title: Mutagenicity of human urine caused by ingestion of fried ground beef.
abstract: On ingestion of fried ground beef by humans, the urinary mutagenicity, as examined by the Ames test, increased rapidly and then decreased during a period of 12 hr to resume the original low level. The excreted mutagens were shown to differ from 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline, the major mutagen in the cooked beef.
mesh_terms: D000818:Animals; D002417:Cattle; D006801:Humans; D008460:Meat; D009152:Mutagenicity Tests; D009153:Mutagens / Q000652:urine*
chemical_list: D009153:Mutagens