Table 2.

Effects of 1 μm nifedipine on the parameters of driven action potentials and contractions in mouse renal pelvis

Parameters	Control	1 μm Nifedipine
Driven action potentials (N = 5)
Amplitude (mV)	35.2 ± 4.3	26.8 ± 9.8*
Half-amplitude duration (ms)	360 ± 70	201 ± 39*
Frequency (min−1)	12.0 ± 3.9	14.6 ± 6.3
Contractions (N = 4)
Amplitude (mN)	0.15 ± 0.01	0.05 ± 0.02*
Half-amplitude duration (ms)	464 ± 24	131 ± 40*
Frequency (min−1)	6.9 ± 1.7	6.05 ± 0.67

^*P < 0.05.