Figure 3. Effects of IL-10 (A) and glucose (B) at different concentrations on the protein expression of osteoprotegerin (OPG) and receptor activator of nuclear factor-κB ligand (RANKL) in human periodontal ligament fibroblasts. Panel A, lanes 1-6: cells treated with interleukin-10 (IL-10) at 0, 1, 10, 25, 50, and 100 ng/mL, respectively. Panel B, lanes 1-6: cells treated with glucose at 0, 5.5, 10, 20, 30, and 40 mmol/L, respectively. GAPDH: anti-glyceraldehyde-3-phosphate dehydrogenase.