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Intestinal permeability in strongyloidiasis.
A L Werneck-Silva1, A M Sipahi, A O Damião
1Laboratório de Investigação Médica (LIM 07), Departamento de Gastroenterologia, Hospital das Clínicas, Universidade de São Paulo, São Paulo, SP, Brasil.
Summary
Strongyloides stercoralis infection reduces intestinal permeability. This study measured chromium-51-labeled ethylenediaminetetraacetic acid ((51)Cr-EDTA) excretion in patients with strongyloidiasis and healthy controls, revealing impaired gut barrier function in infected individuals.
Area of Science:
- Gastroenterology
- Infectious Diseases
- Parasitology
Background:
- Strongyloides stercoralis is a nematode parasite causing strongyloidiasis.
- Intestinal permeability is a crucial indicator of gut health and barrier function.
- Alterations in intestinal permeability are associated with various gastrointestinal disorders.
Purpose of the Study:
- To evaluate intestinal permeability in patients diagnosed with Strongyloides stercoralis infection.
- To compare intestinal permeability between patients with strongyloidiasis and healthy controls.
- To investigate potential mechanisms underlying altered gut permeability in strongyloidiasis.
Main Methods:
- Twenty-six patients with confirmed strongyloidiasis and 25 healthy volunteers were enrolled.
- Intestinal permeability was assessed using the (51)Cr-EDTA urinary excretion test over 24 hours.
- Urinary radioactivity levels of (51)Cr-EDTA were measured as a percentage of the ingested dose.
Main Results:
- Patients with strongyloidiasis exhibited significantly reduced urinary excretion of (51)Cr-EDTA compared to healthy controls (1.60% +/- 0.74% vs. 3.10% +/- 1.40%, P = 0.0001).
- This indicates a significant decrease in intestinal permeability in individuals infected with Strongyloides stercoralis.
- The findings suggest an impaired gut barrier function in the context of strongyloidiasis.
Conclusions:
- Intestinal permeability is diminished in patients with strongyloidiasis.
- Potential contributing factors include abnormalities in mucus secretion, intestinal motility, and loss of macromolecules.
- Further research is warranted to elucidate the precise mechanisms of impaired gut barrier function in this parasitic infection.