Fig. 3From: Botulinum toxin type A promotes microglial M2 polarization and suppresses chronic constriction injury-induced neuropathic pain through the P2X7 receptorEffect of BTX-A on M1 and M2 microglia in NP rats. The proportions of both M1 and M2 microglia in L4–L6 spinal cord segments were examined by flow cytometry. **P < 0.01, vs. Sham; #P < 0.05, ##P < 0.01, vs. NPBack to article page