Sara M Álvarez-Avellón1, Ana Fernández-Somoano2, Eva M Navarrete-Muñoz3, Jesús Vioque3, Adonina Tardón1. 1. Unidad de Epidemiología Molecular del Cáncer, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, Oviedo, Asturias, España; Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España. 2. Unidad de Epidemiología Molecular del Cáncer, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Departamento de Medicina, Universidad de Oviedo, Oviedo, Asturias, España; Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España. Electronic address: fernandezsana@uniovi.es. 3. Consorcio de Investigación Biomédica Español en Red de Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, Madrid, España; Departamento de Salud Pública, Universidad Miguel Hernández, San Juan de Alicante, Alicante, España.
Abstract
BACKGROUND AND OBJECTIVE: Alcohol and its metabolites play an important role in carcinogenesis. This effect could be modulated by polymorphisms in genes encoding enzymes involved in the metabolism of alcohol and folate. Therefore, we analyzed the effect of alcohol consumption and ADH1B Arg48His, ADH1B Arg370Cys, ADH1C Ile349Val, ALDH2 Glu540Lys, CYP2E1 RsaI, CYP2E1 DraI, CYP2E1 TaqI and MTHFR C677T polymorphisms on the risk of developing lung cancer. PATIENTS AND METHODS: We included 876 lung cancer cases and 840 controls of the CAPUA hospital-based case-control study. Genotyping was performed using the Sequenom MassArray (iPLEX GOLD) technology. RESULTS: An alcohol consumption of 0.1-9.9g/day decreased lung cancer risk (ORadjusted=0.71; 95% CI 0.48-1.05), although statistical significance was not achieved. A consumption≥30g/day of alcohol and≥36PY of tobacco increases lung cancer risk (ORadjusted=26.68; 95% CI 12.69-56.10). On the other hand, a high consumption of vegetables (≥116.65g/day) and fruits (≥233.13g/day) decreases lung cancer risk with an alcohol consumption of 0.1-9.9g/day (ORadjusted=0.52; 95% CI 0.30-0.89; ORadjusted=0.58; 95% CI 0.33-1.03, respectively). An alcohol consumption of 10-29.9g/day in ADH1B 48His allele-carriers increases lung cancer risk (ORadjusted=3.32; 95% CI 1.03-10.70). CONCLUSIONS: Alcohol and polymorphisms in genes involved in the metabolism of alcohol and folate are related to the onset of lung cancer.
BACKGROUND AND OBJECTIVE:Alcohol and its metabolites play an important role in carcinogenesis. This effect could be modulated by polymorphisms in genes encoding enzymes involved in the metabolism of alcohol and folate. Therefore, we analyzed the effect of alcohol consumption and ADH1B Arg48His, ADH1B Arg370Cys, ADH1CIle349Val, ALDH2 Glu540Lys, CYP2E1 RsaI, CYP2E1 DraI, CYP2E1 TaqI and MTHFRC677T polymorphisms on the risk of developing lung cancer. PATIENTS AND METHODS: We included 876 lung cancer cases and 840 controls of the CAPUA hospital-based case-control study. Genotyping was performed using the Sequenom MassArray (iPLEX GOLD) technology. RESULTS: An alcohol consumption of 0.1-9.9g/day decreased lung cancer risk (ORadjusted=0.71; 95% CI 0.48-1.05), although statistical significance was not achieved. A consumption≥30g/day of alcohol and≥36PY of tobaccoincreases lung cancer risk (ORadjusted=26.68; 95% CI 12.69-56.10). On the other hand, a high consumption of vegetables (≥116.65g/day) and fruits (≥233.13g/day) decreases lung cancer risk with an alcohol consumption of 0.1-9.9g/day (ORadjusted=0.52; 95% CI 0.30-0.89; ORadjusted=0.58; 95% CI 0.33-1.03, respectively). An alcohol consumption of 10-29.9g/day in ADH1B 48His allele-carriers increases lung cancer risk (ORadjusted=3.32; 95% CI 1.03-10.70). CONCLUSIONS:Alcohol and polymorphisms in genes involved in the metabolism of alcohol and folate are related to the onset of lung cancer.