title: Chronic toxicity of taurohyodeoxycholic acid in rats.
abstract: Fifty-two-week oral toxicity and 24-week intraperitoneal toxicity of a new synthetized biliary acid, taurohyodeoxycholic acid (Io, Praxis, CAS 2958-04-5), were investigated in rats. Taurohyodeoxycholic acid was orally administered at dose levels up to 500 mg/kg/d and intraperitoneally administered at dose levels up to 200 mg/kg/d. The treated animals showed no deviations from normality in mortality, physical appearance and general behavior. Food and water consumption and body weight gain of the treated groups did not differ from those of the control. No treatment-related changes were observed in hematology, serum biochemistry, urinalysis, organ weights and post-mortem macroscopic or histopathological examinations. No dose- or sex-related differences were observed. The no-effect dose level was estimated to be 500 mg/kg/d in the chronic oral toxicity study and 200 mg/kg/d in the intraperitoneal study.
authors.affiliation: Institute of Pharmacology II, University of Pavia, Italy.
authors.forename: M
authors.initials: M
authors.lastname: De Bernardi di Valserra
authors.forename: A S
authors.initials: AS
authors.lastname: Tripodi
authors.forename: S
authors.initials: S
authors.lastname: Contos
authors.forename: P
authors.initials: P
authors.lastname: Mattaboni
authors.forename: R
authors.initials: R
authors.lastname: Germogli
mesh_terms: D000284:Administration, Oral; D000818:Animals; D001774:Blood Chemical Analysis; D001835:Body Weight / Q000187:drug effects; D002756:Cholagogues and Choleretics / Q000097:blood / Q000633:toxicity* / Q000652:urine; D004326:Drinking / Q000187:drug effects; D004435:Eating / Q000187:drug effects; D005260:Female; D007274:Injections, Intraperitoneal; D008297:Male; D009929:Organ Size / Q000187:drug effects; D051381:Rats; D017207:Rats, Sprague-Dawley; D013657:Taurodeoxycholic Acid / Q000031:analogs & derivatives* / Q000097:blood / Q000633:toxicity / Q000652:urine
chemical_list: D002756:Cholagogues and Choleretics; C083510:taurohyodeoxycholic acid; D013657:Taurodeoxycholic Acid