Document Detail


Plasma catecholamines and hemodynamic responses to stress states in man.
MedLine Citation:
PMID:  6589949     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The relationship between the plasma catecholamine and hemodynamic responses to stress in man was studied using radionuclide left ventricular angiography to assess changes in cardiac volumes. In 10 healthy men, the maximum plasma norepinephrine (NE) and epinephrine (EPI) responses to symptom-limited supine bicycle exercise were considerably greater than the responses to isometric handgrip exercise or to a cold pressor test. Similarly, increases in heart rate, systolic blood pressure, stroke volume, ejection fraction, and cardiac output were greatest with bicycle exercise. Both the plasma catecholamine and hemodynamic responses to handgrip exercise tended to be intermediate, and the smallest responses were observed during cold pressure testing. The plasma NE and EPI responses to symptom-limited upright treadmill exercise in another group of 10 men were greater than the responses to supine bicycle exercise. During bicycle exercise and during handgrip exercise there were significant correlations between plasma NE and EPI levels and changes of heart rate, blood pressure, and cardiac output. In addition, when data from all three stresses were combined and effects of heart rate and subject differences were controlled for, plasma NE and EPI levels were significantly correlated with ejection fraction. These findings suggest that release of EPI and NE during stress states may contribute to some of the hemodynamic responses that occur during stress.
Authors:
J B Halter; J R Stratton; M A Pfeifer
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Acta physiologica Scandinavica. Supplementum     Volume:  527     ISSN:  0302-2994     ISO Abbreviation:  Acta Physiol Scand Suppl     Publication Date:  1984  
Date Detail:
Created Date:  1984-09-13     Completed Date:  1984-09-13     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0376307     Medline TA:  Acta Physiol Scand Suppl     Country:  SWEDEN    
Other Details:
Languages:  eng     Pagination:  31-8     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Catecholamines / blood*
Cold Temperature
Coronary Disease / physiopathology
Epinephrine / blood
Hemodynamics*
Humans
Isometric Contraction
Male
Middle Aged
Norepinephrine / blood
Physical Exertion
Stress, Physiological / blood,  physiopathology*
Grant Support
ID/Acronym/Agency:
AG 01926/AG/NIA NIH HHS
Chemical
Reg. No./Substance:
0/Catecholamines; 51-41-2/Norepinephrine; 51-43-4/Epinephrine

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


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