Figure 1. Inward-rectifier potassium current (IK1) in human and dog ventricular cardiomyocytes.
A, original IK1 recordings in a human (top traces) and a dog (bottom traces) ventricular myocyte. Voltage protocol shown above traces. B, mean ± SEM IK1 density–voltage relations. C, mean ± SEM IK1 density at −60 mV (left) and −140 mV (right) membrane potentials. *P < 0.05, **P < 0.01 dog versus human. n= number of experiments.