Document Detail


Central effects of various ligands on drinking behavior in eels acclimated to seawater.
MedLine Citation:
PMID:  12517986     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Intracranial injection of eel angiotensin II (eANG II, 5x10(-13)-5x10(-8) mol), acetylcholine (ACh, 5x10(-12)-5x10(-9) mol), substance P (5x10(-10) mol) and isoproterenol (a beta-adrenoceptor agonist, 5x10(-11)-5x10(-9) mol) enhanced water intake in the seawater eel. The effects of eANG II, ACh and isoproterenol were dose-dependent. By contrast, water intake was inhibited by intracranial injection of eel atrial natriuretic peptide (eANP, 5x10(-13)-5x10(-10) mol), serotonin (5-HT, 5x10(-12)-5x10(-8) mol), ghrelin (5x10(-12)-5x10(-10) mol), gamma-amino butyric acid (GABA, 5x10(-11)-5x10(-8) mol), prolactin (PRL, 5x10(-10)-5x10(-9) mol), arginine vasotocin (AVT, 5x10(-12) mol), vasoactive intestinal peptide (VIP, 5x10(-11) mol), noradrenaline (5x10(-9) mol l(-1)) and phenylephrine (alpha-adrenoceptor agonist, 5x10(-11)-5x10(-9) mol). The inhibitory effects of eANP, 5-HT, ghrelin, GABA, PRL and phenylephrine were dose-dependent. The intracranial stimulatory effect of eANG II was relatively long-lasting compared with the intravenous effect. The stimulatory effect of intravenous eANG II disappeared immediately, and was followed by an inhibition, which could be well explained by an increase in eANP secretion from the atrium.
Authors:
Tomohiro Kozaka; Yasuaki Fujii; Masaaki Ando
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of experimental biology     Volume:  206     ISSN:  0022-0949     ISO Abbreviation:  J. Exp. Biol.     Publication Date:  2003 Feb 
Date Detail:
Created Date:  2003-01-08     Completed Date:  2003-09-23     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0243705     Medline TA:  J Exp Biol     Country:  England    
Other Details:
Languages:  eng     Pagination:  687-92     Citation Subset:  IM    
Affiliation:
Laboratory of Integrative Physiology, Faculty of Integrated Arts and Sciences, Hiroshima University, Higashi-Hiroshima 739-8521, Japan.
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MeSH Terms
Descriptor/Qualifier:
Acclimatization / physiology*
Acetylcholine / pharmacology
Angiotensin II / pharmacology
Animals
Atrial Natriuretic Factor / pharmacology
Drinking Behavior / drug effects,  physiology*
Eels / physiology*
Ghrelin
Isoproterenol / pharmacology
Ligands*
Peptide Hormones / pharmacology
Phenylephrine / pharmacology
Prolactin / pharmacology
Seawater*
Serotonin / pharmacology
Substance P / pharmacology
Vasoactive Intestinal Peptide / pharmacology
Vasotocin / pharmacology
gamma-Aminobutyric Acid / pharmacology
Chemical
Reg. No./Substance:
0/Ghrelin; 0/Ligands; 0/Peptide Hormones; 11128-99-7/Angiotensin II; 33507-63-0/Substance P; 37221-79-7/Vasoactive Intestinal Peptide; 50-67-9/Serotonin; 51-84-3/Acetylcholine; 56-12-2/gamma-Aminobutyric Acid; 59-42-7/Phenylephrine; 7683-59-2/Isoproterenol; 85637-73-6/Atrial Natriuretic Factor; 9002-62-4/Prolactin; 9034-50-8/Vasotocin

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


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