Figure 3

Synovial expression of TRAF6 in RA, OA and Orth.A. Scatterplots showing synovial TRAF6 expression scores in RA, OA and Orth.A patients as measured by immunohistochemistry. Synovial expression of TRAF6 was scored semiquantitatively on a five-point scale [29]. Each circle represents the determination for an individual with open circles indicating RA patients (n = 44), filled circles indicating OA patients (n = 9), and open diamonds indicating Orth.A patients (n = 7). Horizontal lines show the median for each population examined. The P-values were calculated using the Kruskal-Wallis one way analysis. (OA, osteoarthritis; Orth.A, orthopedic arthropathies; RA, rheumatoid arthritis; TRAF6, Tumor necrosis factor receptor-associated factor 6).