Fig. 8

Immunohistochemical staining of inflammatory factors IL-1β and TNF-α in the repaired tendons. A–C Immunohistochemistry with IL-1β antibody. D–F Immunohistochemistry with TNF-α antibody. The upper right panels indicate the images of lower magnifications. G The percentage of IL-1β positive area. H The percentage of TNF-α positive area. R group, random silk scaffold alone. A group, aligned silk scaffold alone. AC group, hPDLSCs seeded aligned silk scaffold. *p < 0.05