Abstract
The Ca ionophores markedly enhance the increase of intracellular Ca occurring during Na-free perfusion and the hyperpolarization observed upon Na readmission may be due to rapid restoration of intracellular Na and resultant stimulation of both electrogenic sodium and calcium efflux.
MeSH terms
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Action Potentials / drug effects*
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Animals
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Anti-Bacterial Agents / pharmacology*
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Calcium / metabolism
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Dogs
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Heart Conduction System / drug effects*
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Lasalocid / pharmacology*
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Purkinje Fibers / drug effects*
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Purkinje Fibers / metabolism
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Sodium / metabolism
Substances
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Anti-Bacterial Agents
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Sodium
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Calcium
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Lasalocid