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The Biological Fight Against Pathogenic Bacteria and Protozoa


ABSTRACT: The animal gastrointestinal tract is a tube with two open ends; hence, from the microbial point of view it constitutes an open system, as opposed to the circulatory system that must be a tightly closed microbial-free environment. In particular, the human intestine spans ca. 200 m2 and represents a massive absorptive surface composed of a layer of epithelial cells as well as a paracellular barrier. The permeability of this paracellular barrier is regulated by transmembrane proteins known as claudins that play a critical role in tight junctions.

SUBMITTER: Villa T 

PROVIDER: S-EPMC7123701 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature

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