Fig. 1

IL-1β imunoexpression. a Representative sections of IL-1β immunohistochemistry. Immunolabeled chondrocytes (arrow). OA control group (CG); OA animals submitted to PBM treatment (PBM); OA control group (CG); OA animals submitted to PBM treatment (PBM); OA animals submitted to CS/Gl treatment (CS/Gl); OA submitted to CS/Gl associated with PBM treatments (GS/Gl + PBM). (Scale Bar: 50 μm). b Results of semi-quantitative analysis of the IL-1β expression (indicated as *P < 0.05 versus CG). Results expressed as mean ± standard error of the mean