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Biological Trace Element Research • 2007 | View Paper
“Experiments using 32P-labeled DNA fragments obtained from human cancer-related genes showed that catechins induced DNA damage in the presence of metals such as Cu(II) and Fe(III) complexes.”
“These results suggest that the pro-oxidant property of catechins , which are generally considered to be anti-oxidants and anticarcinogens, is responsible for the O2 reducing ability of catechins catalyzed by cupric ion.”