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[Hyperoxaluria in intestinal and liver diseases]

W Ruge, J Köhler, H Fromm

    Zeitschrift Fur Gastroenterologie
    |January 1, 1977
    PubMed
    Summary

    Patients with gastrointestinal diseases often show increased urinary oxalic acid. This hyperoxaluria, linked to fat malabsorption, may be reduced by dietary changes.

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    Area of Science:

    • Gastroenterology and Nephrology
    • Metabolic Research

    Context:

    • Urinary oxalic acid levels are crucial for understanding kidney stone formation and metabolic health.
    • Gastrointestinal diseases can significantly impact nutrient absorption and metabolic processes.

    Purpose:

    • To investigate urinary oxalic acid excretion in patients with various gastrointestinal diseases.
    • To identify correlations between hyperoxaluria and specific gastrointestinal conditions and malabsorption markers.

    Summary:

    • This study measured urinary oxalic acid in 28 healthy individuals and 97 patients with gastrointestinal disorders.
    • Significantly elevated oxalic acid was observed in patients with conditions like Crohn's disease, colitis, malabsorption syndromes, and liver cirrhosis.
    • Hyperoxaluria correlated with fecal fat excretion, impaired vitamin B12 absorption, and the extent of small intestine resection, suggesting a dietary hyperresorption mechanism linked to fat malabsorption.

    Impact:

    • Identifies specific gastrointestinal conditions associated with hyperoxaluria, aiding in diagnosis and management.
    • Suggests dietary interventions (reduced fat, ballast-free food) can lower urinary oxalic acid.
    • Highlights the link between fat malabsorption and secondary hyperoxaluria, prompting further research into underlying mechanisms.

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