Figure 4

LLLT reduces mRNA expression of the M1 marker, but increases expression of M2. (A) Quantitative analysis of mRNA expression of M1 markers, iNOS. (B) Quantitative analysis of mRNA expression of M1 markers, TNF-α. (C) Quantitative analysis of mRNA expression of M2 markers, Arg1. (D) Quantitative analysis of mRNA expression of M2 markers, IL-10. iNOS, inducible nitric oxide synthase. Arg1, arginase 1. TNF-α, tumour necrosis factor-alpha. IL-10, interleukin 10. (n = 3 rats per group per time point *P < 0.05; compared with control).