Fig. 7.

Skeletal muscle regeneration in vivo after treated with FPCP hydrogel for 1 week (blue: sham operation). (A) Images of skeletal muscle defect; (B) H&E staining pictures of skeletal muscle defect area, the black arrows indicate the centronucleated myofibers; (C) CD 31 stained (red: CD 31, blue: nuclei) images; (D) quantitative analysis of CD 31, (E) Diameter of myofibers, and (F) numbers of regenerated myofibers (centronucleated myofibers) around the defect area in all groups. Three randomly selected fields of each section and three sections per specimen were analyzed by Image J software (*p < 0.05 and **p < 0.01).