title: Natural history of TCDD-induced liver lesions in rats as observed by transmission electron microscopy during a 32-week period after a single intraperitoneal injection.
abstract: Forty-two male rats were injected with a single intraperitoneal dose of TCDD in acetone and corn oil and sacrificed after 2, 4, 8, 16, 24, and 32 weeks, to study the long-term effects of a single injection. The liver lesions become progressively worse up to the 16th week and appear thereafter to slowly regress.
mesh_terms: D000818:Animals; D004147:Dioxins / Q000633:toxicity*; D007274:Injections, Intraperitoneal; D008099:Liver / Q000187:drug effects* / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron; D000072317:Polychlorinated Dibenzodioxins / Q000633:toxicity*; D051381:Rats; D011919:Rats, Inbred Strains; D013997:Time Factors
chemical_list: D004147:Dioxins; D000072317:Polychlorinated Dibenzodioxins