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Related Experiment Videos

[Glutamine (Gln) supplementation in septic rats]

S Yoshida1, K Yamasaki, A Kaibara

  • 1First Department of Surgery, Kurume University, School of Medicine, Japan.

Nihon Geka Gakkai Zasshi
|October 1, 1993
PubMed
Summary

Glutamine (Gln) supplementation improved protein metabolism and immune function in septic rats. This nutritional support enhanced tissue protein synthesis and bolstered immune responses, potentially preventing multiple organ failure in severe infections.

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Area of Science:

  • Nutritional Biochemistry
  • Immunology
  • Critical Care Medicine

Background:

  • Sepsis significantly disrupts protein metabolism and impairs immune function.
  • Nutritional support, particularly with glutamine (Gln), is crucial for managing septic patients.
  • Understanding Gln's specific effects on protein synthesis and immunity in sepsis is vital.

Purpose of the Study:

  • To investigate the impact of glutamine (Gln)-enriched total parenteral nutrition (TPN) on protein metabolism and immune function in rodent models of sepsis.
  • To determine if Gln supplementation can mitigate sepsis-induced metabolic derangements and immune suppression.

Main Methods:

  • Two experiments utilized Sprague-Dawley rats, inducing sepsis via E. coli or cecal ligation and puncture.
  • Rats received either standard TPN (STPN) or Gln-enriched TPN (GTPN).

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  • Protein synthesis rates (FSR) and markers of urea production, lymphocyte blastogenesis, and phagocytic index were assessed.

    • Main Results:

    • GTPN augmented fractional synthetic rates (FSR) in the ileum, colon, and muscle.
    • Sepsis increased urea production, an effect prevented by GTPN.
    • GTPN improved sepsis-induced reductions in lymphocyte blastogenesis and increased the phagocytic index.

    Conclusions:

    • Glutamine supplementation enhances protein metabolism and immune responses in septic states.
    • Gln-enriched TPN may serve as a protective nutritional strategy against sepsis-induced organ dysfunction.
    • These findings suggest Gln supplementation could be beneficial in preventing multiple organ failure in patients with severe infections.