Cancer fighting green tea may have a dark side

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http://www.sciencenews.org/view/generic/id/40634/title/Cancer_fighting_green_tea_may_have_a_dark_side

By Janet Raloff

Web edition : Thursday,

February 5th, 2009

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.

Arne

UC

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