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Database of Abstracts of Reviews of Effects (DARE): Quality-assessed Reviews [Internet]. York (UK): Centre for Reviews and Dissemination (UK); 1995-.

Database of Abstracts of Reviews of Effects (DARE): Quality-assessed Reviews [Internet].

Exercise intervention and inflammatory markers in coronary artery disease: a meta-analysis

Review published: 2012.

Bibliographic details: Swardfager W, Herrmann N, Cornish S, Mazereeuw G, Marzolini S, Sham L, Lanctot KL.  Exercise intervention and inflammatory markers in coronary artery disease: a meta-analysis. American Heart Journal 2012; 163(4): 666-676. [PubMed: 22520533]


BACKGROUND: Inflammatory activity plays a role in the development and progression of coronary artery disease (CAD), and exercise confers survival benefit. We performed a meta-analysis of changes in inflammatory biomarkers over the course of exercise interventions in patients with CAD.

METHODS: We searched MEDLINE, Embase, the Cochrane Collaboration, AMED, and CINAHL for studies reporting peripheral inflammatory biomarker concentrations before and after exercise interventions of ≥ 2 weeks in patients with CAD. Data were summarized using standard mean differences (SMD) and 95% CIs.

RESULTS: Twenty-three studies were included. Concentrations of C-reactive protein (CRP; SMD -0.345, 95% CI -0.444 to -0.246, n = 1,466, P < .001), interleukin 6 (SMD -0.546, 95% CI -0.739 to -0.353, n = 280, P < .001), fibrinogen (SMD -0.638, 95% CI -0.953 to -0.323, n = 247, P < .001), and vascular cell adhesion molecule 1 (SMD -0.413, 95% CI -0.778 to -0.048, n = 187, P = .027) were lower postintervention. Higher total cholesterol (B = -0.328, 95% CI -0.612 to -0.043, P = .026) and higher total/high-density lipoprotein cholesterol ratios (B = -0.250, 95% CI -0.425 to -0.076, P = .008) at baseline were associated with greater reductions in CRP. In controlled studies, follow-up concentrations of CRP (SMD -0.500, 95% CI -0.844 to -0.157, n(exercise/control) = 485/284, P = .004), and fibrinogen (SMD -0.544, 95% CI -1.058 to -0.030, n(exercise/control) = 148/100, P = .038) were lower in subjects who exercised compared with controls.

CONCLUSION: Exercise training is associated with reduced inflammatory activity in patients with CAD. C-reactive protein and fibrinogen have provided the strongest evidence. Higher baseline CRP and adverse baseline lipid profiles predicted greater reductions in CRP.

Copyright © 2012 Mosby, Inc. All rights reserved.

CRD has determined that this article meets the DARE scientific quality criteria for a systematic review.

Copyright © 2014 University of York.

PMID: 22520533

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