[Effects of several antilipemic agents on the activity of liver microsomal enzymes].
Male Wistar rats were treated daily for 7 days with clofibrate (250 mg/kg/d), benfluorex (50 mg/kg/d), tiadenol (200 mg/kg/d), nicoclonate (100 mg/kg/d) or hexanicit (50 mg/kg/d). The cytochrome P 450 level and ethoxycoumarin deethylase activity (ECDE) in liver microsomes were markedly increased by administration of clofibrate and slightly increased by tiadenol. Benfluorex only increased the activity of ECDE and nicoclonate and hexanicit had no effect. Clofibrate, tiadenol and benfluorex increased the activity of microsomal bilirubin UDP-glucuronosyltransferase. On the other hand, the nicotinic derivatives were ineffective. Tiadenol clearly enhanced the inductive effects of phenobarbital.
D015660:7-Alkoxycoumarin O-Dealkylase; D000818:Animals; D003577:Cytochrome P-450 Enzyme System / Q000378:metabolism; D004591:Electrophoresis, Polyacrylamide Gel; D014453:Glucuronosyltransferase; D006602:Hexosyltransferases / Q000378:metabolism; D000960:Hypolipidemic Agents / Q000494:pharmacology*; D008099:Liver / Q000187:drug effects; D008297:Male; D008862:Microsomes, Liver / Q000201:enzymology*; D009539:Nicotinic Acids / Q000494:pharmacology; D010105:Oxygenases / Q000378:metabolism*; D010634:Phenobarbital / Q000494:pharmacology; D011506:Proteins / Q000378:metabolism; D051381:Rats; D011919:Rats, Inbred Strains
D000960:Hypolipidemic Agents; D009539:Nicotinic Acids; D011506:Proteins; C019787:bilirubin glucuronoside glucuronosyltransferase; D003577:Cytochrome P-450 Enzyme System; D010105:Oxygenases; D015660:7-Alkoxycoumarin O-Dealkylase; D006602:Hexosyltransferases; D014453:Glucuronosyltransferase; D010634:Phenobarbital
Effets de divers hypolipoprotéinémiants sur l'activité des enzymes microsomales hépatiques.