Document Detail


Effects of different adrenergic blockades on the stress resistance of Wistar rats.
MedLine Citation:
PMID:  22306185     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The coordinated responses of the sympathoadreno-medullary (SAM) system and hypothalamic-pituitary-adrenal (HPA) axis could improve the organism's capacity to cope with stress, but its underlying mechanism is still unclear. In the present study, 32 Wistar rats were employed and divided into four groups: control, CUMS, PROP and PRAZ. After the chronic unpredicted mild stress (CUMS) model was built in the latter three groups, all animals were exposed to inescapable footshock. We found that α(1)-adrenoceptor antagonist prazosin (PRAZ) administration could improve behavior changes, reduce the cellular impairment in brain and inhibit the hyperfunction of HPA axis induced by CUMS exposure. Moreover, it decreased the heat shock protein 70 and inducible nitric oxide synthase expression in different brain areas as subsequently exposed to acute stress. In conclusion, α1-adrenoceptor may play a major role in regulating the coordinated responses between two physiological axes and improve the stress resistance.
Authors:
Le Jin Yang; Xin Liu; De Xiang Liu; Hong Jiang; Xue Qin Mao; Chao Wang; Fang Pan
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-1-28
Journal Detail:
Title:  Neuroscience letters     Volume:  -     ISSN:  1872-7972     ISO Abbreviation:  -     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-2-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7600130     Medline TA:  Neurosci Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012. Published by Elsevier Ireland Ltd.
Affiliation:
Institute of Medical Psychology, Shandong University Medical School, Jinan 250012, PR China.
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