Document Detail


Effects of rosiglitazone and pioglitazone on lipoprotein metabolism in patients with Type 2 diabetes and normal lipids.
MedLine Citation:
PMID:  19646194     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
AIMS: Previous studies have suggested that plasma lipids are affected differently by the peroxisome proliferators-activated receptor (PPAR)-gamma agonists pioglitazone and rosiglitazone. The aim of this study was to perform a quantitative lipoprotein turnover study to determine the effects of PPAR-gamma agonists on lipoprotein metabolism. METHODS: Twenty-four subjects with Type 2 diabetes treated with diet and/or metformin were randomized in a double-blind study to receive 30 mg pioglitazone, 8 mg rosiglitazone or placebo once daily for 3 months. Before and after treatment, absolute secretion rate (ASR) and fractional catabolic rate (FCR) of very low-density lipoprotein (VLDL), intermediate-density lipoprotein (IDL) and low-density lipoprotein (LDL) apolipoprotein B100 were measured with a 10-h infusion of 1-13C leucine. RESULTS: There was a significant decrease in glycated haemoglobin (HbA(1c)) and non-esterified fatty acids with pioglitazone (P = 0.01; P = 0.02) and rosiglitazone (P = 0.04; P = 0.003), respectively, but no change in plasma triglyceride or high-density lipoprotein (HDL) cholesterol. Following rosiglitazone, there was a significant reduction in VLDL apolipoprotein B100 (apoB) ASR (P = 0.01) compared with baseline, a decrease in VLDL triglyceride/apoB (P = 0.01), an increase in LDL2 cholesterol (P = 0.02) and a decrease in LDL3 cholesterol (P = 0.02). There was a decrease in VLDL triglyceride/apoB (P = 0.04) in the pioglitazone group. There was no significant difference in change in VLDL ASR or FCR among the three groups. CONCLUSIONS: In patients with Type 2 diabetes and normal lipids, treatment with rosiglitazone or pioglitazone had no significant effect on lipoprotein metabolism compared with placebo.
Authors:
A L Brackenridge; N Jackson; W Jefferson; M Stolinski; F Shojaee-Moradie; R Hovorka; A M Umpleby; D Russell-Jones
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Diabetic medicine : a journal of the British Diabetic Association     Volume:  26     ISSN:  1464-5491     ISO Abbreviation:  Diabet. Med.     Publication Date:  2009 May 
Date Detail:
Created Date:  2009-08-03     Completed Date:  2010-02-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8500858     Medline TA:  Diabet Med     Country:  England    
Other Details:
Languages:  eng     Pagination:  532-9     Citation Subset:  IM    
Affiliation:
Centre for Diabetes, Endocrinology and Research, Royal Surrey County Hospital, Guildford, Surrey GU2 7XX, UK.
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MeSH Terms
Descriptor/Qualifier:
Aged
Diabetes Mellitus, Type 2 / drug therapy,  metabolism*
Female
Hemoglobin A, Glycosylated / drug effects
Humans
Hypoglycemic Agents / therapeutic use*
Lipoproteins / drug effects*,  metabolism
Male
Middle Aged
Placebos
Statistics, Nonparametric
Thiazolidinediones / therapeutic use*
Chemical
Reg. No./Substance:
0/Hemoglobin A, Glycosylated; 0/Hypoglycemic Agents; 0/Lipoproteins; 0/Placebos; 0/Thiazolidinediones; 111025-46-8/pioglitazone; 122320-73-4/rosiglitazone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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