Fig. 2From: Elucidating the endogenous synovial fluid proteome and peptidome of inflammatory arthritis using label-free mass spectrometryVolcano plot of significantly differentially abundant proteins identified in the IA SF proteome relative to control SF. A total of 144 proteins, highlighted in blue and found above the y-intercept of − log10(0.05), were determined to have statistically significant differential abundance in IA SFBack to article page