A, effect of GdCl3 on CPA-induced calcium influx. Left, representative examples; right, summary of the effect of GdCl3 (n = 15 neurons). B, effect of YM-58483 on CPA-induced calcium influx. Left, representative examples; right, summary of the effect of YM-58483 (n = 18 neurons). C, effect of 2-APB on CPA-induced calcium influx. Left, representative examples; right, summary of the effect of 2-APB (n = 11 neurons). Values represent mean ± SEM; *P < 0.05, compared with control by one-way ANOVA.