Figure 6. The effects of tetraethylammonium (TEA) and 4-aminopyridine (4-AP) on chloride currents.
a — Response of the cell on the series of rectangular electric pulses (track 1) in control (track 2), during action of 1 mM of TEA (track 3), and after washout (track 4). During the TEA action outside cation current and outside chloride current were blocked to 17 and 20% respectively, at +20 mV on the membrane.
b — In the same (see Fig 4,a) conditions, the other cell, show the control response (track 2), during action of 100 uM of 4-AP (track 3), and response after washout of 4-AP. The blockadge of outside and chloride currants were 47% and 44%, respectively, at the potential +20 mV on cell membrane.