Ultrastructural analisys of the intestinal absorption process of protein macromolecule using fish as experimental model

Authors

  • Renato Lamounier Barbieri UNINOVE, São Paulo
  • Francisco Javier Hernández-Blazques

DOI:

https://doi.org/10.5585/conssaude.v1i0.162

Keywords:

absorção intestinal, ferritina, epitélio intestinal, microscopia eletrônica de transmissão, Prochilodus scrofa.

Abstract

Many cellular types presents histotopographically relations with the intestinal mucosa and the enterocytes. The latter is the very first type involved during the intestinal absorption process. By means of electrondense protein macromolecule (horse's spleen ferritin), orally administered, a gut segment, previously called, Prochilodys scrofa was studied in order to have this process clarified. Then the ferritin was observed in the intestinal lumen and among the microvilli of the epithelial cells. The occurrence of endocystosis, (more a pinocytotic-like process) with subsequent granule-gathering, in vesicles of different electrondensing concenctration as well as the ferritin migration process, through the absorptive epithelium, were also observed before the interaction between the enterocytes and the other cellular types that live in the intestinal mucosa, which play a helpful role in the course of the local defense response.

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Author Biographies

Renato Lamounier Barbieri, UNINOVE, São Paulo

Professor Doutor do Depto. de Saúde da UNINOVE; Pós-doutorando no Departamento de Histologia e Embriologia do Instituto de Ciências Biomédicas - ICB/USP

Francisco Javier Hernández-Blazques

Professor livre-docente do Departamento de Cirurgia, Setor de Anatomia da Faculdade de Medicina Veterinária e Zootecnia - FMVZ/USP

Published

2008-01-02

How to Cite

1.
Barbieri RL, Hernández-Blazques FJ. Ultrastructural analisys of the intestinal absorption process of protein macromolecule using fish as experimental model. Cons. Saúde [Internet]. 2008 Jan. 2 [cited 2024 Jul. 17];1:21-30. Available from: https://periodicos.uninove.br/saude/article/view/162

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Section

Artigos