Figure 5. Expression level of COX-2 performed by immunoblotting.

The protein level of COX-2, as a good marker of inflammation, was quantified in the tibialis anterior muscle of rats at 2 days post-bupivacaine injection. All values were corrected for GAPDH as a protein loading control (mean ± SEM, n = 3/group). Groups bearing different letters for a given time point are significantly different (p≤0.05). C, casein; CP, cod protein; C⁺, casein supplemented with L-arginine, glycine, L-taurine and L-lysine.