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. 2023 Mar 3;16:1091096. doi: 10.3389/fnmol.2023.1091096

Figure 1.

Figure 1

Neuropathic pain developed in SCI mice. (A) The SCI mouse model was generated by punching a hole in left L5 segment of spinal cord under vertebra thoracic segment 13 (T13) using a 26G needle. Injury site is marked with a red circle. (B) Hematoxylin and Eosin (H&E) staining of spinal cord sections showed that the injury track only presented in SCI mice, not in naive nor sham mice. (C) The paw-withdrawal threshold of the ipsilateral side of sham mice pre-surgery and three, five, and eight days post operation (DPO), n = 6. (D) The paw-withdrawal threshold of the ipsilateral side of SCI mice significantly dropped at 3 DPO and further decreased by 8 DPO. Baseline 1.3 ± 0.30 g; Day 3, 0.8 ± 0.35 g; Day 5, 0.7 ± 0.28 g; Day 8, 0.3 ± 0.12 g, n = 7. * p < 0.05, ** p < 0.01, **** p < 0.0001, unpaired t-test or one-way ANOVA. n.s. not significant. Scale bar = 100 μm.