Low-level red laser improves healing of second-degree burn when applied during proliferative phase

Lasers in Medical Science
Eduardo Tavares Lima TrajanoAndréa Monte-Alto-Costa

Abstract

The aim of this study was to investigate the effects of low-level red laser on tissue repair in rats submitted to second-degree burn, evaluating if the timing of laser treatment influences the healing process. The animals had their backs shaved and divided as follows: control group (n = 12)-rats burned and not irradiated, early laser group (n = 12)-rats burned and irradiated from day 1 after injury for five consecutive days, and late laser group (n = 14)-rats burned and irradiated from day 4 after injury for five consecutive days. Laser irradiation was according to a clinical protocol (20 J/cm(2), 100 mW, continuous wave emission mode, 660 nm) as recommended by the laser device manufacturer. Half of the animals were sacrificed 10 days after burn, and the other animals were sacrificed 21 days after burn. The late laser group accelerated wound contraction 10 and 21 days after burn. The late laser group accelerated reepithelialization 18 days after burn. The late laser group increases the granulation tissue 10 and 21 days after burn. Both irradiated groups increased type III collagen expression and TGF-β 21 days after burn. Both irradiated groups increased macrophage and myofibroblast numbers 10 days after burn and decreased 21 da...Continue Reading

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Citations

Dec 13, 2016·Photodermatology, Photoimmunology & Photomedicine·Anju Yadav, Asheesh Gupta
Nov 5, 2017·Lasers in Medical Science·Bharath RathnakarKrishna Kishore Mahato
Dec 1, 2017·International Ophthalmology·Alexandre de Carvalho Mendes Paiva, Adenilson de Souza da Fonseca
Sep 2, 2019·Lasers in Medical Science·Andrezza Maria Côrtes Thomé LimaAdenilson de Souza da Fonseca
Feb 26, 2020·Journal of Tissue Engineering and Regenerative Medicine·Ana Laura Martins de AndradeNivaldo Antonio Parizotto
Dec 25, 2019·Systematic Reviews·Fernanda de Cássia Israel CardosoMaria Helena Melo Lima
Jul 16, 2021·Photobiomodulation, Photomedicine, and Laser Surgery·Naira Figueiredo DeanaVanderlei Salvador Bagnato
Jan 5, 2022·Photobiomodulation, Photomedicine, and Laser Surgery·Nooshafarin KazemikhooMostafa Dahmardehei

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