Fig. 4.

Results from the pathway analysis on the proteins differing between the medial^OA and medial^ref menisci, which was performed in IPA®. Bar plot displaying the most increased or decreased pathways mapped to the proteins. Z-score is a statistical measure of the match between the expected direction of the relationship and the observed protein expression and a higher z-score corresponds to a stronger overrepresentation. The color of the bars represents the number of proteins that could be mapped to that specific pathway.