Figure 2

Expression of p-ERK1/2 in the L ₄ -L ₆ spinal cord dorsal horn at control, model and TENS groups after NS/CFA injection. A) Statistical summary of the densitometric analysis of p-ERK1/2 expressed relative to the value of rats in control group. B) Statistical summary of the densitometric analysis of p-ERK1/2 expressed in rats of model group and TENS group at 5 h, 6 h and 25 h after CFA injection. C) Representative Western bolts show the level of p-ERK1/2 in rats model group and TENS group at 5 h and 6 h after CFA injection. Values represent mean ± SEM; n = 4-6 for model and TENS group at each time point; n = 4-6 for control group. **P < 0.01 versus control group at each time point. ^▲▲ P < 0.01 versus model group at the corresponding time point.