The proportion and electrophysiological characteristics of Cav3 currents in SG neurons of PSNL rats. (a) The proportion of neurons with or without IT in sham (41/69, 59.4%) and PSNL rats (46/60, 76.7%). (b) Peak amplitudes of IT (Vhold = −110 mV) from sham (n = 41) and PSNL (n = 46) rats. (c) Current density (peak current amplitude divided by cell’s capacitance) against test potential of IT from sham (n = 41) and PSNL (n = 46) rats. (d) and (e) Representative activation and inactivation traces of IT in SG neurons from sham and PSNL rats. Activation currents (d) were evoked by the voltage steps from −110 mV (Vhold) to test potentials from −70 mV through −40 mV in a 5-mV step. Inactivation currents (e) were evoked by test steps to −50 mV after a 0.5-s prepulse at potentials from −60 mV to −110 mV in a 5-mV step. (f) Steady-state activation and inactivation of IT in the sham and PSNL rats. (g) Bar graphs of half-activation or half-inactivation potentials of IT (activation: sham, n = 11, PSNL, n = 16; inactivation: sham, n = 14, PSNL, n = 22). *p < 0.05, compared with sham control. PSNL: partial sciatic nerve ligation.