Cytokine profile in serum and synovial fluid of patients with established rheumatoid arthritis

To identify the cytokines that are present at higher levels in the serum and synovial fluid (SF) of patients with established rheumatoid arthritis (RA). Interleukin (IL)1β, IL2, IL4, IL6, IL8, IL10, IL12 (p70), IL17A, IL18, IL22, IL23, interferon (IFN)γ, leptin, MCP-1, MIP-1α, OPG, transforming growth factor β (TGFβ) and …