Women's Health Weekly
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Breast Cancer
Black tea polyphenols may inhibit hormone-dependent breast tumors
December 16th, 2004
Black tea polyphenols may have some chemopreventive activity against hormone-dependent breast tumors, say biochemists. "The aromatase enzyme, which converts androstenedione to estrone, regulates the availability of estrogen to support the growth of hormone-dependent breast tumors. In this study, we investigated the inhibitory effects of black tea polyphenols on aromatase activities," reported T.D. Way and colleagues, National Taiwan University. "We found that black tea polyphenols, TF-1, TF-2, and TF-3, significantly inhibited rat ovarian and human placental aromatase activities. In addition, using an in vivo model, these black tea polyphenols also...
Source: Women's Health Weekly (2004-12-16)
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