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Effects of NGF treatment detected via behavioral tests. (A) Effect of NGF pretreatment on tail-flick latencies in rats from the Sham, Lido and NGF groups at 1–3 days following operation; n=4. *P<0.05 vs. Lido group, #P<0.05 vs. Sham group. (B) Standard neurological disability was scored three days following lidocaine administration. *P<0.05. Lido, rats receiving intrathecal injection of lidocaine; NGF, NGF, nerve growth factor; MPE, maximal possible effect.
