Hyaluronic acid in tobacco-exposed rats. Inflammatory reaction, and duration of effect
Acta cir. bras
; 34(2): e201900202, 2019. tab, graf
Artigo
em Inglês
| LILACS
| ID: biblio-989055
Biblioteca responsável:
BR1.1
ABSTRACT
Abstract Purpose:
To evaluate the hyaluronic acid (HA) inflammatory reaction, fibroblasts, fibrosis and duration of effect in the dorsal region of tobacco-exposed rats.Methods:
Ten Wistar rats were divided into two groups tobacco-exposed-group (TEG;n=5) and air-control-group (CG;n=5). The TEG animals were tobacco-exposed twice a day, 30-minutes/session, during 60 days. After this period, all animals received 0.1 mL HA subcutaneous injection in the dorsal area. The volume of HA was measured immediately after HA injection and weekly using a hand-caliper in nine weeks. After this period, all the animals were euthanized, and a specimen of was collected to evaluate inflammatory cells, fibroblasts, and fibrosis by HE.Results:
This study showed a higher inflammatory reaction in TEG than CG inflammatory cell-count (CG 1.07±0.9; TEG 8.61±0.36, p<0.001); fibroblast count (CG 2.92±0.17; TEG 19.14±0.62, p<0.001), and fibrosis quantification (CG 2.0; TEG 3.75, p<0.001). The analysis of the HA volume in nine weeks in the dorsal region did not show a difference between groups (p=0.39).Conclusions:
This study suggested that the HA injection in the TEG caused an increase in inflammatory cell count, fibroblast, and fibrosis quantification when compared to the CG. There was no difference in the duration of effect of HA between the groups.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Tabaco
/
Exposição por Inalação
/
Viscossuplementos
/
Fibroblastos
/
Ácido Hialurônico
/
Inflamação
Tipo de estudo:
Estudo prognóstico
Limite:
Animais
Idioma:
Inglês
Revista:
Acta cir. bras
Assunto da revista:
CIRURGIA GERAL
/
Procedimentos Cir£rgicos Operat¢rios
Ano de publicação:
2019
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
USP/BR
/
Universidade de São Paulo/BR