Lack of efficacy of low-dose sitostanol therapy as an adjunct to a cholesterol-lowering diet in men with moderate hypercholesterolemia.
Plant sterols have been shown to reduce dietary cholesterol absorption and hence, total and low-density-lipoprotein (LDL)-cholesterol concentrations in humans. In this study the cholesterol-lowering effects of dietary supplementation with the hydrogenated plant sterol sitostanol (3 g/d) were tested in 33 men with moderate hypercholesterolemia who were consuming an outpatient diet in which dietary cholesterol was restricted to < 200 mg/d. Sitostanol therapy did not significantly lower LDL cholesterol compared with the diet alone. Similarly, sitostanol therapy in conjunction with a cholesterol-lowering regimen of diet and 8 g cholestyramine did not significantly lower LDL-cholesterol concentrations. Hence, although previous reports have suggested that low-dose sitostanol therapy is an effective means of reducing LDL-cholesterol concentrations, its effectiveness may be attenuated when the diet is low in cholesterol.
Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas 75235-9052.
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Denke
D000328:Adult; D000368:Aged; D002791:Cholesterol, Dietary / Q000008:administration & dosage / Q000097:blood*; D002792:Cholestyramine Resin / Q000008:administration & dosage / Q000627:therapeutic use*; D004305:Dose-Response Relationship, Drug; D004359:Drug Therapy, Combination; D006801:Humans; D006937:Hypercholesterolemia / Q000178:diet therapy*; D008297:Male; D008875:Middle Aged; D012855:Sitosterols / Q000008:administration & dosage / Q000627:therapeutic use*
D002791:Cholesterol, Dietary; D012855:Sitosterols; D002792:Cholestyramine Resin; C021255:stigmastanol