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The effects of dietary sinigrin and indole-3-carbinol (I3C) on DNA methylation and O6-methylguanine--DNA-transmethylase activity, factors which may be of importance in the induction of tumorigenicity by the tobacco-specific nitrosamine 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK), were
Comparative toxicity was determined for twenty potential chemopreventive agents in the Human Epithelial Cell Cytotoxicity (HECC) Assay using epithelial cell cultures from eight different tissues including: skin, kidney, breast, bronchus, cervix, prostate, oral cavity, and liver. The endpoints
In this review of the scientific literature on the relationship between vegetable and fruit consumption and risk of cancer, results from 206 human epidemiologic studies and 22 animal studies are summarized. The evidence for a protective effect of greater vegetable and fruit consumption is consistent