Article: The differential expression of low-threshold K+ currents generates distinct firing patterns in different subtypes of adult mouse trigeminal ganglion neurones.
Table 1. AP parameters assessed on the three TG neuronal populations
Parameter
MF neurones Value ± s.e.m. (n)
DMF neurones Value ± s.e.m. (n)
SS neurones Value ± s.e.m. (n)
P (MF versus DMF)
P (MF versus SS)
P (DMF versus SS)
The parameters considered are: Cm, membrane capacitance Vr, resting membrane potential; APampl, AP amplitude; APrt, AP repolarizing time; AHPampl, amplitude of the after-hyperpolarization; AHPdur, duration of the after-hyperpolarization at half amplitude; rd, maximal rate of depolarization; rr1, first maximal rate of repolarization; rr2, second maximal rate of repolarization; tr, time between the two maximal rate of repolarization; rheoS, minimum injected current (of 1 ms duration) that triggers an AP; rheoL, minimum injected current (of 500 ms duration) that triggers an AP; Ri, input resistance, assessed in voltage-clamp mode by applying repolarizing pulses from −60 to −80 mV. The last three columns
report the significance level assessed by a t test performed on MF versus DMF, MF versus SS, and DMF versus SS neurones. P values lower than 0.05 are in bold.