Figure 4. Profiles of 5-HT-positive nerve fibers after complete T8 resection and glial scar removal.
(A) At 1 year post-injury, 5-HT positive nerve fibers were only detected in the lesion site of canines in NeuroRegen scaffold with MSCs group. (B) Enlarged images of 5-HT-positive nerve fibers of the yellow box in the control, NeuroRegen scaffold, and NeuroRegen scaffold with MSCs groups in (A). (C) Quantification of 5-HT-positive nerve fibers in the lesion center of canines in each group. Scale bars indicate 1 mm in (A) and 50 μm in (B). Error bars indicate the standard deviation of 3 different experiments. **Indicates p < 0.01.