Serum levels of cytokines and BAFF in IgG4-related disease (RD), primary Sjögren’s syndrome (pSS), and healthy controls (HC). Serum cytokines of IL-4 (A), IL-6 (B), IL-5 (C), IL-13 (D), IL-10 (E), IFN-γ (F), IL-17A (H), TGF-β (I) and BAFF (G) levels from serum samples of IgG4-RD (n = 28), pSS patients (n = 28), and HC (n = 24) were tested by ELISA. Values are shown as mean ± standard error of the mean, *P <0.05; **P <0.01; ***P <0.001.
Lin et al. Arthritis Research & Therapy 2014 16:R118 doi:10.1186/ar4571