LECITHIN - CHOLESTEROL ACYLTRANSFERASE ACTIVITY IN FAMILIAL HYPERCHOLESTEROLEMIA TREATED WITH SIMVASTATIN AND SIMVASTATIN PLUS LOW-DOSE COLESTIPOL

被引:13
作者
DESAGER, JP [1 ]
HORSMANS, Y [1 ]
HARVENGT, C [1 ]
机构
[1] CATHOLIC UNIV LOUVAIN,PHARMACOTHERAPIE LAB,53 AVE E MOUNIER,POB 5349,B-1200 BRUSSELS,BELGIUM
关键词
D O I
10.1002/j.1552-4604.1991.tb03734.x
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
In 19 patients with heterozygous familial hypercholesterolemia (FH), the effects of simvastatin (S) 20 mg/d, 40 mg/d, and 40 mg/d plus low-dose colestipol (10 g/d) on plasma lipids, plasma lipoproteins, and plasma lecithin: cholesterol acyltransferase (LCAT) activity were investigated after an original dose-range escalation/descalation design. The drug regimen was changed every 8 weeks. A significant reduction in total cholesterol and LDL-cholesterol was observed, reaching 39% and 54% for the drug combination (week 28), and total apoprotein B and LDL-apoprotein B were reduced by 39% and 50%, respectively. Triglycerides were significantly lowered by S alone (up to 29% with 40 mg/d). HDL-cholesterol increased during therapy but the cholesterol content in HDL2-HDL3 fractions (isolated by ultracentrifugation) did not change significantly during the different steps. The ratio LDL-C/HDL-C fell by 57% at week 28. Plasma LCAT activity expressed as FER was significantly enhanced by S alone (+ 33%), and a further increase on drug combination regimen (+ 58%) was observed. This effect could be considered as a consequence of the increased fractional clearance of LDL-C. It tended to be sustained during the descalation part of the study. Biochemical adverse effects were scarce and transient. In conclusion, the combination therapy increased the plasma LCAT/FER activity without a preferential enhancement in HDL2-C concentration. This original design allowed to define the most appropriate individual cholesterol-lowering drug dosage in FH patients.
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页码:537 / 542
页数:6
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