CCL11 and rheumatoid arthritis: The levels of CCL11 in SFs from patients with RA (n = 15) were higher than those in SFs from patients with OA (n = 16) (mean ± SEM: 17.2 ± 3.0 pg/mL and 7.7 ± 2.6 pg/mL, respectively, p < 0.05, Fig. 1B).