title: Hexachlorobenzene induction of 2,4-diaminoanisole mutagenicity in vitro.
abstract: Hexachlorobenzene (HCB)-pretreatment of rats leads to an increase in liver microsomal 2,4-diaminoanisole activation to a mutagen after a dose of 10 mg/kg intraperitoneally and to an increase in ethylmorphine N-demethylase after a dose of 50 mg/kg intraperitoneally. 2,4-Diaminoanisole mutagenicity was increased 24 hrs after HCB-pretreatment, whereas ethylmorphine N-demethylase first increased after 48 hrs. There is a sex difference in the inducing effects of HCB on ethylmorphine N-demethylase, but not on 2,4-diaminoanisole mutagenicity. HCB-pretreatment also leads to increases in 2,4-diaminoansiole mutagenicity in the kidneys, but not in the lings or in foetal liver.
mesh_terms: D000818:Animals; D000840:Anisoles / Q000378:metabolism*; D002722:Chlorobenzenes / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D005037:Ethylmorphine-N-Demethylase / Q000378:metabolism; D005260:Female; D006581:Hexachlorobenzene / Q000008:administration & dosage / Q000494:pharmacology*; D007274:Injections, Intraperitoneal; D007668:Kidney / Q000187:drug effects / Q000201:enzymology / Q000378:metabolism; D008297:Male; D008862:Microsomes, Liver / Q000187:drug effects / Q000201:enzymology / Q000378:metabolism*; D009153:Mutagens; D010655:Phenylenediamines / Q000378:metabolism*; D011247:Pregnancy; D051381:Rats; D011919:Rats, Inbred Strains; D012737:Sex Factors; D013997:Time Factors
chemical_list: D000840:Anisoles; D002722:Chlorobenzenes; D009153:Mutagens; D010655:Phenylenediamines; D006581:Hexachlorobenzene; D005037:Ethylmorphine-N-Demethylase