Abstract:Mice deficient in the xeroderma pigmentosum group A gene (Xpa) exhibit impaired nucleotide excision repair (NER) and are expected to accumulate bulky DNA adducts when subjected to certain compounds (eg, heterocyclic amines). Multiple intestinal neoplasia (Min) mice (B6 Min/+ ) are particularly sensitive to low concentrations of mutagenic compounds in food. They develop intestinal tumors spontaneously, and the number and size of the tumors increase following exposure to 2-amino-1-methyl-6-phenylimidazo[4,5-b]py… Show more
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