Population
Quiescent cat papillary muscles in vitro
Comparison
Presence and absence of NaCl over a wide range… vs Presence vs. absence of NaCl
Design
Preclinical
Authors
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May inform models of steady-state cardiac K+ handling; leaves open relevance to intact human myocardium under dynamic conditions.
The findings suggest a passive distribution for potassium in heart muscle cells and that carrier-mediated forced exchange of K for Na does not occur during the steady state in mammalian heart muscle.
Ernest W. Page (1965) studied this question.
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