Estudo morfológico de nova mucosa intestinal formada sobre retalho homólogo de matriz acelular: modelo experimental em ratos

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

Background / Purpose: New intestinal mucosa can grow and be developed at different scaffolds. The acellular matrix is made off rich sustain protein and it allows the development of small bowel neomucosa. The purpose of this study was to analyze the morphology of the small bowel neomucosa at the acellular matrix tissue graft. Methods: Twenty-eight Wistar male rats were enrolled in the study. The small bowel of three animals was used to obtain the acellular matrix. Twenty five other animals were randomly assigned in three groups according to the time of post-operative euthanasia. In five rats the euthanasia happened at two weeks, in ten rats at four weeks and in ten rats at eight weeks. The acellular matrix was extracted from a detergent-enzymatic process at small bowel segments with sodium deoxycholate at 4% and deoxyribonuclease. The acellular matrix grafts were interposed at the terminal ileum antimesenteric wall. The morphometric characteristics of adjacent normal ileum mucosa and the developmental neomucosa were analyzed. Results: After eight weeks post operatory, all grafts were filled with new mucosa. The neomucosa showed morphometric values statistically bigger than the adjacent mucosa. Conclusion: The intestinal neomucosa developed under acellular matrix, which is obtained by a detergent-enzymatic process of the small bowel in rats, is quite normal as the adjacent intestinal neomucosa.

ASSUNTO(S)

cirurgia ratos-wistar intestino delgado biomateriais mucosa intestinal matriz celular

ACESSO AO ARTIGO

Documentos Relacionados