title: Ellipticines as potent inhibitors of microsomes-dependent chemical mutagenesis.
abstract: 9-Hydroxyellipticine (9-OHE), an inhibitor of microsomal monooxygenase activities has been shown to exert a large or even complete decrease of the mutagenicity, on the Salmonella strains of a great number of compounds (aromatic amines, polycyclic aromatic hydrocarbons, fungal toxins, azo compounds, tobacco smoke condensate). 9-OHE and 9-fluoroellipticine are more potent inhibitors than ellipticine itself. The inhibitions exerted by 9-OHE are not even equalled by 10-fold higher doses of 7,8-benzoflavone (7,8-BF). There is a good correlation between these data and the interaction properties of ellipticines with microsomal cytochromes P-450.
mesh_terms: D000470:Alkaloids / Q000494:pharmacology*; D000818:Animals; D004353:Drug Evaluation, Preclinical; D004611:Ellipticines / Q000494:pharmacology*; D008297:Male; D008862:Microsomes, Liver / Q000378:metabolism*; D009153:Mutagens; D009154:Mutation / Q000187:drug effects*; D051381:Rats; D012486:Salmonella typhimurium / Q000187:drug effects
chemical_list: D000470:Alkaloids; D004611:Ellipticines; D009153:Mutagens