Biological effects of low level laser therapy. Citation: (2014 Farivar)

Low level laser has been used to reduce pain, inflammation and edema, to promote wound, deeper tissues and nerves healing, and to prevent tissue damage since the invention of lasers. Sherin Farivar and colleagues review proposed cellular mechanisms responsible for the effect of visible light on mammalian cells, including cytochrome c oxidase (with absorption peaks in the Near Infrared | NIR). Mitochondria are thought to be a likely site for the initial effects of light, leading to increased ATP production, modulation of reactive oxygen species, and induction of transcription factors. These effects in turn lead to increased cell proliferation and migration (particularly by fibroblasts).

Citation: Farivar S, Malekshahabi T, Shiari R. Biological effects of low level laser therapy. J Lasers Med Sci. 2014 Spring;5(2):58-62. PMID: 25653800; PMCID: PMC4291815.

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