Effects of anti-TNF-α in experimental diversion colitis
Acta cir. bras
; 34(10): e201901004, Oct. 2019. graf
Artigo
em Inglês
| LILACS
| ID: biblio-1054674
Biblioteca responsável:
BR1.1
ABSTRACT
Abstract Purpose:
To evaluate the effects of infliximab on the inflammation of the colonic mucosa devoid from fecal stream.Methods:
Twenty-four rats were submitted to a Hartmann's procedure. They remained for 12 weeks with the fecal derivation to development of diversion colitis on excluded colorectal stump. After this period, they were divided into 3 groups one group received intervention with saline (2.0 mL / week), other group infliximab at doses of 5 mg/kg/week and the other 10 mg/kg/week for five consecutively weeks. Concluded the intervention period, the animals were euthanized to remove colon segments with and without fecal stream. Colitis was diagnosed by histological analysis and the degree of inflammation by validated score. The neutrophilic infiltrate was evaluated by tissue expression of myeloperoxidase identified by immunohistochemical. The tissue content of myeloperoxidase was measured by computer-assisted image analysis.Results:
The inflammatory score was high in colonic segments without fecal stream. The intervention with infliximab reduced the inflammatory score in excluded colonic segments. The content of myeloperoxidase was reduced in colonic segments of animals treated with infliximab mainly in high concentrations.Conclusion:
Intervention with infliximab reduced the inflammation and the neutrophil infiltrate in colonic segments devoid of the fecal stream.
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
LILACS
Assunto principal:
Fármacos Gastrointestinais
/
Fator de Necrose Tumoral alfa
/
Colite
/
Infliximab
Tipo de estudo:
Estudo de avaliação
/
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:
USF/BR
/
Universidade Católica do Paraná/BR
/
Universidade São Francisco/BR
/
Universidade de São Paulo/BR