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Related Experiment Videos

Bone magnesium pools in uremia.

A C Alfrey, N L Miller

    The Journal of Clinical Investigation
    |December 1, 1973
    PubMed
    Summary
    This summary is machine-generated.

    Bone magnesium exists in surface and crystal pools. Chronic renal failure increases both pools, while serum magnesium levels significantly influence bone magnesium concentration.

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    Area of Science:

    • Biochemistry
    • Nephrology
    • Bone Metabolism

    Background:

    • Bone magnesium exists in distinct pools with varying accessibility.
    • Chronic renal failure and hypomagnesemia can alter magnesium homeostasis.
    • Magnesium's role in bone crystal structure and stability is not fully understood.

    Purpose of the Study:

    • To characterize in vitro bone magnesium pools in various patient groups.
    • To investigate the relationship between serum magnesium and bone magnesium.
    • To explore the potential role of magnesium in renal osteodystrophy.

    Main Methods:

    • In vitro analysis of bone specimens from control subjects, chronic renal failure patients (pre- and post-transplantation), and hypomagnesemia patient.
    • Incineration studies to differentiate and mobilize bone magnesium pools.

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  • Correlation of bone magnesium levels with serum magnesium concentrations.

    • Main Results:

    • Bone magnesium comprises a surface pool (30%) and an integral crystal pool.
    • Both pools are elevated in chronic renal failure and reduced in hypomagnesemia.
    • Serum magnesium level is a primary determinant of bone magnesium concentration.

    Conclusions:

    • Surface bone magnesium reflects acute serum magnesium changes, while the crystal pool relates to bone formation and resorption.
    • Excess bone magnesium may contribute to renal osteodystrophy due to its influence on crystal properties.
    • Understanding magnesium dynamics in bone is crucial for managing renal bone diseases.