Abstract
Low-level laser therapy (LLLT) is known for its ability to induce a photochemical process, primarily targeting mitochondria, a process referred to as photobiomodulation (PBM). Recently, its use has been attributed as an adjunct in obesity treatment, to stimulate lipolysis and apoptosis. However, the pathway of stimulation remains uncertain. Thus, the objective of this study was to understand whether mitochondrial stimulation occurs in adipose tissue cells after PBM therapy, which could lead to the processes of lipolysis and apoptosis. A non-randomized clinical trial was conducted using a split abdomen design in obese women who received red and infrared LED photobiomodulation therapy (PBMT). The patients underwent bariatric surgery, and adipose tissue samples were collected for immunohistochemical analysis with primary mitochondrial antibodies. Adipose tissue samples subjected to LED intervention exhibited positivity in mitochondrial antibodies for cAMP, DRP1, FAS, FIS1, MFN2, and OPA1 (p<0.001) compared to the control group. In conclusion, we observed that PBMT was capable of generating mitochondrial stimulation in adipose tissue cells, as evidenced by the positive antibody signals. This finding suggests that mitochondrial stimulation could be the mechanism and action underlying adipose tissue lipolysis and apoptosis.
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PhD. D. A. O. M., data collection and analysis, writing of the article. MSc. A. P. F., data collection and analysis, writing of the article. PhD. E. C. de O. G., contributions in the writing of the article. PhD. E. C., data collection, joint supervision of the research and contributions in the writing of the article. PhD. E. A. C., data collection, supervision of the research and contributions in the writing of the article.
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Modena, D.A.O., Ferro, A.P., de Oliveira Guirro, E.C. et al. Photobiomodulation therapy with light-emitting diode in stimulating adipose tissue mitochondria. Lasers Med Sci 38, 238 (2023). https://doi.org/10.1007/s10103-023-03906-y
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DOI: https://doi.org/10.1007/s10103-023-03906-y