Improvement of intestinal permeability with alanyl-glutamine in HIV patients: a randomized, double blinded, placebo-controlled clinical trial - PubMed (original) (raw)
Randomized Controlled Trial
. 2013 Jan-Mar;50(1):56-63.
doi: 10.1590/s0004-28032013000100011.
Affiliations
- PMID: 23657308
- DOI: 10.1590/s0004-28032013000100011
Free article
Randomized Controlled Trial
Improvement of intestinal permeability with alanyl-glutamine in HIV patients: a randomized, double blinded, placebo-controlled clinical trial
Robério Dias Leite et al. Arq Gastroenterol. 2013 Jan-Mar.
Free article
Abstract
Context: Glutamine is the main source of energy of the enterocyte and diarrhea and weight loss are frequent in HIV infected patients.
Objective: To determine the effect of alanyl-glutamine supplementation on intestinal permeability and absorption in these patients.
Methods: Randomized double-blinded, placebo-controlled study using isonitrogenous doses of alanyl-glutamine (24 g/day) and placebo (glycine, 25 g/day) during 10 days. Before and after this nutritional supplementation lactulose and mannitol urinary excretion were determined by high performance liquid chromatography.
Results: Forty six patients with HIV/AIDS, 36 of whom were male, with 37.28 ± 3 (mean ± standard error) years were enrolled. Twenty two and 24 subjects were treated with alanyl-glutamine and with glycine respectively. In nine patients among all in the study protocol that reported diarrhea in the 14 days preceding the beginning of the study, mannitol urinary excretion was significantly lower than patients who did not report this symptom [median (range): 10.51 (3.01-19.75) vs. 15.37 (3.93-46.73); P = 0.0281] and lactulose/mannitol ratio was significantly higher [median (range): 0.04 (0.00-2.89) vs. 0.02 (0.00-0.19); P = 0.0317]. There was also a significant increase in mannitol urinary excretion in the group treated with alanyl-glutamine [median (range): 14.38 (8.25-23.98) before vs 21.24 (6.27-32.99) after treatment; n = 14, P = 0.0382].
Conclusion: Our results suggest that the integrity and intestinal absorption are more intensely affected in patients with HIV/AIDS who recently have had diarrhea. Additionally, nutritional supplementation with alanyl-glutamine was associated with an improvement in intestinal absorption.
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