How Aspirin Might Stem Cancer

Photo Credit: DirkVorderstraßeThe use of aspirin and other nonsteroidal anti-inflammatory drugs significantly reduces the risk for cancer, but no one has been able to explain why. Now researchers have found that these drugs slow the accumulation of a type of DNA change called somatic genome abnormalities, or S.G.A.’s, that lead to uncontrolled cell growth.

The scientists studied 13 people with Barrett’s esophagus, a condition in which cells in the esophagus become damaged, usually by acid reflux. Sometimes the cells become precancerous, and rarely the problem leads to esophageal cancer.

The researchers tracked S.G.A.’s with periodic biopsies over an average of almost 12 years. Over all, the use of nonsteroidal anti-inflammatory drugs was associated with a 90 percent reduction in the rate of mutations.

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