Figure 2From: Demonstration of a novel technique to quantitatively assess inflammatory mediators and cells in rat knee jointsLevels of (a) TNFα and (b) IL1β from joints immediately after needle insertion (basal), and 7 hours later. Cytokines were assayed using an ELISA, and although there was an apparent increase in TNFα concentrations, to approximately 300 pg ml-1 in two samples, this was not statistically significant (P > 0.05, Mann Whitney). The horizontal lines on the graphs represent the median values in each group.Back to article page