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V. Suzanne Klimberg, MD; Rabih M. Salloum, MD; Michael Kasper, MD; Donald A. Plumley, MD; David J. Dolson, MD; R. Dean Hautamaki, MD; William R. Mendenhall, MD; Frank C. Bova, PhD; Kirby I. Bland, MD; Edward M. Copeland, III, MD; Wiley W. Souba, MD, ScD

Arch Surg. 1990;125(8):1040-1045.

Abstract
• The healing effects of glutamine given orally for 8 days as a single amino acid nutrient after treatment with whole abdominal radiation (10 Gy) were studied. Rats received isonitrogenous and isovolumic diets containing 3% glutamine or 3% glycine. Control rats were not irradiated but were given identical diets. In irradiated animals, survival was 100% in animals receiving glutamine compared with 45% in animals receiving glycine. Glutamine ingestion diminished bloody diarrhea and the incidence of bowel perforation. Arterial glutamine level was higher in animals receiving glutamine in the diet, as were gut glutamine extraction (35%±8% vs 12%±7%) and intestinal glutaminase activity. These metabolic improvements were associated with a marked increase in villous height, villous number, and the number of mitoses per crypt in rats receiving glutamine. Glutamine was not beneficial in control nonirradiated animals. The data demonstrated that provision of oral glutamine after abdominal radiation supported gut glutamine metabolism, improved mucosal morphometrics, and decreased the morbidity and mortality associated with this abdominal radiation model.

(Arch Surg. 1990;125:1040-1045)

Author Affiliations
From the Departments of Surgery (Drs Klimberg, Souba, Salloum, Plumley, Hautamaki, Bland, and Copeland), Pathology (Dr Dolson), and Radiation Therapy (Drs Kasper, Mendenhall, and Bova), University of Florida College of Medicine, Gainesville.

Footnotes
Accepted for publication March 16, 1990.

Read before the Annual Meeting of the Society for Surgical Oncology, San Francisco, Calif, May 22, 1989.

Reprint requests to Department of Surgery, Box J-286, University of Florida College of Medicine, Gainesville, FL 32610 (Dr Souba).

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