title: Dioxin in soil: bioavailability after ingestion by rats and guinea pigs.
abstract: Soil environmentally contaminated with 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) was given by gavage to guinea pigs and rats. The development of a characteristic clinicopathologic syndrome in guinea pigs, the induction of aryl hydrocarbon hydroxylase in rats, and the presence of TCDD in the livers of both species show that TCDD in soil exhibits high biological availability after ingestion.
mesh_terms: D000818:Animals; D001189:Aryl Hydrocarbon Hydroxylases / Q000096:biosynthesis; D001682:Biological Availability; D001835:Body Weight / Q000187:drug effects; D003577:Cytochrome P-450 Enzyme System / Q000378:metabolism; D004147:Dioxins / Q000378:metabolism*; D004435:Eating; D004790:Enzyme Induction; D005260:Female; D006168:Guinea Pigs; D007408:Intestinal Absorption; D008099:Liver / Q000187:drug effects; D008297:Male; D008862:Microsomes, Liver / Q000201:enzymology; D009929:Organ Size / Q000187:drug effects; D000072317:Polychlorinated Dibenzodioxins / Q000378:metabolism* / Q000633:toxicity; D051381:Rats; D011919:Rats, Inbred Strains; D012989:Soil Pollutants / Q000633:toxicity; D013950:Thymus Gland / Q000187:drug effects
chemical_list: D004147:Dioxins; D000072317:Polychlorinated Dibenzodioxins; D012989:Soil Pollutants; D003577:Cytochrome P-450 Enzyme System; D001189:Aryl Hydrocarbon Hydroxylases