Alcohol and cancer.

This article represents the proceedings of a symposium at the 2000 ISBRA Meeting in Yokohama, Japan. The chairs were Helmut K. Seitz and Shohei Matsuzaki. The presentations were (1) Alcohol dehydrogenase-2 and aldehyde dehydrogenase-2 genotype and cancer risk for upper aerodigestive tract in Japanese alcoholics, by Akira Yokoyama; (2) The role of acetaldehyde in alcohol-associated carcinogenesis, by Nils Homann; (3) High salivary acetaldehyde levels after a moderate dose of alcohol in ALDH2-deficient subjects, by Satu Väkeväinen; (4) Alcohol and vitamin A interactions, by Xian Dong Wang; and (5) Alcohol and colorectal cancer, by Helmut K. Seitz.