Abstract
The light-emitting diode (LED) is considered a therapeutic tool due to its anti-inflammatory, analgesic, and wound-healing effects, which occur through angiogenesis, decrease in IL-1β and IL-6 secretion, and acceleration of the cicatricial process. Snakebites are an important public health problem in tropical regions of the world. LED treatment is a therapeutic tool associated with serum therapy used to minimize the local effects of snakebites, including decrease in creatine kinase (CK) and lactate dehydrogenase (LDH) concentrations, myonecrosis, and inflammatory and haemorrhagic responses. In this study, we analysed the photobiomodulation effect of LED on the activation of murine macrophages induced by BthTX-I or BthTX-II isolated from Bothrops jararacussu venom. Photobiomodulation caused an increase in mitochondrial metabolism and a considerable decrease in cytotoxicity in murine macrophages. Moreover, it induced a decrease in reactive oxygen species and nitrogen liberation. However, photobiomodulation caused an increase in macrophage phagocytic capacity and lipid droplet formation. The results of this study corroborated with those of others in an unprecedented way and provide a better understanding of the mechanism of action of photobiomodulation, besides offering a coadjuvant action treatment for the local effects of snakebites, not achieved with serum therapy alone.
Published Version
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