Alterations in intracellular calcium compartmentation following inhibition of calcium efflux from isolated hepatocytes.


Addition of ATP to the incubation medium of freshly isolated rat hepatocytes causes a marked inhibition of the efflux of Ca2+ from the cells, and its accumulation in intracellular compartments. After an initial rise in cytosolic free Ca2+ concentration, as indicated by the activation of phosphorylase, Ca2+ is preferentially sequestered in the mitochondria… (More)


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