Thermal hyperalgesia in the hind paws and mechanical allodynia in the hind paws, the upper back and thigh of rats induced by UAC. A: Hindpaw thermal withdrawal latency in UAC and sham-treated rats (n = 11 per group). B: Hindpaw mechanical withdrawal threshold (n = 11). C: Upper back mechanical withdrawal threshold (n = 10). D: Thigh mechanical withdrawal threshold (n = 10). No mechanical allodynia was observed in rats with sham treatment. *, **, *** p < 0.05, 0.01, 0.001 vs. baseline, respectively. #, ##, ### p < 0.05, 0.01, 0.0001 vs. the sham group at the same time point.