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J Fish Biol. 2012 Apr;80(4):876-85. doi: 10.1111/j.1095-8649.2011.03187.x. Epub 2012 Feb 23.

The effect of adrenaline on the temperature dependency of cardiac action potentials in pink salmon Oncorhynchus gorbuscha.

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1
University of British Columbia, 2357 Main Mall, Vancouver, BC, V6T 1Z4 Canada. sebastien.ballesta@isc.cnrs.fr

Abstract

Using sharp electrode impalement, action potentials recorded from atrial and ventricular tissue of pink salmon Oncorhynchus gorbuscha generally decreased in duration with increasing test temperature (6, 10, 16 and 20° C). Stimulation of the tissue using 500 nM adrenaline had no significant effect on the duration of the atrial action potential at any test temperature but lengthened the ventricular action potential by ~17%.

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