How does alcohol cause cancer?

A new study looking at blood stem cells uncovered fresh details surrounding the mechanisms by which alcohol raises the risk of developing cancer.
Alcohol is known to raise the risk of no fewer than seven types of cancer. These are mouth, upper throat (pharynx), voice box (laryngeal), esophageal, breast, liver, and bowel cancer.Though the links are established, exactly how alcohol works to induce malignancy is not as well-understood. Several mechanisms are thought to be at work  Most previous studies have only examined cells in the laboratory, looking at changes in them after exposure to alcohol (ethanol). Recently, researchers from MRC Laboratory of Molecular Biology in Cambridge, United Kingdom, set out to gain a clearer picture of the alcohol-cancer relationship using whole animals.

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