Document Detail


Freewheel training decreases pro- and increases anti-inflammatory cytokine expression in mouse intestinal lymphocytes.
MedLine Citation:
PMID:  20510350     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Intestinal inflammation and inflammatory bowel diseases (IBD) may occur due to imbalances in pro- and anti-inflammatory cytokines. Long-term exercise reduces the risk for IBD. The purpose of this study was to determine the effect of long-term wheel running in healthy mice on intestinal lymphocyte (IL) expression of pro- and anti-inflammatory cytokine proteins. In addition, pro- and anti-apoptotic proteins and the percentage of early apoptotic, late apoptotic, and dead IL were measured with wheel running and following acute aerobic exercise. Female C57BL/6 mice were given 16 weeks of wheel running (WR) or a control condition (No WR) and at the end of training were assigned to a single acute treadmill exercise session with sacrifice immediately, 2h after, or 24h after completion of exercise, or were not run (sedentary) with respect to the acute treadmill exercise. Intestinal lymphocytes were assessed for pro-(TNF-α, IL-17) and anti-(IL-10) inflammatory, and pleiotropic (IL-6) cytokines, and pro-(caspase 3 and 7, AIF) and anti-(Bcl-2) apoptotic protein expression. The percent of early (Annexin(+)) and late (Annexin(+)PI(+)) apoptotic, and dead (PI(+)) IL was determined. WR mice had lower TNF-α and caspase 7, and higher IL-10 and IL-6 expression in IL than No WR mice. A single exposure to intense aerobic treadmill exercise increased pro-(TNF-α) and anti-(IL-10) inflammatory cytokine and pro-apoptotic protein (caspase 3) expression in IL. The percent of early and late apoptotic, and dead IL were higher after acute exercise. Although long-term voluntary wheel running did not protect against acute exercise-induced changes in IL cytokine expression or apoptosis, there was an overall 'anti-inflammatory' effect observed as a result of wheel running in healthy mice.
Authors:
L Hoffman-Goetz; N Pervaiz; N Packer; J Guan
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-05-25
Journal Detail:
Title:  Brain, behavior, and immunity     Volume:  24     ISSN:  1090-2139     ISO Abbreviation:  Brain Behav. Immun.     Publication Date:  2010 Oct 
Date Detail:
Created Date:  2010-09-14     Completed Date:  2011-01-18     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8800478     Medline TA:  Brain Behav Immun     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1105-15     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Inc. All rights reserved.
Affiliation:
Department of Health Studies and Gerontology, University of Waterloo, Waterloo, Ontario, Canada. lhgoetz@uwaterloo.ca
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MeSH Terms
Descriptor/Qualifier:
Animals
Apoptosis / immunology
Apoptosis Inducing Factor / metabolism
Blotting, Western
Caspase 3 / metabolism
Caspase 7 / metabolism
Cytokines / immunology,  metabolism*
Down-Regulation / immunology
Female
Interleukin-10 / metabolism
Interleukin-17 / metabolism
Interleukin-6 / metabolism
Intestines / cytology,  immunology*
Lymphocytes / immunology*
Mice
Mice, Inbred C57BL
Motor Activity / immunology*
Physical Conditioning, Animal / psychology
Proto-Oncogene Proteins c-bcl-2 / metabolism
Running / psychology
Time Factors
Tumor Necrosis Factor-alpha / metabolism
Up-Regulation / immunology
Chemical
Reg. No./Substance:
0/Apoptosis Inducing Factor; 0/Cytokines; 0/Interleukin-17; 0/Interleukin-6; 0/Pdcd8 protein, mouse; 0/Proto-Oncogene Proteins c-bcl-2; 0/Tumor Necrosis Factor-alpha; 130068-27-8/Interleukin-10; EC 3.4.22.-/Caspase 3; EC 3.4.22.-/Caspase 7

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


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