Fig. 4From: Involvement of hippocampal acetylcholinergic receptors in electroacupuncture analgesia in neuropathic pain ratsEffect of intra-hippocampal injection of M1mAChR selective antagonist (pirenzepine hydrochloride) and α4β2 nAChR antagonist (Dihydro-beta-erythroidine, DHβE) on pain threshold (a mechanic, g; b thermal, sec) in neuropathic pain rats (mean ± SD, n = 4 in each group); *P < 0.05, vs the normal group; #P < 0.05, vs the model groupBack to article page