Figure 2From: Differences in synovial fluid cytokine levels but not in synovial tissue cell infiltrate between anti-citrullinated peptide/protein antibody-positive and –negative rheumatoid arthritis patientsDifferential expression of cytokines in SF ACPA positive and negative patients. (A. IL-1β, B. IL-10, C. IL-17 F, D. CCL20). SF concentrations (pg/ml) were determined by Quantibody® Human Th17 Array (RayBiotech, Norcross GA, USA). Wilcoxon’s test was used to compare means in A-D. ACPA, anti-citrullinated peptide/protein antibodies; SF, synovial fluid.Back to article page