Figure 1From: Interleukin-6 is elevated in synovial fluid of patients with focal cartilage defects and stimulates cartilage matrix production in an in vitro regeneration modelIncreased concentration of IL-6 in the synovial fluid of patients with cartilage damage. Concentration of IL-6 in the synovial fluid of healthy (H), symptomatic cartilage defect (CD) and osteoarthritic (OA) donors. Note the logarithmic scale of the Y-axis; a = P < 0.001, b = P = 0.001.Back to article page