title: Hexachlorobenzene-induced renal maldevelopment in CD-1 mice and CD rats.
abstract: Enlarged kidneys and hydronephrosis were observed in day-15 post-partum (pp) CD-1 mouse pups from dams treated with 10 or 50 mg hexachlorobenzene (HCB) per kg body weight (bw) on days 6-16 of gestation. Additional studies showed that enlarged kidneys occurred also on days 1 and 20 pp. CD rat pups from dams exposed to 10 mg HCB per kg bw on days 15-20 of gestation had enlarged kidneys on day 5 pp but not on days 10 or 20. In the CD rat, there was a significant increase in the kidney:bw ratio and the liver:bw ratio for the HCB-exposed pups at all three time periods. Pre- and postnatal exposure to HCB resulted in renal maldevelopment in CD-1 mice and CD rats in terms of enlarged kidneys and hydronephrosis.
mesh_terms: D000014:Abnormalities, Drug-Induced / Q000209:etiology*; D000818:Animals; D001835:Body Weight / Q000187:drug effects; D002722:Chlorobenzenes / Q000633:toxicity*; D005260:Female; D006581:Hexachlorobenzene / Q000633:toxicity*; D007668:Kidney / Q000002:abnormalities* / Q000187:drug effects; D008099:Liver / Q000187:drug effects; D051379:Mice; D009929:Organ Size / Q000187:drug effects; D011247:Pregnancy; D051381:Rats
chemical_list: D002722:Chlorobenzenes; D006581:Hexachlorobenzene