Document Detail


Aminopeptidase A antiserum inhibits intracerebroventricular angiotensin II-induced dipsogenic and pressor responses.
MedLine Citation:
PMID:  9030406     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Angiotensin II increases drinking and blood pressure when administered intracerebroventricularly. Intracerebroventricular injections of antiserum with anticatalytic activity against aminopeptidase A, the principal enzyme that metabolizes angiotensin II to angiotensin III, reduced the drinking and blood pressure responses to 10 pmol angiotensin II by 73% and 59%, respectively. APA antiserum had no effect on responses to angiotensin III administered intracerebroventricularly. A Glu-thiol inhibitor of aminopeptidase A also reduced angiotensin II-induced drinking. These results suggest that metabolism of angiotensin II to angiotensin III is an obligatory activation step for the brain angiotensin system.
Authors:
L Song; S Wilk; D P Healy
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Brain research     Volume:  744     ISSN:  0006-8993     ISO Abbreviation:  Brain Res.     Publication Date:  1997 Jan 
Date Detail:
Created Date:  1997-04-15     Completed Date:  1997-04-15     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0045503     Medline TA:  Brain Res     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  1-6     Citation Subset:  IM    
Affiliation:
Department of Pharmacology, Mount Sinai School of Medicine of the City University of New York, NY 10029, USA.
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MeSH Terms
Descriptor/Qualifier:
Aminopeptidases / immunology*
Angiotensin II / immunology,  pharmacology*
Angiotensin III / immunology,  pharmacology
Animals
Antibodies, Blocking / pharmacology
Antibody Specificity
Blood Pressure / drug effects
Brain / drug effects,  enzymology*
Glutamyl Aminopeptidase
Injections, Intraventricular
Male
Metalloendopeptidases / immunology
Rats
Rats, Sprague-Dawley
Vasoconstrictor Agents / immunology,  pharmacology*
Grant Support
ID/Acronym/Agency:
HL42585/HL/NHLBI NIH HHS; HL50685/HL/NHLBI NIH HHS; NS17392/NS/NINDS NIH HHS
Chemical
Reg. No./Substance:
0/Antibodies, Blocking; 0/Vasoconstrictor Agents; 11128-99-7/Angiotensin II; 12687-51-3/Angiotensin III; EC 3.4.11.-/Aminopeptidases; EC 3.4.11.7/Glutamyl Aminopeptidase; EC 3.4.24.-/Metalloendopeptidases

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


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