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Recolector de Ciencia Abierta, RECOLECTA
Bachelor thesis . 2016
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Permeabilidad intestinal y enfermedades autoinmunes

Authors: Franco García, María del Carmen;

Permeabilidad intestinal y enfermedades autoinmunes

Abstract

El epitelio intestinal separa el interior y el exterior del organismo. Supone una barrera que limita el paso a agentes patógenos que pueden comprometer la salud del individuo, pero a su vez debe permitir la absorción de nutrientes y sustancias necesarias o beneficiosas para el mismo. El moco que recubre todo el epitelio intestinal, la IgA secretada por el epitelio y retenida en el moco, las sustancias antimicrobianas secretadas por las Células Paneth y otras células epiteliales constituyen la primera barrera físico-química. Una vez superada, los microorganismos deben atravesar el epitelio, bien a través de las células o bien a través de los espacios que dejan entre ellas. Las uniones ocluyentes sellan los espacios entre células adyacentes y dotan al epitelio de una permeabilidad paracelular, impidiendo la penetración de microorganismos y moléculas patógenas. Si estas estructuras se alteran, pueden acceder al interior estas especies e iniciar una respuesta autoinmune en el organismo. El único regulador fisiológico de las uniones ocluyentes conocido es la zonulina, secretada por el epitelio intestinal en respuesta a microorganismos y el gluten. Actúa en el epitelio intestinal abriendo dichas uniones y provocando un aumento de permeabilidad intestinal. Exceso de zonulina puede suponer una permeabilidad intestinal excesiva que posibilitaría el paso de moléculas patógenas hacia el interior y activaría el sistema inmune del individuo. En el presente trabajo hemos hecho una revisión bibliográfica y hemos observado una relación entre la concentración de zonulina en plasma y el desarrollo de patologías autoinmunes como la enfermedad celíaca, la diabetes, el asma o la esclerosis múltiple Concluimos que la zonulina puede suponer un marcador y/o una diana tanto para el diagnóstico, como para el tratamiento o la prevención de este tipo de enfermedades

Universidad de Sevilla. Grado en Farmacia

Related Organizations
Keywords

Zonulina, Permeabilidad intestinal, Uniones ocluyentesenfermedad autoinmune

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green