Data/hora: 09/06/2024 09:25:32

Provedor de dados: | 52
País: | Brazil
Título: | The effects of low level laser therapy on injured skeletal muscle
Autores: | Renno,Ana Claudia Muniz; Assis,Lívia; Peres,Beatriz; Rodrigues,Natalia Camargo; Brunelli,Roberta de Matos; Toma,Renata Luri; Medalha,Carla Christina; Ribeiro,Daniel Araki.
Data: | 2014-02-01
Ano: | 2014
Palavras-chave: | Low level laser therapy; Rat; Muscle repair; COX-2.
Resumo: | The main purpose of the present study was to investigate the effects of low-level laser therapy (LLLT) used in two different fluencies on injured skeletal muscle after cryolesion by means of histopathological analysis and immunohistochemistry for COX-2. A total of sixty male Wistar rats were randomly distributed into three groups: injured animals without any treatment; 808 nm laser treated group, at 10 J/cm² and 808 nm laser treated group, at 50 J/cm². Each group was divided into two different subgroups (n=10) on days 6 and 13 post-injury. The results showed that the animals irradiated with laser at 10 J/cm² or 50 J/cm² presented the areas with cell infiltrate and pointed out to minor and mild areas with destroyed zones compared with the control group. Also, a COX-2 downregulation was noticed in the groups exposed to laser at two fluences evaluated in this study. Significant statistically differences (p&lt;0.05) were noticed to collagen deposition in the laser treated animals, with the fluence of 50 J/cm² when compared to the other groups on day 13 post-surgery. Taken together, these results suggested that laser therapy could have positive effects on muscle repair in the rats after cryolesion.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000100008
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132014000100008
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.57 n.1 2014
Fonte: | info:eu-repo/semantics/openAccess