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Related Experiment Videos

Sunlight and hypercalciuria.

E S Parry, I S Lister

    Lancet (London, England)
    |May 10, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Soldiers in the Persian Gulf experienced increased urinary calcium excretion, especially during the hot season. This suggests increased sunlight exposure may cause hypercalciuria and potentially kidney stones in military personnel.

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    Area of Science:

    • Environmental Medicine
    • Mineral Metabolism

    Background:

    • Military deployments involve climate changes impacting physiological health.
    • Understanding mineral excretion changes is crucial for soldier well-being.

    Purpose of the Study:

    • To investigate urinary calcium and magnesium excretion in soldiers deploying from temperate to tropical climates.
    • To identify potential risk factors for urinary calculi in deployed soldiers.

    Main Methods:

    • Measured urinary calcium and magnesium levels in two groups of soldiers.
    • Compared excretion patterns between UK baseline and Persian Gulf deployment (cold vs. hot season).
    • Monitored urinary calculi development over three years.

    Main Results:

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  • Soldiers deployed in the hot season showed immediate increases in urinary calcium excretion.
  • Magnesium/calcium ratios decreased significantly, resembling levels in stone formers.
  • Two cases of urinary calculi were observed within three years.

    • Conclusions:

    • Increased sunlight exposure in the Persian Gulf is the likely cause of hypercalciuria.
    • Climate-induced changes in mineral metabolism may increase urinary stone risk in deployed soldiers.