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Glutamine improves intestinal barrier function in experimental biliary obstruction.

J S White1, M Hoper, R W Parks

  • 1Department of Surgery, School of Medicine, Queen's University of Belfast, Belfast, UK. calgarysurgeon@mac.com

European Surgical Research. Europaische Chirurgische Forschung. Recherches Chirurgicales Europeennes
|February 9, 2006
PubMed
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Enteral glutamine supplementation improved intestinal barrier function and reduced bacterial translocation in a rodent model of biliary obstruction. This suggests glutamine may be a potential therapeutic agent for managing complications associated with this condition.

Area of Science:

  • Gastroenterology
  • Immunology
  • Surgical Research

Background:

  • Extrahepatic biliary obstruction compromises intestinal barrier function, leading to bacterial translocation and systemic inflammation.
  • The role of glutamine in preserving intestinal barrier integrity during biliary obstruction remains underexplored.

Purpose of the Study:

  • To investigate the impact of enteral glutamine administration on intestinal permeability and bacterial translocation in a rodent model of biliary obstruction.

Main Methods:

  • Rodent model of experimental biliary obstruction.
  • Assessment of intestinal permeability using 14C excretion.
  • Evaluation of bacterial translocation to extra-intestinal sites.
  • Analysis of bacterial fragments and endotoxin exposure.

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Main Results:

  • Glutamine significantly reduced intestinal permeability (p=0.028).
  • Glutamine administration decreased bacterial translocation incidence (p=0.03) and bacterial fragment translocation (p=0.01).
  • Evidence suggests reduced endotoxin exposure, systemic inflammation, and enhanced immune-mediated bacterial killing.

Conclusions:

  • Enteral glutamine modulates intestinal permeability and reduces bacterial translocation in experimental biliary obstruction.
  • Glutamine may enhance immune system's bacterial killing capacity.
  • Further research into glutamine's therapeutic potential for biliary obstruction is warranted.