Fig. 9
Measurement of TNF-α level in the DRG (a) and sciatic nerve (b). Protein levels were determined by ELISA. Data are shown as the mean ± SEM (N = 5 per group). *p < 0.001 NP vs. ctrl (a and b); **p < 0.001 NP + CE vs. NP (a and b); #p < 0.001 (a) and p < 0.01, (b) NP + CE + picro vs. NP + CE (a and b)