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mayo clinic cancer center

An Aspirin a Day Keeps the Colorectal Polyps Away

A national study indicates that patients who have had previous colorectal cancer and take 325 milligrams of aspirin each day — the equivalent of one adult aspirin — may lower the risk of developing new colon polyps by 35 percent. Polyps appear to be precursors to most colorectal cancers. The double-blind study randomly assigned half of the 635 patients who previously had colorectal cancer to an aspirin treatment group. The other half received a placebo or sugar pill. The results of the study will be published in the March 6, 2003, issue of the New England Journal of Medicine.

Green Tea Not Effective for Advanced Prostate Cancer

Although the benefits of green tea are widely touted, a study conducted by Mayo Clinic Cancer Center and North Central Cancer Treatment Group shows green tea is not an effective treatment for advanced prostate cancer. “Previous laboratory studies suggested that green tea might be an effective anticancer treatment,” says Aminah Jatoi, M.D., a Mayo Clinic medical oncologist and lead researcher on the study. “However, in our study of 42 patients with advanced androgen-independent prostate cancer, only one patient showed a short-term drop in his prostate-specific antigen (PSA) levels.