Figure 4. The effect of MMW chitosan combined with OPG (low (0.024 µg mL ⁻¹), moderate (0.15 µg mL⁻¹) or high (1.5 µg mL⁻¹) dose) on NHPL fibroblasts proliferation in-vitro.

NHPL fibroblast cells were treated for 24, 48 and 72 h.