Yonsei Med J.  1969 Dec;10(2):170-172. 10.3349/ymj.1969.10.2.170.

Cardiac Catecholamines in Rabbits: Seasonal Changes and Norepinephrine Effect

Affiliations
  • 1Department of Pharmacology, Yonsei University College of Medicine, Seoul, Korea.

Abstract

In an attempt to determine whether myocardial catecholamines vary from season to season, their concentration in rabbits was measured throughout the whole year by the spectrophotofluorometric method. The highest concentration of cardiac catecholamine was observed in summer. Measurement of the atrial response to norepinephrine revealed no significant alteration during the entire period of the experiment.


MeSH Terms

Animals
Catecholamines/*analysis
Heart/*drug effects
Myocardium/*analysis
Norepinephrine/*pharmacology
Rabbits
*Seasons
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