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Lifestyle, diet may help prostate cancer

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SAN FRANCISCO, Aug 15, 2005 (United Press International via COMTEX) -- A U.S. Defense Department-funded study indicates lifestyle and diet might stop or reverse prostate cancer progression in some men.

The research -- the first randomized, controlled trial showing lifestyle changes may affect the progression of any type of cancer -- was directed by Drs. Dean Ornish and Peter Carroll of the University of California-San Francisco, and the late Dr. William Fair of the Memorial Sloan-Kettering Cancer Center.

The researchers studied 93 men with biopsy-proven prostate cancer who elected not to undergo conventional treatment. The participants were randomly divided into two groups: one asked to make comprehensive changes in diet and lifestyle or a group not asked to do so.

After one year, the researchers found PSA levels decreased in men making comprehensive lifestyle changes, but increased in the comparison group.

The physicians also found serum from the participants inhibited prostate tumor growth in vitro by 70 percent in the lifestyle-change group, but only by 9 percent in the comparison group.

Carroll said the study is the first attempting to better identify the role of diet and lifestyle in preventing and treating prostate cancer.

The findings appear in the September issue of the Journal of Urology.

Copyright 2005 by United Press International.

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