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news.Scientists from the National Institute on Alcohol Abuse and Alcoholism and the National Institute of Standards and Technology appear to have found a biochemical basis for the suspected link between alcohol consumption and cancer, particularly upper gastrointestinal cancer.
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Researchers looking for such a link have focused on acetaldehyde, a suspected carcinogen formed as the body metabolizes alcohol. The researchers claim that polyamines – natural compounds essential for cell growth – react with acetaldehyde to trigger a series of reactions that damage DNA, an event that can lead to the formation of cancer.
“We’ve long suspected acetaldehyde’s role in the carcinogenicity of alcohol beverage consumption, but this study gives us important new clues about its involvement,” says Dr Ting-Kai Li, director of the NIAAA, part of the National Institutes of Health. “This work provides an important framework for understanding the underlying chemical pathway that could explain the association between drinking and certain types of cancer.”