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. 2006 Oct 18;26(42):10847–10855. doi: 10.1523/JNEUROSCI.3023-06.2006

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Copyright © 2006 Society for Neuroscience 0270-6474/06/2610847-09$15.00/0

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Figure 8. — Steady-state activation and inactivation characteristics of TTX-resistant Na⁺ currents in bladder afferent neurons with TTX-resistant spikes from vehicle-treated and NGF-treated rats (2 weeks). A, Inactivation characteristics of TTX-resistant Na⁺ currents in vehicle-treated animals (n = 15) (▴) and NGF-treated animals (n = 20) (▵). Peak amplitude of TTX-resistant Na⁺ currents normalized to the maximal amplitude of TTX-resistant Na⁺ currents (I/I_max) were plotted against membrane potentials. V_h and k obtained by fitting curves using the modified Boltzmann equation were −33.3 mV and −6.0 for vehicle-treated rats and −34.1 mV and −6.2 for NGF-treated rats. B, Activation characteristics of TTX-resistant Na⁺ currents obtained in the neurons from vehicle-treated animals (n = 15) (■) and NGF-treated animals (n = 20) (□). Na⁺ conductances normalized to the maximal Na⁺ conductance (G/G_max) were plotted against membrane potentials. V_h and k obtained by fitting curves using the modified Boltzmann equation were −11.9 mV and 8.2 for vehicle-treated rats and −10.1 mV and 8.7 for NGF-treated rats. Error bars indicate SE.