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Intestinal function and morphology in strongyloidiasis

F T Garcia, J T Sessions, W B Strum

    The American Journal of Tropical Medicine and Hygiene
    |September 1, 1977
    PubMed
    Summary
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    Strongyloides stercoralis infection does not directly cause malabsorption. Malabsorption in these patients is secondary to malnutrition, resolving with nutritional correction even if the parasite persists.

    Area of Science:

    • Gastroenterology
    • Infectious Diseases
    • Nutritional Science

    Background:

    • Strongyloides stercoralis is a parasitic nematode with debated effects on nutrient absorption.
    • Previous studies present conflicting data regarding the parasite's direct role in malabsorption.

    Purpose of the Study:

    • To investigate the relationship between Strongyloides stercoralis infection, nutritional status, and malabsorption.
    • To determine whether malabsorption is a direct consequence of the parasite or associated malnutrition.

    Main Methods:

    • A long-term observational study was conducted.
    • Subjects' nutritional status was meticulously assessed.
    • Malabsorption was evaluated in patients with and without concomitant malnutrition.

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    Main Results:

    • Well-nourished patients with S. stercoralis, even with intestinal inflammation, did not exhibit malabsorption.
    • Patients with S. stercoralis and malnutrition consistently showed absorptive defects.
    • Abnormal absorption persisted without nutritional correction but resolved with it, irrespective of parasite presence.

    Conclusions:

    • The malabsorption syndrome associated with Strongyloides stercoralis infection is primarily secondary to concurrent malnutrition.
    • Nutritional status, rather than the parasite itself, appears to be the key factor in developing malabsorption in these cases.