C3, C7, and C14 groups:the chronic sciatic nerve constriction (CCI) model was established, the mechanical pain threshold was measured and the samples were obtained on the 3rd, 7th, 14th postoperative day, respectively.

• C3、C7、C14组分别为慢性坐骨神经紧缩性神经病理性疼痛(CCI)模型术后3、7、14d测痛阈取标本。