Figure 3.

Representative in vivo fluorescence images of NADH, FAD, and the tissue redox ratio (NADH/FAD) for representative wounds over days: unlike the wound on the sham-treated mice, the FR-PBM treatment increased the NADH intensity of the wounds and decreased the FAD intensity. Therefore, at days 6 and 9 of post wounding, the wound on FR-PBM mice showed a higher redox ratio in comparison with sham-treated mice. NADH, nicotinamide adenine dinucleotide; FAD, flavin adenine dinucleotide; FR, far-red; PBM, photobiomodulation.