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Effects of fibrates on C-reactive protein concentrations: a meta-analysis of randomized controlled trials
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Yongchen Hao
Published/Copyright:
November 18, 2011
Abstract
Background: The effects of fibrates on C-reactive protein (CRP) are controversial. This meta-analysis was conducted to synthesize the available clinical trial evidence and summarize the effects of fibrates on CRP concentrations. In addition, this study assessed the relationship between changes in CRP and lipid measures.
Methods: A systematic search was conducted of randomized controlled trials on the effects of fibrates on CRP concentrations in the PubMed, Embase and Cochrane Library Database up to January 2011. A meta-analysis was performed using a random effect model. Meta-regression analysis was employed to assess the relationships between average change in CRP and lipid profiles.
Results: Sixteen randomized controlled trials were included in the meta-analysis. Compared with placebo, treatment with fibrates significantly decreased CRP concentrations (weighted mean difference –0.47 mg/L, 95% confidence interval –0.93 to –0.01 mg/L, p=0.046). Fibrates significantly reduced CRP concentrations in trials with a higher baseline CRP concentrations (≥3 mg/L). There was a significant correlation between change in CRP and change in high-density lipoprotein cholesterol (regression coefficient or slope=–2.03, 95% CI –3.20 to –0.87, p=0.001).
Conclusions: Fibrates can reduce CRP concentrations and change in CRP was correlated with change in high-density lipoprotein cholesterol but not with triglyceride. These findings suggest that patients with dyslipidemia could benefit from fibrates treatment by CRP lowering and this benefit is associated with lipid profile improving.
Keywords: C-reactive protein; dyslipidemia; fibrates; high-density lipoprotein cholesterol; inflammation; meta-analysis
Received: 2011-8-14
Accepted: 2011-10-10
Published Online: 2011-11-18
Published in Print: 2012-02-01
©2012 by Walter de Gruyter Berlin Boston
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Keywords for this article
C-reactive protein;
dyslipidemia;
fibrates;
high-density lipoprotein cholesterol;
inflammation;
meta-analysis
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