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Alpha-melanocyte stimulating hormone plays an important role in the regulation of food intake by the central melanocortin system in chicks.
MedLine Citation:
PMID:  21402117     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Proopiomelanocortin (POMC, a precursor of melanocortin peptides) neurons in the hypothalamus play an important role in the central regulation of food intake in mammals. There is evidence that human melanocortin peptides alpha-, beta- and gamma2-melanocyte-stimulating hormone (α-, β- and γ2-MSH) significantly decreased food intake in chickens. However, the amino acid sequences of β- and γ2-MSH of chickens are different from those of humans whereas the amino acid sequence of α-MSH is conserved between these species. In the present study, we examined the effects of the central administration of α-, chicken β-, and chicken γ2-MSH on food intake in chicks. Central administration of α-MSH significantly suppressed food intake in chicks. In contrast, β- and γ2-MSH did not influence food intake in chicks. Central administration of HS014, a melanocortin 4 receptor antagonist, significantly reversed the anorexigenic action of α-MSH, suggesting that this action is mediated by the melanocortin 4 receptor in chicks as well as in mammals. These results suggest that α-MSH may play an important role in the regulation of food intake by the central melanocortin system in chicks.
Authors:
Takaoki Saneyasu; Kazuhisa Honda; Hiroshi Kamisoyama; Yoko Nakayama; Kengo Ikegami; Shin Hasegawa
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-11
Journal Detail:
Title:  Peptides     Volume:  -     ISSN:  1873-5169     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008690     Medline TA:  Peptides     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier Inc.
Affiliation:
Department of Bioresource Science, Graduate School of Agricultural Science, Kobe University, Kobe 657-8501, Japan.
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