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Preclinical study of experimental burns treated with photobiomodulation and Human Amniotic Membrane, both isolated and associated

2023; UNIVERSIDADE DE SÃO PAULO; Volume: 31; Linguagem: Inglês

10.1590/1518-8345.5552.3726

1518-8345

Fernanda Cláudia Miranda Amorim, Emília Ângela Lo Schiavo Arisawa, Luciana Barros Sant’Anna, Ana Beatriz Mendes Rodrigues, Davidson Ribeiro Costa,

Corneal Surgery and Treatments

to evaluate the effect of photobiomodulation with low-level 660 nm laser alone or associated with Human Amniotic Membrane in the repair of partial-thickness burns in rats.an experimental study conducted with 48 male Wistar rats, randomized into four groups: Control, Human Amniotic Membrane, Low-Level Laser Therapy, and Low-Level Laser Therapy associated with Human Amniotic Membrane. The histopathological characteristics of the skin samples were analyzed 7 and 14 days after the burn. The data obtained were submitted to the Kolmogorov-Smirnov and Mann-Whitney tests.the histological analysis of the burn injuries showed a decrease in inflammation (p<0.0001) and an increase in proliferation of fibroblasts (p<0.0001) mainly at 7 days in all treatments related to the control group. At 14 days, the greater effectiveness in accelerating the healing process was significant (p<0.0001) in the Low-Level Laser Therapy group associated with the Human Amniotic Membrane.the association of photobiomodulation therapies with the Human Amniotic Membrane allowed verifying a reduction in the healing process time of the experimental lesions, stimulating its proposal as a treatment protocol in partial-thickness burns.