Document Detail


Clorgyline inhibits orexin-a-induced arousal in layer-type chicks.
MedLine Citation:
PMID:  21079379     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
We previously demonstrated that intracerebroventricular (ICV) injection of orexin-A induces arousal and increased metabolic turnover rates of norepinephrine, dopamine, and serotonin in layer (egg-type) chicks. Because monoamine oxidase-A (MAO-A) is a potent degrading enzyme of these monoamines, we hypothesized that orexin-A may mediate its arousal-inducing effects through MAO-A. Therefore, we simultaneously injected clorgyline, a specific inhibitor of MAO-A, with orexin-A and examined behavior of chicks. Behaviors associated with arousal were attenuated in the group of chicks that received clorgyline and orexin-A compared with those that received orexin-A alone. For the monoamine turnover rate, enhancement of the turnover rate of serotonin by orexin-A was attenuated by clorgyline. Therefore, we conclude that orexin-A-induced arousal is dependent upon monoamine neural activities stimulated by MAO-A in chicks.
Authors:
Sachiko Katayama; Kazutaka Shigemi; Mark A Cline; Mitsuhiro Furuse
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Publication Detail:
Type:  Journal Article     Date:  2010-11-10
Journal Detail:
Title:  The Journal of veterinary medical science / the Japanese Society of Veterinary Science     Volume:  73     ISSN:  0916-7250     ISO Abbreviation:  J. Vet. Med. Sci.     Publication Date:  2011 Apr 
Date Detail:
Created Date:  2011-04-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9105360     Medline TA:  J Vet Med Sci     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  471-4     Citation Subset:  IM    
Affiliation:
Laboratory of Regulation in Metabolism and Behavior, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University.
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