Fig. 5.

a The COX-1 RNA expression measured by real-time PCR at articular wash fluid. b The COX-2 RNA expression measured by real-time PCR at articular wash fluid (*p < 0.01) (n = 6 animals per group. Arthritis group (AT); arthritis group treated with diclofenac (Diclof); arthritis group treated with 1 J LLLT (AT + 1 J); arthritis group treated with 3 J LLLT (AT + 3 J); arthritis group treated with 6 J LLLT (AT + 6 J); arthritis group treated with 10 J LLLT (AT + 10 J). Results are expressed as mean ± SEM