Document Detail


Tachycardia during reversal of one-kidney, one-clip hypertension in conscious rats.
MedLine Citation:
PMID:  2006999     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The efferent sympathetic activity of the heart was investigated during reversal of one-kidney, one-clip (1K,1C) hypertension in conscious, freely moving rats using changes in heart rate as an index. One-kidney, one-clip hypertensive rats presented marked tachycardia during the first 8 h after unclipping. Mean arterial pressure fell 28% 3 h after unclipping and 37% 8 h after unclipping. In a separate experiment, short term infusion (15 min) of sodium nitroprusside in conscious freely moving rats produced similar tachycardia in hypertensive and sham-operated rats. The present results indicate that the baroreceptor reflex of the heart was operating normally during the prompt reversal of hypertension after unclipping.
Authors:
B H Machado; H C Salgado
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American journal of hypertension     Volume:  4     ISSN:  0895-7061     ISO Abbreviation:  Am. J. Hypertens.     Publication Date:  1991 Jan 
Date Detail:
Created Date:  1991-04-30     Completed Date:  1991-04-30     Revised Date:  2009-02-24    
Medline Journal Info:
Nlm Unique ID:  8803676     Medline TA:  Am J Hypertens     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  60-3     Citation Subset:  IM    
Affiliation:
Department of Physiology, School of Medicine of Ribeirão Preto, USP, São Paulo, Brazil.
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MeSH Terms
Descriptor/Qualifier:
Animals
Blood Pressure
Heart Rate
Hypertension, Renal / physiopathology*
Male
Nephrectomy
Pressoreceptors / physiology
Rats
Rats, Inbred Strains
Reflex / physiology
Tachycardia / physiopathology*

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


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