Fig. 5

Electrophysiological properties of microglia during formalin induced phase-II persistent inflammatory pain. a Representative traces showing whole cell recording of microglial currents in response to ramp from − 100 mV ~ + 80 mV (left) or depolarization steps from − 100 mV to 80 mV (right) in control and formalin-treated groups. b Quantified summaries of microglial current in response to depolarization steps from − 100 mV to 80 mV from control and formalin-treated mice. Holding potential: − 60 mV. n = 5 cells/group. Data are shown as mean ± SEM. *P < 0.05; **P < 0.01, compared to control