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New developments in glutamine delivery.

P Fürst1

  • 1University of Hohenheim, Institute for Biological Chemistry and Nutrition, Stuttgart, Germany. b-c-nutr@uni-hohenheim.de

The Journal of Nutrition
|September 5, 2001
PubMed
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Synthetic glutamine dipeptides offer a stable and soluble alternative to free glutamine for clinical nutrition. These dipeptides improve patient outcomes and enable adequate amino acid provision in routine settings.

Area of Science:

  • Clinical Nutrition
  • Biochemistry
  • Medical Research

Background:

  • Free glutamine use in clinical nutrition is limited by instability and poor solubility.
  • Existing limitations necessitate the search for alternative glutamine sources.

Purpose of the Study:

  • To evaluate synthetic glutamine dipeptides as stable and soluble alternatives for parenteral nutrition.
  • To assess the clinical benefits and feasibility of glutamine dipeptide administration.

Main Methods:

  • Investigated stability and solubility of synthetic glutamine dipeptides.
  • Assessed plasma clearance, tissue accumulation, and urinary loss post-administration.
  • Evaluated clinical outcomes including nitrogen balance, immunity, and patient recovery.

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Main Results:

  • Glutamine dipeptides demonstrate stability during sterilization and high solubility.
  • Rapid plasma clearance and efficient hydrolysis by extracellular enzymes were observed.
  • Clinical use of glutamine dipeptides improved nitrogen balance, immunity, gut integrity, and reduced morbidity and mortality.

Conclusions:

  • Synthetic glutamine dipeptides are suitable for routine clinical use in parenteral nutrition.
  • Glutamine dipeptide administration represents a significant advancement in artificial nutrition for critically ill patients.
  • This approach corrects deficiencies in conventional nutrition, offering adequate amino acid supply.