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PHILADELPHIA, Dec 01, 2004 (United Press International via COMTEX) -- Researchers from Wisconsin and Ohio say the polyphenols in green tea help prevent the spread of prostate cancer.
That is because those green tea polyphenols, or GTP, target molecular pathways that shut down the proliferation and spread of tumor cells, as well as inhibit the growth of tumor nurturing blood vessels, researchers from the University of Wisconsin, Madison, Wis., and Case Western Reserve University, Cleveland.
Their work is summarized in Wednesday's edition of the journal Cancer Research.
"Consumption of GTP led to reduced levels of IGF-1," said Hasan Mukhtar, the senior author of the paper.
"GTP also led to increased levels of one of the binding proteins for IGF-1, the insulin growth factor binding protein-3. These observations bear significance in light of studies that indicate increased levels of IGF-1 are associated with increased risk of several cancers, such as prostate, breast, lung and colon."
Copyright 2004 by United Press International.