Document Detail


Plasma vasopressin and atrial natriuretic factor during haemorrhage: influence of cardiac and aortic receptors.
MedLine Citation:
PMID:  2551549     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
1. The changes in plasma concentrations of immunoreactive vasopressin (iVP) and atrial natriuretic factor (iANF) in response to haemorrhage (10-30% blood volume) were measured in 10 anaesthetized rabbits before and after cardiac receptor denervation (vagal nerve section). Carotid sinus pressure was maintained constant (60 mmHg) to eliminate any changing input from carotid baroreceptors. 2. Haemorrhage increased iVP before and after vagal nerve section indicating that withdrawal of input from aortic baroreceptors may have contributed to the increase in iVP. 3. Section of the vagus nerves attenuated the iVP response to haemorrhage. 4. There was no correlation between release of iVP and iANF. 5. Haemorrhage decreased iAF before and after vagal nerve section. Section of the vagus nerves increased iANF. Plasma iANF was highly correlated with atrial pressure and mean arterial pressure suggesting iANF release was secondary to changes in cardiac haemodynamics.
Authors:
C A Courneya; N Wilson; J R Ledsome
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Clinical and experimental pharmacology & physiology     Volume:  16     ISSN:  0305-1870     ISO Abbreviation:  Clin. Exp. Pharmacol. Physiol.     Publication Date:  1989 Aug 
Date Detail:
Created Date:  1989-11-17     Completed Date:  1989-11-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0425076     Medline TA:  Clin Exp Pharmacol Physiol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  651-8     Citation Subset:  IM    
Affiliation:
Department of Physiology, University of British Columbia, Vancouver.
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MeSH Terms
Descriptor/Qualifier:
Animals
Aorta, Thoracic / metabolism*
Atrial Natriuretic Factor / blood*
Blood Pressure
Blood Volume
Heart Rate
Hemorrhage / blood*,  physiopathology
Male
Myocardium / metabolism*
Rabbits
Radioimmunoassay
Receptors, Cell Surface / metabolism*
Time Factors
Vasopressins / blood*
Chemical
Reg. No./Substance:
0/Receptors, Cell Surface; 11000-17-2/Vasopressins; 85637-73-6/Atrial Natriuretic Factor

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


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