title: Comparative studies on bioaccumulation of PCDDs and PCDFs in C57BL/6 and DBA/2 mice treated with a mixture by oral administration.
abstract: To determine the cause of the extremely high accumulative potency of OCDD in human tissues, EROD activity and accumulation of 2,3,7,8-chlorine substituted PCDDs and PCDFs in liver of C57BL/6 and DBA/2 mice administered these chemicals orally were measured during a period of 28 days. Consequently, in both C57BL/6 mice with high EROD induction and DBA/2 mice with low EROD induction, there was no high accumulation of OCDD similar to that observed in human tissues. In addition, the C57BL/6 mice accumulated larger amounts of these chemicals in their liver than did the DBA /2 mice.
authors.affiliation: Faculty of Pharmaceutical Sciences, Setsunan University, Osaka, Japan.
authors.forename: O
authors.initials: O
authors.lastname: Aozasa
authors.forename: S
authors.initials: S
authors.lastname: Ohta
authors.forename: Y
authors.initials: Y
authors.lastname: Mase
authors.forename: H
authors.initials: H
authors.lastname: Miyata
mesh_terms: D000284:Administration, Oral; D000818:Animals; D001572:Benzofurans / Q000008:administration & dosage / Q000493:pharmacokinetics*; D002244:Carbon; D060729:Coal Ash; D019363:Cytochrome P-450 CYP1A1; D003577:Cytochrome P-450 Enzyme System / Q000096:biosynthesis; D004790:Enzyme Induction; D007220:Industrial Waste; D007536:Isomerism; D008099:Liver / Q000378:metabolism; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL; D008811:Mice, Inbred DBA; D008862:Microsomes, Liver / Q000201:enzymology; D010088:Oxidoreductases / Q000096:biosynthesis; D052638:Particulate Matter; D000072317:Polychlorinated Dibenzodioxins / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000493:pharmacokinetics; D011108:Polymers / Q000008:administration & dosage / Q000493:pharmacokinetics*; D051381:Rats; D013045:Species Specificity
chemical_list: D001572:Benzofurans; D060729:Coal Ash; D007220:Industrial Waste; D052638:Particulate Matter; D000072317:Polychlorinated Dibenzodioxins; D011108:Polymers; C016068:polychlorodibenzofuran; D002244:Carbon; D003577:Cytochrome P-450 Enzyme System; D010088:Oxidoreductases; D019363:Cytochrome P-450 CYP1A1