Influence of urine volume on the assessment of intestinal permeability in affected children by multiple sugar probes
-
Riccardo Addobbati
,
Nicola Di Toro
Abstract
Background: In this study we have looked at the reliability of a multi-sugar test in a pediatric patient population and its accuracy at small urine volumes to evaluate intestinal permeability.
Methods: Out of 117 subjects enrolled, 31 were healthy and 86 were sick. A solution containing lactulose, rhamnose, sucrose, and sucralose was administered to subjects who were on fasting; the urine excreted during 5 h was collected and measured. Samples were analyzed by gas chromatography-tandem mass spectrometry and results were expressed as percentage of sugar recoveries and lactulose/rhamnose (L/R) ratio.
Results: The analyses showed a clear effect of low urinary volumes (≤240 mL) particularly affecting rhamnose excretion in healthy subjects and sucrose and sucralose recovery in diseased children. Despite the low rhamnose recovery, as lactulose is not similarly affected, the diagnostic reliability of L/R ratio is well preserved at low diuresis conditions. However, this ratio can be useful to discriminate acute conditions vs. clinical remissions only at high urine volumes. Data also suggest potential diagnostic applicability of sucrose and sucralose in children at high urine volumes.
Conclusions: In conclusion, the multi-sugar test has a good predictivity in pediatric subjects but results must be carefully interpreted in the face of reduced diuresis.
The authors thank Dr. Luca Ronfani and the Biostatistics Unit of our institution for performing the statistical analyses.
Conflict of interest statement
Authors’ conflict of interest disclosure: The authors stated that there are no conflicts of interest regarding the publication of this article.
Research funding: None declared.
Employment or leadership: None declared.
Honorarium: None declared.
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©2014 by Walter de Gruyter Berlin Boston
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- Frontmatter
- Editorial
- The ten commandments of laboratory testing for emergency physicians
- Review
- Critical role of RAGE in lung physiology and tumorigenesis: a potential target of therapeutic intervention?
- Opinion Papers
- Do we really need high-sensitive troponin immunoassays in the emergency department? Definitely, yes!
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