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Ezetimibe beneficially influences fasting and postprandial triglyceride-rich lipoproteins in type 2 diabetes.
MedLine Citation:
PMID:  21481394     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
INTRODUCTION: Type 2 diabetes is associated with atherogenic abnormalities of postprandial triglyceride-rich lipoproteins. This study evaluated whether ezetimibe, by inhibiting intestinal cholesterol absorption, influences chylomicrons and VLDL particles at fasting and after a standard meal. METHODS: By a double blind cross-over design 15 subjects with type 2 diabetes and hypercholesterolaemia followed in random order a 6-week treatment with ezetimibe 10mg+simvastatin 20mg (EZE+S) or placebo+simvastatin 20mg (P+S) and, after a 6-week wash-out period, crossed over to the other treatment (NCT00699023). At the end of each period lipids, apoB-48, and apoB-100 concentrations in plasma and lipoprotein fractions (separated by discontinuous density gradient ultracentrifugation) were determined before and over 6h following a high-fat test meal. RESULTS: Compared with P+S, EZE+S induced, (a) beside a greater decrease in LDL cholesterol, (b) a significant decrease in chylomicron lipid content both at fasting and postprandially (4.4±2.7 vs. 8.3±8.7mg/dl×6h total AUC for cholesterol, p<0.05; 18±12 vs. 29±24mg/dl triglyceride concentrations at 6h, p<0.05), (c) a significant decrease in chylomicron postprandial apoB-48 (0.03±0.03 vs. 0.09±0.08mg/l at 4h, p<0.05), and (d) significant fasting and postprandial decreases in the cholesterol content of VLDL, IDL, and LDL, as shown by the significant reduction of the cholesterol/triglyceride ratio in these lipoproteins. CONCLUSIONS: A 6-week treatment with ezetimibe and simvastatin, compared to simvastatin alone, positively influences lipoprotein profile both at fasting and postprandially in type 2 diabetic patients by favouring the production of cholesterol-poor chylomicrons and VLDL particles that have less atherogenic potential.
Authors:
Lutgarda Bozzetto; Giovanni Annuzzi; Giuseppina Della Corte; Lidia Patti; Paola Cipriano; Anna Mangione; Gabriele Riccardi; Angela A Rivellese
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-15
Journal Detail:
Title:  Atherosclerosis     Volume:  -     ISSN:  1879-1484     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-4-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0242543     Medline TA:  Atherosclerosis     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier Ireland Ltd. All rights reserved.
Affiliation:
Department of Clinical and Experimental Medicine, Federico II University, Naples, Italy.
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