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Serum magnesium and irradiation.

J C Allegra, J A Stryker, A Abt

    Radiology
    |July 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Radiation therapy can cause diarrhea, but this study found no significant drop in serum magnesium levels in dogs or patients. Prednisone did increase magnesium in dogs, but diarrhea was not linked to magnesium changes.

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    Area of Science:

    • Oncology
    • Gastroenterology
    • Radiology

    Background:

    • Fractionated irradiation of the pelvis and lower abdomen can cause gastrointestinal side effects.
    • Diarrhea is a common side effect of radiation therapy.
    • The role of serum magnesium in radiation-induced diarrhea is not well understood.

    Purpose of the Study:

    • To investigate the relationship between serum magnesium levels and radiation-induced diarrhea.
    • To determine if serum magnesium concentration changes during pelvic and lower abdominal irradiation.
    • To assess the effect of prednisone on serum magnesium and stool frequency during irradiation.

    Main Methods:

    • Serum magnesium levels were measured in 10 dogs and 11 patients undergoing fractionated irradiation.
    • Stool frequency was monitored in all subjects.

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  • Five dogs received oral prednisone during irradiation.

    • Main Results:

    • No significant changes in serum magnesium were observed in control dogs or patients.
    • A significant increase in stool frequency was noted in both dogs and patients.
    • Dogs receiving prednisone showed a significant increase in serum magnesium concentration.

    Conclusions:

    • Radiation-induced diarrhea is not caused by a reduction in serum magnesium concentration.
    • Prednisone may influence serum magnesium levels during irradiation.
    • Further research is needed to fully understand the mechanisms of radiation-induced gastrointestinal side effects.