Fig. 1. Intracellular Cl^- fluxes control Ca²⁺-elicited exocytosis. (A) Increases in cell capacitance (C) evoked by infusion of the Ca²⁺- and ATP-containing control solution (ctrl, n=34) and in presence of niflumic acid (nifl, n=12) or DIDS (n=7). (B) Average rates of capacitance increase (C/t) ± s.e.m. (C) C evoked as in (A) at 165 mM (n=10), 40 mM (n=8), and 2 mM (n=9) intracellular [Cl^-] as indicated. (D) Average C/t ± s.e.m. Statistical significance was evaluated using Student’s t-test. *P<0.05; ***P<0.001.

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