Document Detail


Mesotocin increases the sensitivity of the hen oviduct uterus to arginine vasotocin.
MedLine Citation:
PMID:  18809873     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The present study was performed to elucidate whether mesotocin (MT), one of avian neurohypophysial hormones, relates to the action of arginine vasotocin (AVT) on oviposition of hens. The ratio of AVT-induced oviposition was increased when 1 microg/hen of MT was injected together with AVT. An intravenous injection of 1 microg/hen of MT caused an increase in the binding affinity of the uterine AVT receptor and a decrease in the binding capacity. Blood MT concentrations measured by RIA increased approximately 1 min before oviposition during the period of the bearing-down behavior, but the AVT concentration did not change at this time. The blood AVT concentration dramatically increased within 1 min just after oviposition. The results suggest that MT may have an effect of enhancing the inducing oviposition by AVT through the increase in the sensitivity of the uterus to AVT at oviposition in hens.
Authors:
T Takahashi; M Kawashima
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Poultry science     Volume:  87     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  2008 Oct 
Date Detail:
Created Date:  2008-09-23     Completed Date:  2008-11-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  2107-11     Citation Subset:  IM    
Affiliation:
Department of Avian Endocrinology, Gifu University, Yanagido, Gifu 501-1193, Japan.
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MeSH Terms
Descriptor/Qualifier:
Animals
Body Weight
Chickens
Female
Oviducts / drug effects,  physiology*
Oviposition / drug effects,  physiology*
Oxytocin / analogs & derivatives*,  blood,  pharmacology
Receptors, Vasopressin / drug effects,  physiology*
Uterus / drug effects,  physiology*
Vasotocin / physiology*
Chemical
Reg. No./Substance:
0/Receptors, Vasopressin; 0/vasotocin receptor; 362-39-0/mesotocin; 50-56-6/Oxytocin; 9034-50-8/Vasotocin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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