Ca2(+)-dependent inhibition of sodium transport in rabbit cortical collecting tubules.

Abstract

Experiments were carried out to test whether maneuvers believed to increase intracellular Ca2+ concentration [( Ca2+]cell) inhibit Na transport in cortical collecting tubules (CCTs). Unidirectional Na efflux (JNa1----b) and Na influx (JNab----1) were measured isotopically in isolated perfused renal CCTs of rabbits. The animals were either untreated or… (More)

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