Effects of adrenergic drugs on the coronary circulation of Atlantic salmon ( Salmo salar )

Spontaneously beating hearts from Atlantic salmon (Salmo salar) were used to examine the adrenergic regulation of the perfused coronary circulation. Excitatory α-adrenoceptors (vasoconstriction) dominated over inhibitory β-adrenoceptors (vasodilatation). Increased heart rate via β-adrenergic stimula...

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Bibliographic Details
Published in:Canadian Journal of Zoology
Main Authors: Farrell, A. P., Graham, M. S.
Format: Article in Journal/Newspaper
Language:English
Published: Canadian Science Publishing 1986
Subjects:
Animal Science and Zoology
Ecology, Evolution, Behavior and Systematics
Atlantic salmon
Salmo salar
Online Access:http://dx.doi.org/10.1139/z86-071
http://www.nrcresearchpress.com/doi/pdf/10.1139/z86-071
Description
Summary:Spontaneously beating hearts from Atlantic salmon (Salmo salar) were used to examine the adrenergic regulation of the perfused coronary circulation. Excitatory α-adrenoceptors (vasoconstriction) dominated over inhibitory β-adrenoceptors (vasodilatation). Increased heart rate via β-adrenergic stimulation was possible with drug injections into the coronary artery. The heart rate effects followed the vasoactive effect by approximately 2 min.

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