Fig. 7.
Effect of I− substitution for Cl− on dipyridamole inhibition of Ca++-activated K fluxes.
AA RBCs were washed with HBS or similar medium in which I−replaced Cl− and suspended at 2% hematocrit. Ca++-activated K+ efflux was measured as described in “Materials and methods” with or without 10 μM dipyridamole. Fluxes are normalized to the flux in Cl−media for each of 3 independent experiments, showing the mean and SD for each condition.