Cholestyramine treatment in early life. Immediate and delayed effects on arterial cholesteryl ester metabolizing enzymes in the rabbit.
Feeding of cholestyramine-enriched diet to weaned normocholesterolemic rabbits resulted in: lowering of plasma cholesterol and distinctly decreased activity of aortic acyl-CoA cholesterol acyl transferase with no changes in aortic acid and neutral cholesteryl esterase activity. At 9 weeks after cessation of cholestyramine treatment enhanced activity of both aortic esterases were noted despite normalization of plasma cholesterol. No evidence for the presence of plasma factor influencing esterases activity was found in lipoprotein-free serum from cholestyramine-treated animals. These studies show that cholestyramine treatment in early life causes immediate and delayed changes in rabbit arterial cholesteryl ester metabolizing enzymes.
D000818:Animals; D001013:Aorta, Thoracic / Q000187:drug effects* / Q000378:metabolism; D002784:Cholesterol / Q000097:blood; D002788:Cholesterol Esters / Q000378:metabolism*; D002792:Cholestyramine Resin / Q000494:pharmacology*; D008297:Male; D011817:Rabbits; D002787:Sterol Esterase / Q000378:metabolism; D002785:Sterol O-Acyltransferase / Q000037:antagonists & inhibitors; D013997:Time Factors
D002788:Cholesterol Esters; D002792:Cholestyramine Resin; D002784:Cholesterol; D002785:Sterol O-Acyltransferase; D002787:Sterol Esterase