Figure 2

Effect of low-level laser therapy on IL-1β and IL-6 RNA expression in articular lavage fluid. (A) IL-1β expression measured by real-time polymerase chain reaction (PCR) in articular wash fluid. *P < 0.05, Tukey's test compared with the control group. #P < 0.05, Tukey's test compared with the injury group. (B) IL-6 RNA expression measured by real-time PCR of articular lavage fluid. *P < 0.05, Tukey's test compared with the control group. #P < 0.05, Tukey's test compared with the injury group. Results expressed as mean ± standard error of the mean. LLLT, low-level laser therapy.