α,β-meATP induced a larger depolarization in CCD neurons. (A) Representative tracings of a depolarization evoked by α,β-meATP in sham-operated DRG and CCD DRG neurons. Note that α,β-meATP triggered spike discharges in the CCD neuron. (B) The mean depolarization amplitude induced by α,β-meATP in CCD neurons was significantly increased (**p < 0.01, unpaired t-test). The whole-cell current-clamp recordings were obtained from 17 sham-operated DRG neurons and 17 CCD neurons.