Figure 1From: Urokinase, a constitutive component of the inflamed synovial fluid, induces arthritisAccumulation of urokinase plasminogen activator (uPA) in the synovial fluid of patients with rheumatoid arthritis (RA). The level of uPA is presented as the mean ± SEM (ng/ml). Significance regarding differences between the groups is indicated.Back to article page