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  • Title: Impact of short-term low-dose atorvastatin on low-density lipoprotein and high-density lipoprotein subfraction phenotype.
    Author: Xu RX, Guo YL, Li XL, Li S, Li JJ.
    Journal: Clin Exp Pharmacol Physiol; 2014 Jul; 41(7):475-81. PubMed ID: 24739131.
    Abstract:
    Statins can significantly reduce low-density lipoprotein-cholesterol (LDL-C) and modestly raise or not alter high-density lipoprotein-cholesterol (HDL-C). However, their impact on high-density lipoprotein (HDL) and low-density lipoprotein (LDL) subfractions has been less examined. The aim of the present study was to investigate the short-term impact of low-dose atorvastatin on HDL and LDL subfractions in humans. In this randomized study, data from 52 subjects were analysed. Thirty-seven patients with atherosclerosis were randomized to treatment with atorvastatin 10 mg/day (n = 17) or 20 mg/day (n = 20) for 8 weeks, with 15 healthy subjects without therapy used as a control group. The lipid profile and lipoprotein subfractions were determined using the Lipoprint system at baseline and at 8 weeks. The data suggest that atorvastatin treatment (10 and 20 mg/day) for 8 weeks significantly decreases LDL-C levels and reduces the cholesterol concentration of all LDL subfractions, which is accompanied by an increase of the mean LDL particle size. Although 10 mg/day atorvastatin treatment for 8 weeks had no impact on the HDL subfraction, 20 mg/day atorvastatin for 8 weeks significantly increased the cholesterol concentration of large HDL particles and decreased the cholesterol concentration of small HDL particles without changing serum HDL-C levels in patients with atherosclerosis. Therefore, the results suggest that 20 mg/day atorvastatin treatment for 8 weeks may result in a favourable modification of the HDL subfraction phenotype in addition to its effects on the cholesterol concentration of all LDL subfractions and mean LDL particle size.
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