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Erschienen in: Lasers in Medical Science 3/2022

06.11.2021 | Original Article

Beneficial effects of infrared light-emitting diode in corticosteroid-resistant asthma

verfasst von: Robson Alexandre Brochetti, Simone Klein, Paula Tatiane Alonso, Adriana Schapochnik, Amílcar Sabino Damazo, Michael R. Hamblin, Maria Fernanda de Souza Setubal Destro, Adriana Lino-dos-Santos-Franco

Erschienen in: Lasers in Medical Science | Ausgabe 3/2022

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Abstract

Corticosteroid-resistant asthma (CRA) is a severe form of disease and clinically important, since patients do not respond to mainstay corticosteroid therapies. Thus, new therapies are needed. However, a big limiting factor in the understanding of CRA is the existence of different immunological and inflammatory phenotypes, a fact that makes it difficult to reproduce experimentally. Photobiomodulation (PBM) emerges as an alternative therapy based on earlier studies. This study aims to evaluate the effect of PBM using infrared light-emitting diode (ILED) on the development of corticosteroid-resistant asthma. Therefore, groups of rats were sensitized and challenged with ovalbumin plus Freund’s adjuvant for the induction of CRA, and treated or not with ILED directly in the respiratory tract on the skin (wavelength 810 nm; power 100 mW; density energy 5 J/cm; total energy 15 J; time 150 s). Our experimental model was capable to induce neutrophilic asthma. Besides that, the corticosteroid treatment did not reverse the lung cell migration as well as the levels of leukotriene B4, and interleukins 17 and 6. The treatment with ILED reduced the lung cell migration; myeloperoxidase activity; mast cell degranulation; and the levels of leukotriene B4, thromboxane B2, prostaglandin E2, tumoral necrosis factor alpha, and interleukins 17 and 6. Still, ILED increased the level of interleukin 10. In conclusion, we showed promisor effects of ILED when irradiated directly in the respiratory tract as adjuvant treatment of corticosteroid-resistant asthma.
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Metadaten
Titel
Beneficial effects of infrared light-emitting diode in corticosteroid-resistant asthma
verfasst von
Robson Alexandre Brochetti
Simone Klein
Paula Tatiane Alonso
Adriana Schapochnik
Amílcar Sabino Damazo
Michael R. Hamblin
Maria Fernanda de Souza Setubal Destro
Adriana Lino-dos-Santos-Franco
Publikationsdatum
06.11.2021
Verlag
Springer London
Erschienen in
Lasers in Medical Science / Ausgabe 3/2022
Print ISSN: 0268-8921
Elektronische ISSN: 1435-604X
DOI
https://doi.org/10.1007/s10103-021-03457-0

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