Figure 4From: Identification of a cytokine network sustaining neutrophil and Th17 activation in untreated early rheumatoid arthritisCytokines related to T helper 17 (Th17) polarization are increased in the synovial fluid (SF) of established rheumatoid arthritis (RA). The concentrations of interleukin (IL)-1β and IL-6 were markedly increased in the SF collected from patients with established RA when compared with osteoarthritis (OA). Dotted lines represent the limit of detection for the assays. Differences were considered statistically significant for P values of less than 0.05 according to the Mann-Whitney test.Back to article page