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Title: Effect of long-term oral glutamine supplements on small intestinal permeability in patients with Crohn's disease
Authors: Den Hond, Elly
Hiele, Martin
Peeters, M
Ghoos, Yvo
Rutgeerts, Paul #
Issue Date: Mar-1999
Series Title: JPEN. Journal of parenteral and enteral nutrition vol:23 issue:1 pages:7-11
Abstract: Background: Glutamine is a major fuel and an important nitrogen source for the small intestinal cell. It plays a key role in maintaining mucosal cell integrity and gut barrier function. Increased permeability may be a factor in the pathogenesis of Crohn's disease and may be an interesting parameter in the follow-up of the disease. Therefore, the aim of this study was to examine whether oral glutamine supplements are able to restore an increased intestinal permeability in patients with Crohn's disease. METHODS: The inclusion criteria for the study were Crohn's disease and a disturbed small intestinal permeability for 51Cr-EDTA. Of 38 patients screened, 18 had an increased permeability (6 hours urinary excretion >1.1% of label recovered in urine). Fourteen patients were included in the study and were randomized to receive either oral glutamine (7 g three times per day; n = 7) or placebo (7 g glycine three times per day; n = 7) in addition to their normal treatment during a 4-week period. The study was performed in a double-blind manner. RESULTS: Baseline permeability (mean +/- SD) was 2.32%+/-0.77% dose in the glutamine group and 2.29%+/-0.67% dose in the placebo group. Permeability did not change significantly after glutamine (3.26%+/-2.15% dose) or after placebo (2.27%+/-1.32% dose). There was no significant effect on plasma glutamine, plasma glutamate, plasma ammonium, Crohn's disease activity index, C-reactive protein, or nutritional status. CONCLUSIONS: Oral glutamine supplements, in the dose administered, do not seem to restore impaired permeability in patients with Crohn's disease.
ISSN: 0148-6071
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Translational Research in GastroIntestinal Disorders
Hypertension and Cardiovascular Epidemiology
# (joint) last author

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