(a)
(b)
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Figure 1: Simulated effects of 30 μM E3G in the human atrial model (MGTG (Maleckar-Greenstein-Trayanova-Giles)). (a) Steady state inactivation curves (h) in the presence or absence of E3G. (b) and (c) Inhibitory effect of E3G on the sodium current at −90 mV and −70 mV resting potentials. (d) Inhibitory effect of E3G on the calcium current (20% inhibition). (e) Inhibitory effect of E3G on the current (50% inhibition). (f) E3G effect on the atrial action potential (intensity of stimulus = 15 μA/μF, duration: 6 ms; inset, zoom of the rapid depolarization phase). For all panels, black lines: without E3G; red lines: 30 μM E3G.