5 - Science News / Cancer Fighting Green Tea May Have A...

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Science News / Cancer Fighting Green Tea May Have A Dark Side http://www.sciencenews.org/view/generic/id/40634/title/Cancer_figh. .. 1 of 2 2/18/09 1:45 PM Home / Blogs / / Blog entry By Janet Raloff Web edition : Thursday, February 5th, 2009 http://www.sciencenews.org/view/generic/id/40634 CANCER FIGHTING GREEN TEA MAY HAVE A DARK SIDE For more than a decade, study after study has extolled the cancer-fighting virtues of green tea, or at least extracts of its polyphenol antioxidants. But preliminary data now suggest that for some people this herbal remedy may not prove beneficial — or even benign. In test-tube experiments on cancer cells and in animals, green tea s polyphenols inactivated the cell-killing activity of a drug used to treat blood cancers. Physicians prescribe bortezomib, a drug sold under the trade name Velcade, to patients with multiple myeloma. This treatable, though incurable, cancer begins in antibody-producing white blood cells. As the abnormal cells replicate and build within bone marrow, they risk damaging the bone itself. Once this disease
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5 - Science News / Cancer Fighting Green Tea May Have A...

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