Expression of pain-related targets in the dorsal root ganglia (DRG) following groups of mice including naïve, PMM and SR9009 treated mice. Double immunofluorescence staining of TrkA (red; 7A-7C), NGF (red; 7D-7F), Nav1.7 (red; 7G-7I), Nav1.8 (red; 7J-7L) and TRPV1 (red; 7M-7O) and NeuN (green) in DRGs of Naïve, PMM and SR9009 treated groups mice. Co-localization of the two stains appears yellow. A scale bar was 20μm and is shown in white in color for all images. Quantitative analyses of TrkA, NGF, Nav1.7, Nav1.8 and TRPV1expression in DRGs (Fig. 7P-7T) showed that they were increased in OA mice, but that was reduced with i.a. SR9009. Values are mean±SEM.