by adjustment for age by the Mantel–Haenszel method. Results: The burden of alcohol and cigarette consumption significantly increased the risk of HC and showed a synergistic effect. ADH1B*1/*1 (odds ratio [OR] 7.34) and ALDH2 *1/*2 (OR 13.22) were significant risk factors for HC. Individuals with ADH1B*1/*1 or ALDH2 *1/*2 who consumed alcohol were more susceptible to HC. However, polymorphisms of CYP1A1 gene and GSTs were not significant cancer risk factors in patients with HC. Conclusions: ADH1B*1/*1 and ALDH2 *1/*2 were significant risk factors for HC, while polymorphism of CYP1A1 gene and GSTs was not a significant risk factor for HC. These polymorphisms determined the effects of alcohol and cigarette smoke in addition to burden of alcohol and cigarettes intake on the risk of HC

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