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Effect of exercise training on interleukin-6, tumour necrosis factor alpha and functional capacity in heart failure.
MedLine Citation:
PMID:  21403878     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Background. We pooled data from four studies, to establish whether exercise training programs were able to modulate systemic cytokine levels of tumour necrosis factor-alpha (TNF-alpha) and interleukin-6 (IL-6). A second aim was to establish if differences in ExT regimens are related to degree of change in cytokines and peak VO(2). Methods. Data from four centres relating to training protocol, exercise capacity, and cytokine measures (TNF-alpha and IL-6) were pooled for analysis. Results. Data for 106 CHF patients were collated (98 men, age 62 ± 10 yrs, wt 79 ± 14 Kg). Patients were moderately impaired (peak VO(2) 16.9 ± 4.4 mls/kg/min), with moderate LV systolic dysfunction (EF 30 ± 6.9%), 78% (83) had ischaemic cardiomyopathy. After ExT, peak VO(2) increased 1.4 ± 3.4 ml/kg/min (P < .001), serum TNF-alpha decreased 1.9 ± 8.6 pg/ml (P = .02) and IL-6 was not significantly changed (0.5 ± 5.4 pg/ml, P = .32) for the whole group. Baseline and post-training peak VO(2) changes were not correlated with change in cytokine levels. Conclusions. Exercise training reduces levels TNF-alpha but not IL-6 in CHF. However, across a heterogenic patient group, change in peak VO(2) was not correlated with alterations in cytokine levels. While greater exercise volume (hours) was superior in improving peak VO(2), no particular characteristic of ExT regimes appeared superior in effecting change in serum cytokines.
Neil A Smart; Alf I Larsen; John P Le Maitre; Almir S Ferraz
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Publication Detail:
Type:  Journal Article     Date:  2011-02-27
Journal Detail:
Title:  Cardiology research and practice     Volume:  2011     ISSN:  2090-0597     ISO Abbreviation:  Cardiol Res Pract     Publication Date:  2011  
Date Detail:
Created Date:  2011-03-15     Completed Date:  2011-07-14     Revised Date:  2011-07-26    
Medline Journal Info:
Nlm Unique ID:  101516542     Medline TA:  Cardiol Res Pract     Country:  Egypt    
Other Details:
Languages:  eng     Pagination:  532620     Citation Subset:  -    
Faculty of Health Science, Bond University, QLD 4229, Australia.
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