in contrast , the na+ ionophore gramicidin d ( 0.1 to 10 microgram/ml ) caused cell depolarization and increased 22na+ ionophore gramicidin d ( 0.1 to 10 microgram/ml ) caused cell depolarization and increased 22na+ uptake but did not stimulate 45ca2+ uptake , the camp response , o2- generation , or exocytosis of granule constituents .
C0007634
cell
C0015283
exocytosis