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Clinica chimica acta; international journal of clinical chemistry

Effect of simvastatin on the apparent size of LDL particles in patients with type IIB hyperlipoproteinemia.


PMID 1777975

Abstract

After 15 weeks of simvastatin therapy (20 mg/day), low density lipoprotein particle size in sera of 16 patients with type IIb hyperlipoproteinemia increased significantly from 233 +/- 5.0 A to 237 +/- 7.0 A (P less than 0.05), analyzed by 2-16% polyacrylamide gradient gel electrophoresis. Under simvastatin therapy the concentrations of total cholesterol, total triglyceride, very low density lipoprotein cholesterol and triglyceride, low density lipoprotein cholesterol and apolipoprotein B in serum fell significantly by 30%, 30%, 43%, 28%, 36% and 26%, respectively, and the concentration of high density lipoprotein cholesterol rose significantly by 14%. The changes of low density lipoprotein particle size induced by simvastatin therapy were correlated best with the changes of very low density lipoprotein triglyceride concentration (r2 = 0.438, P less than 0.01). Our results suggest that simvastatin therapy, additionally to a reduction of the serum cholesterol concentration, increases low density lipoprotein particle size which may contribute to reduction of the risk of coronary heart disease in patients with type IIb hyperlipoproteinemia.

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L7914
Lipoprotein, low density from human plasma, ≥95% (SDS-PAGE), solution