© The Author 2007. Published by Oxford University Press.
EDITORIALS |
More Aspirin for Less Cancer?
Affiliations of authors: Arizona Cancer Center (MEM, ERG), Mel and Enid Zuckerman Arizona College of Public Health (MEM), and Department of Nutrition, College of Agriculture and Life Sciences (MEM), University of Arizona, Tucson, AZ; Department of Community and Family Medicine, Dartmouth Medical School, Hanover, NH (ERG); Fred Hutchinson Cancer Research Center, Seattle, WA (ERG)
Correspondence to: María Elena Martínez, MPH, PhD, Arizona Cancer Center, University of Arizona, PO Box 245024, Tucson, AZ (e-mail: emartinez@azcc.arizona.edu).
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More than a century after aspirin was first synthesized, its benefits continue to be discovered and now include everything from relief of headaches to cardiovascular disease prevention. Evidence pointing to an association between aspirin and reduced cancer risk is largely derived from epidemiologic studies, although laboratory experiments and a few clinical trials have provided support for this idea. The apparent anticancer effect of aspirin has been seen most consistently for gastrointestinal tract cancers and especially for colorectal cancer (1); it is thought to occur through the drug's ability to inhibit cyclooxygenase enzymes, which are produced by the body when there is inflammation, although alternate hypotheses have been suggested (2).
Prior epidemiologic studies of aspirin and cancer prevention
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