Why the study?
Does ouabain have different short and long-term effects on sodium pumps in cultured human cells?
Population
Human cells (HeLa) grown in culture
Comparison
Ouabain at various concentrations in growth… vs Growth medium in the absence of cardiac glycosides
Design
Preclinical
Follow-up
up to 48 hours
Authors
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Long-term ouabain exposure may block sodium pumps more potently than short-term kinetics predict; leaves open relevance to clinical dosing.
Does ouabain have different short and long-term effects on sodium pumps in cultured human cells?
Ouabain exhibits a 4-fold greater long-term blocking effect on sodium pumps than predicted by short-term kinetics, suggesting limited access to sodium pumps in whole cells.
Griffiths et al. (1991) studied this question.
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