Figure 8: Motion analysis of the rabbits at 4 weeks postinjection. In G4-MSC + PDRN, walking distance, fast walking time, and mean walking speed are greater than those in the other three groups on motion analysis. one-way ANOVA, Tukey’s post hoc test among groups. Group 1 (normal saline 0.2 mL). Group 2 (PDRN 0.2 mL). Group 3 (MSC 0.2 mL). Group 4 (MSC 0.2 mL with PDRN 0.2 mL). MSC: human umbilical cord blood-derived mesenchymal stem cell; PDRN: polydeoxyribonucleotide.