Endothelial Progenitor Cell Therapy for Fracture Healing: A Dose-Response Study in a Rat Femoral Defect Model

Figure 2

Mean radiographic scores of new bone formation across the different animal groups. Control refers to the animals that received no endothelial progenitor cells (EPCs); 0.1 M, 0.5 M, 1.0 M, 2.0 M, and 4.0 M refer to the animals that received 1 × 10⁵, 5 × 10⁵, 1 × 10⁶, 2 × 10⁶, and 4 × 10⁶ EPCs, respectively. denotes a significant difference between groups surrounded by the box (0.5 M, 1.0 M, 2.0 M, and 4.0 M) and the control group (). ^#denotes a significant difference between groups surrounded by the box (0.5 M, 1.0 M, 2.0 M, and 4.0 M) and the 0.1 M group ().