Association between ALDH2 Polymorphism and Gastric Cancer Risk in a Korean Population
10.3346/jkms.2020.35.e148
- Author:
Chang Kyun CHOI
1
;
Sun-Seog KWEON
;
Sang-Hee CHO
;
Hye-Yeon KIM
;
Min-Ho SHIN
Author Information
1. Department of Preventive Medicine, Chonnam National University Medical School, Hwasun, Korea
- Publication Type:Brief Communication
- From:Journal of Korean Medical Science
2020;35(17):e148-
- CountryRepublic of Korea
- Language:English
-
Abstract:
The association between alcohol and gastric cancer is stronger in East Asians than in other ethnic groups, presumably due to an aldehyde dehydrogenase 2 (ALDH2) polymorphism. Therefore, we investigated the relationship between the ALDH2 rs671 polymorphism and gastric cancer in a Korean population. This case-control study included 3,245 hospital patients newly diagnosed with gastric cancer and 8,732 population controls. The ALDH2 rs671 genotype was classified as inactive ALDH2 (GG) or active ALDH2 (GA/AA). The risk of gastric cancer was higher in men with the inactive ALDH2 than in those with active ALDH2 (odds ratio [OR], 1.25; 95% confidence interval [CI], 1.09–1.39), whereas no significant association was found between ALDH2 genotype and gastric cancer in women (OR, 1.00; 95% CI, 0.99–1.02). In men, the association between ALDH2 genotype and gastric cancer was stronger in current drinkers. Our findings support the previously reported association between inactive ALDH2 and high risk of gastric cancer.
