Effect of ouabain on the resting tension and the rate of net entry of calcium-45 in isolated perfused rabbit ventricles.
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Biomedical subjects
Publications and source records attributed to W C HOLLAND.
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Absolute influx and efflux of potassium-42 have been measured in isolated rabbit atria during acetylcholine-induced fibrillation. The efflux of potassium was increased three to four times; influx was not changed. The data are interpreted as indicating that an inhibition of active K uptake is not involved in the initiation of fibrillation, and that the process results from a marked increase in Na permeability.