Document Detail


Reversal of myocardial dysfunction in endotoxin shock with insulin.
MedLine Citation:
PMID:  346182     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Recent data reported from this laboratory have documented myocardial functional depression in endotoxin shock. The purpose of the present study was to determine the effects of insulin on the dysfunctioning canine myocardium subjected to lethal endotoxin shock. Experiments were conducted on isolated working left ventricular preparations in which LD90-100 endotoxin was administered prior to, or following, isolation of the heart. Determinations of myocardial performance were conducted under the conditions of controlled mean aortic pressure and cardiac output. Myocardial dysfunction occurred between 2 and 6 h postendotoxin, as evidenced by significantly increased left ventricular end-diastolic pressure, decreased power, and depressed negative dP/dt, although blood glucose concentrations were maintained at control values. Intraatrial infusions of insulin at rates of 6 U/min reversed all signs of myocardial dysfunction. During insulin infusion, heart rates decreased (p less than 0.02) and myocardial lactate uptake increased (p less than 0.02), while oxygen uptake and coronary blood flow were insignificantly altered.
Authors:
L T Archer; B K Beller; J K Drake; T L Whitsett; L B Hinshaw
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Canadian journal of physiology and pharmacology     Volume:  56     ISSN:  0008-4212     ISO Abbreviation:  Can. J. Physiol. Pharmacol.     Publication Date:  1978 Feb 
Date Detail:
Created Date:  1978-06-12     Completed Date:  1978-06-12     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  0372712     Medline TA:  Can J Physiol Pharmacol     Country:  CANADA    
Other Details:
Languages:  eng     Pagination:  132-8     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Dogs
Endotoxins / pharmacology
Escherichia coli
Hemodynamics / drug effects*
Insulin / pharmacology*
Shock, Septic / physiopathology*
Chemical
Reg. No./Substance:
0/Endotoxins; 11061-68-0/Insulin

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


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