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Lysozyme: a brief review.

M A Mir

    Postgraduate Medical Journal
    |May 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    Serum lysozyme (muramidase) levels are a useful lab test, but its role in diseases like acute myeloid leukemia (AML) remains unproven. Further research should focus on muramidase as a marker of cell function, not a cause of illness.

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    Area of Science:

    • Biochemistry
    • Hematology
    • Nephrology

    Background:

    • Serum lysozyme (muramidase) estimation is a common laboratory test.
    • Despite its potential, lysozyme's role as an etiological factor or prognostic indicator in various disorders, including acute myeloid leukemia (AML), has not been established.
    • Lysozyme is detected in urine of patients with renal tubular disorders and implicated in hypokalemia in AML.

    Purpose of the Study:

    • To review the literature on serum lysozyme's (muramidase) clinical significance.
    • To evaluate the unfulfilled promises of lysozyme as an etiological factor and prognostic indicator.
    • To redirect research focus towards muramidase as a marker of cell function.

    Main Methods:

    • Literature review of studies investigating serum lysozyme (muramidase).

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  • Analysis of lysozyme's proposed roles in various diseases and conditions.
  • Examination of evidence linking lysozyme to hypokalemia in acute myeloid leukemia.

    • Main Results:

    • Lysozyme's established role as an etiological factor or prognostic indicator in disorders remains unfulfilled.
    • Lysozyme is found in urine of patients with renal tubular disorders.
    • Hypokalemia in AML may be linked to an unidentified substance with a similar molecular weight to lysozyme.

    Conclusions:

    • Serum lysozyme estimation is a valuable laboratory test but its clinical impact requires re-evaluation.
    • Research should shift from viewing muramidase as an etiological factor to understanding it as an indicator of cell function.
    • The cause of hypokalemia in AML might be a substance distinct from lysozyme, necessitating further investigation.