Calcium requirements for secretion in bovine chromaffin cells

1. Measurements of membrane capacitance and intracellular Ca2+ concentration, [Ca2+]i, were used to examine the Ca2+ dependence of secretion in single adrenal chromaffin cells. 2. Intracellular dialysis of Ca2+, through a patch pipette, promoted secretion; the rate of secretion increased monotonical...

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