Photobiomodulation and Oxidative Stress: 980 nm Diode Laser Light Regulates Mitochondrial Activity and Reactive Oxygen Species Production

Figure 3

Effects of the 980 nm laser on respiratory complexes: (a) Complex I activity; (b) Complex II activity; (c) Complex III activity; (d) Complex IV activity. Each panel is representative of five independent experiments, and data are expressed as . , , and indicate a significant difference for , 0.001, and 0.0001, respectively, between the nontreated sample (0 W) and the samples irradiated with different powers (0.1, 0.5, 0.8 W) for 60 seconds; spot size 0.78 cm².

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