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Figure 2: (a) Typical examples of outward K+ currents evoked by a 400-ms depolarizing pulse to +160 mV from a holding potential of −40 mV in control, in the presence of 3 mM caffeine and 0.1 mM iberiotoxin (IBX). (b) Current–voltage relationship recorded from cells represents mean currents in control, caffeine (n = 5) and IBX (n = 3) *represents P < 0.05

Figure 2: (a) Typical examples of outward K<sup>+</sup> currents evoked by a 400-ms depolarizing pulse to +160 mV from a holding potential of −40 mV in control, in the presence of 3 mM caffeine and 0.1 mM iberiotoxin (IBX). (b) Current–voltage relationship recorded from cells represents mean currents in control, caffeine (<i>n</i> = 5) and IBX (<i>n</i> = 3) *represents <i>P</i> < 0.05