Fig. 9. Injury decreases resting cytosolic calcium concentration ([Ca²⁺]^c) in capsaicin-insensitive sensory neurons. Control neurons were compared to neurons from the L4 dorsal root ganglion (SNL4) and L5 ganglion (SNL5) after L5 and L6 spinal nerve ligation. There was no significant main effect of injury (analysis of variance) in capsaicin-sensitive neurons. Number of neurons for each group is shown in the  bars . ***  P < 0.001.