Figure 8. The effect of Huangqi Guizhi Wuwu Decoction on the expression of ERK1/2, p38, JNK, c-Fos, CREB and NF-kB in the L4-L5 dorsal root ganglions of different rat groups detected by IHC. (A–F) The typical pictures of ERK1/2, p38, JNK, c-Fos, CREB and NF-kB expression in the L4-L5 dorsal root ganglions of different rat groups detected by IHC. (G) The average optical density of ERK1/2, p38, JNK, c-Fos, CREB, and NF-kB expression in the L4-L5 dorsal root ganglions of different rat groups.