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Strong exercise stress exacerbates dermatitis in atopic model mice, NC/Nga mice, while proper exercise reduces it.
MedLine Citation:
PMID:  21087324     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
Atopic dermatitis is well known to exacerbate by stress. How the influence of exercise stress on the skin symptoms in patients with atopic dermatitis has not been clarified. The purpose of our research is to investigate how different strength of exercise stress acts on atopic dermatitis. Specific pathogen-free (SPF) and conventional NC/Nga male mice were used for the experiments. Conventional mice but not SPF group spontaneously develop dermal symptom similar to that of patients with atopic dermatitis at their age of 7 weeks. They were given two types of stress, mild (20 m/min for 60 min) or strong exercise (25 m/min for 90 min), using a treadmill four times per day. The dermal symptom of the conventional group was strongly exacerbated by strong exercise but ameliorated by mild exercise. Under the standard experimental conditions, plasma concentrations of α-melanocyte-stimulating hormone (α-MSH), transforming growth factor-β (TGF-β) and substance P in conventional mice increased markedly with concomitant exacerbation of the symptom. The plasma concentrations of these proteins elevated after strong exercise but decreased after mild exercise. Under the conventional conditions, plasma levels of β-endorphin increased with time by some mechanisms enhanced by the mild exercise. These observations suggested that exercise-induced stress significantly affect the symptom of atopic dermatitis in a pivotal manner depending on the plasma levels of TGF-β, α-MSH, substance P and β-endorphin.
Authors:
Kumi Orita; Keiichi Hiramoto; Risa Inoue; Eisuke F Sato; Hiromi Kobayashi; Masamitsu Ishii; Masayasu Inoue
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Publication Detail:
Type:  Journal Article     Date:  2010-09-07
Journal Detail:
Title:  Experimental dermatology     Volume:  19     ISSN:  1600-0625     ISO Abbreviation:  Exp. Dermatol.     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-11-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9301549     Medline TA:  Exp Dermatol     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  1067-72     Citation Subset:  IM    
Copyright Information:
© 2010 John Wiley & Sons A/S.
Affiliation:
Department of Biochemistry and Molecular Pathology, Osaka City University Medical School, Abeno, Osaka, Japan.
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