Expression of pro-resolving proteins in healthy and diseased supraspinatus tendons. Quantitative analyses show increased expression of FPR2/ALX (A) and ChemR23 (B) in early stage disease tendons compared to intermediate-advanced stage disease tendons or healthy tendons. Bar represents median. Statistically significant differences were calculated using Kruskal-Wallis with pairwise post-hoc Mann Whitney U tests. *p<0.05, **p<0.01, ***p<0.001. Representative confocal immunofluorescence images showing staining for macrophages (CD206+, CD68+, MerTK+) and the pro-resolving proteins ChemR23 (red, C) and FPR2/ALX (purple, D) in sections of early stage tendon disease. Cyan represents nuclear counterstain. Scale bar = 20µm.