title: Lack of mutagenicity of diphenylhydantoin in in vitro short-term tests.
abstract: The mutagenicity of diphenylhydantoin (DPH) and its major metabolite, 5-(p-hydroxyphenyl)-5-phenylhydantoin (HPPH), has been re-evaluated by the Ames test using Salmonella typhimurium and, for DPH only, by an in vitro cytogenetic test with human lymphocytes and a turbidimetric assay of tubulin polymerization. As negative results were obtained in all test systems used here, one has to conclude that DPH is devoid of mutagenic properties.
mesh_terms: D016604:Aflatoxin B1; D000348:Aflatoxins / Q000633:toxicity; D000818:Animals; D001711:Biotransformation; D002470:Cell Survival / Q000187:drug effects; D006801:Humans; D008214:Lymphocytes / Q000166:cytology / Q000187:drug effects; D008297:Male; D008862:Microsomes, Liver / Q000378:metabolism; D009152:Mutagenicity Tests; D009153:Mutagens; D009154:Mutation; D010672:Phenytoin / Q000031:analogs & derivatives / Q000633:toxicity*; D051381:Rats; D011919:Rats, Inbred Strains; D012486:Salmonella typhimurium / Q000187:drug effects
chemical_list: D000348:Aflatoxins; D009153:Mutagens; C027364:5-(3-hydroxyphenyl)-5-phenylhydantoin; D010672:Phenytoin; D016604:Aflatoxin B1