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Prior exercise training alleviates the lung inflammation induced by subsequent exposure to environmental cigarette smoke.
MedLine Citation:
PMID:  22448892     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
AIM: Environmental cigarette smoke (CS) contains many compounds that are harmful to the respiratory system and lead to chronic lung inflammation and other lung diseases. Exercise training is known to confer protection against diseases with chronic inflammation by reducing inflammatory response in human or experimental animals. In this study, we investigated the preventive effect of exercise training against lung inflammation induced by environmental CS. METHODS AND RESULTS: In this study, two groups of mice received air exposure with (the exercise group) or without (the control group) exercise training for 8 weeks and another two groups received air exposure for the first 4 weeks and CS exposure for the following 4 weeks with (the exercise+CS group) or without (the CS group) exercise training for 8 weeks. As compared with lung tissues of control and exercise groups, those of the CS group showed significantly increased bronchoalveolar-capillary permeability, inflammatory cell infiltration, epithelial thickening, expression of proliferating cell nuclear antigen, mucin 2, cytokines, chemokines, adhesion molecules and activation of NF-κB. These CS-induced pathophysiologic consequences were largely prevented in the exercise + CS group. CONCLUSION: Collectively, prior exercise training may protect against lung inflammation induced by environmental CS in mice by attenuating the activation of NF-κB and the production of inflammatory mediators.
Authors:
Y-B Yu; Y-W Liao; K-H Su; T-M Chang; S-K Shyue; Y R Kou; T-S Lee
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-3-26
Journal Detail:
Title:  Acta physiologica (Oxford, England)     Volume:  -     ISSN:  1748-1716     ISO Abbreviation:  -     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-3-27     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101262545     Medline TA:  Acta Physiol (Oxf)     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Authors Acta Physiologica © 2012 Scandinavian Physiological Society.
Affiliation:
Department of Physiology, School of Medicine, National Yang-Ming University, Taipei, Taiwan; Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.
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