Effects of neurokinin receptor (NK1) antagonists on basal Ca2+ transients. A, Representative ST maps showing the inhibitory effects of the NK1 receptor antagonist, RP 67580 (1 μM), on Ca2+ transients in ICC-DMP. B–E, Summary graphs showing the effects of RP 67580 on the frequency (B), amplitude (C), duration (D), and spatial spread (E) of Ca2+ transients in ICC-DMP (n = 11, c = 27). F, Representative ST maps showing the inhibitory effects of the NK1 receptor antagonist, SR 140333 (1 μM), on Ca2+ transients in ICC-DMP. G–J, Summary graphs showing the effects of 1 μM SR 140333 on the frequency (G), amplitude (H), duration (I), and spatial spread (J) of Ca2+ transients in ICC-DMP (n = 4, c = 14); ns = p > 0.05, *p < 0.05, **p < 0.01, ***p < 0.001.