Table 3.

K⁺ and Na⁺ current characteristics of bladder afferent neurons with TTX-resistant spikes from vehicle-treated and NGF-treated rats

	Vehicle	NGF (2 weeks)
K+ currents
No. of cells	15	20
Input capacitance (pF)	30.8 ± 1.7	42.5 ± 2.7**
KA conductance (at 0 mV)
Max (nS)	33.6 ± 4.4	21.9 ± 2.8*
Normalized (nS/pF)	1.09 ± 0.16	0.52 ± 0.07**
KDR conductance (at 20 mV)
Max (nS)	39.9 ± 3.8	49.9 ± 3.3
Normalized (nS/pF)	1.33 ± 0.13	1.19 ± 0.09
Na+ currents
No. of cells	15	20
Input capacitance (pF)	30.1 ± 1.6	43.1 ± 2.6**
TTX-R Na+ conductance (at 10 mV)
Max (nS)	69.5 ± 3.6	97.4 ± 3.9*
Normalized (nS/pF)	2.31 ± 0.12	2.26 ± 0.11
TTX-S Na+ conductance (at 10 mV)
Max (nS)	42.3 ± 4.1	53.1 ± 3.5
Normalized (nS/pF)	1.41 ± 0.13	1.23 ± 0.10

Max, Maximal conductance. Normalized, Conductance normalized with respect to cell input capacitance.

*p < 0.05,

**p < 0.01 compared with the value in bladder afferent neurons with TTX-resistant spikes from vehicle-treated rats.