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Intravenous Glutamine Fails To Improve Gut Morphology After Radiation InjuryDepartment of Surgery, Uniformed Services University of the Health Sciences, Department of Physiology, Armed Forces Radiobiology Research Institute, Bethesda, Maryland
Department of Surgery, Uniformed Services University of the Health Sciences, Department of Physiology, Armed Forces Radiobiology Research Institute, Bethesda, Maryland Male Sprague-Dawley rats housed in individual metabolic cages received total parenteral nutrients via chronic indwelling internal jugular catheters to determine whether supplementing parenteral nutrition with glutamine would accelerate recovery of small-bowel morphology after abdominal radiation. After recovering from catheter insertion for 3 days they received either 1000 cGy gamma radiation to the abdomen only or no radiation and immediately thereafter received iso-nitrogenous and isocaloric intravenous solutions containing either 0% or 2% glutamine at 1.58 mL/h for the next 5 days. Intestinal segments were then assayed for whole-bowel deoxyribose nucleic acid content and villus height. Irradiation caused a 40% decrement in these parameters, which were not restored by glutamine supplementation. Therefore, intravenous glutamine supplementation failed to accelerate recovery of small-bowel morphology in this model of combined surgical and radiation injury. (Journal of Parenteral and Enteral Nutrition 16:440-444, 1992)
Journal of Parenteral and Enteral Nutrition, Vol. 16, No. 5,
440-444 (1992) |
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