Document Detail


The regulation of adiponectin receptors expression by acute exercise in mice.
MedLine Citation:
PMID:  17647137     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Adiponectin is an adipocyte-derived factor that plays a pivotal role in lipid and glucose metabolism. Recently, two types of adiponectin receptors (AdipoR1 and AdipoR2) were identified. While, although physical exercise is useful for improving insulin sensitivity, the effect of physical exercise on adiponectin and adiponectin receptors are still unclear. In present study, we investigated whether acute exercise affects the plasma adiponectin concentration and expression of adiponectin receptor in skeletal muscle and liver in healthy mice C57BL/6. Following an acute exercise, plasma glucose, insulin, FFA, and adiponectin were measured. The mRNA levels of AdipR1 and AdipoR2 were also analyzed. Although acute exercise did not significantly change plasma adiponectin concentration at 2 hours or 18 hours after the exercise compared with control group, the expression levels of AdipoR1 significantly increased in both skeletal muscle (2H: 1.2-fold, p=0.0423, 18H: 1.4-fold, p=0.0006) and liver (2H: 1.3-fold, p=0.0448) compared with control group. In contrast, the level of AdipoR2 mRNA was decreased in skeletal muscle (18H: 0.8-fold, p=0.027) and liver (2H: 0.9-fold, p=0.1551) compared with control group. Additionally, the transcription factor Foxo1 mRNA expression level was also significantly increased in skeletal muscle (2H: 10-fold, p=0.0001, 18H: 3-fold, p=0.0424) and liver (2H: 2-fold, p=0.002, 18H: 2-fold, p=0.0014) compared with control group by the acute exercise. These findings suggest that acute exercise affects the expression level of adiponectin receptors, and an increase of Foxo1 expression might be relative to regulate adiponectin receptors.
Authors:
H Huang; K T Iida; H Sone; R Ajisaka
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Experimental and clinical endocrinology & diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association     Volume:  115     ISSN:  0947-7349     ISO Abbreviation:  Exp. Clin. Endocrinol. Diabetes     Publication Date:  2007 Jul 
Date Detail:
Created Date:  2007-07-24     Completed Date:  2007-10-18     Revised Date:  2012-04-09    
Medline Journal Info:
Nlm Unique ID:  9505926     Medline TA:  Exp Clin Endocrinol Diabetes     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  417-22     Citation Subset:  IM    
Affiliation:
Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba-shi, Ibaraki, Japan. koukohh@med.taiiku.tsukuba.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Adiponectin / blood
Animals
Blood Chemical Analysis
Forkhead Transcription Factors / genetics,  metabolism
Gene Expression Regulation*
Liver / metabolism
Mice
Mice, Inbred C57BL
Muscle, Skeletal / metabolism
Physical Conditioning, Animal / physiology*
Physical Exertion / physiology
Receptors, Adiponectin
Receptors, Cell Surface / genetics*,  metabolism
Chemical
Reg. No./Substance:
0/Adiponectin; 0/Adipoq protein, mouse; 0/Forkhead Transcription Factors; 0/Foxo1 protein, mouse; 0/Receptors, Adiponectin; 0/Receptors, Cell Surface; 0/adiponectin receptor 1, mouse; 0/adiponectin receptor 2, mouse

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