Effects of potassium on isolated canine coronary arteries. Modulation of adrenergic responsiveness and release of norepinephrine.

J Borda, L; Shuchleib, R; J. Henry, Peter

doi:10.1161/01.res.41.6.778

Public

Effects of potassium on isolated canine coronary arteries. Modulation of adrenergic responsiveness and release of norepinephrine.

Published in Circulation Research • Dec 1, 1977

Authors:

L J Borda

R Shuchleib

Peter J. Henry

Abstract

We studied effects of changes in the extracellular potassium concentration (|K* ]") on the mechanical responsiveness of canine coronary artery preparations. Four different contractile behaviors were delineated between | K *),, = 0 and 40 HIM: (1) at [K + ] o 30 mM, effects of /3-adrenergic stimulati...

Subject

Coronary arteries

Norepinephrine

Adrenergic

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