Figure 4. Effects of treatment with PLD on biomechanical parameters of mouse femurs. (A) Ultimate force, (B) stiffness, and (C) energy to fracture of the femurs among the four groups of mice. Data are expressed as mean ± S.D.; n=4 to 5 per group; *P < 0.05, vs. the Sham group; #P < 0.05, vs. the SCI group.