TGFB1 and gas gangrene: In the inflammatory phase of muscle tissue repair, the effects were more accentuated in the group treated with PBM at 780 nm, as this wavelength led to a decrease in myonecrosis and in the number of both inflammatory cells and CD68+ macrophages (M1 phenotype), which was accompanied by an increase in the number of CD206+ macrophages (M2 phenotype) and expression of TGF‐β mRNA 2 days after injury.