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Electron microscopic studies in lipid storage disease.

R M Ludatscher, Y Naveh, L Auslaender

    Israel Journal of Medical Sciences
    |May 1, 1981
    PubMed
    Summary

    Ultrastructural analysis of Gaucher

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    Area of Science:

    • Cellular biology
    • Pathology
    • Electron microscopy

    Background:

    • Gaucher's disease and Niemann-Pick disease are lysosomal storage disorders.
    • These conditions involve the accumulation of specific lipids within cells.
    • Understanding cellular morphology is crucial for diagnosing and studying these diseases.

    Observation:

    • Routine electron microscopy of Gaucher's disease specimens revealed cytoplasmic bodies with elongated tubular structures.
    • Niemann-Pick disease specimens showed characteristic cytoplasmic, multilaminated, vacuolated formations.
    • Paraffin-embedded tissues, reprocessed for electron microscopy, exhibited varying degrees of preservation for both diseases.

    Findings:

    • Glucocerebroside-containing bodies in Gaucher's disease were moderately preserved in reprocessed paraffin tissues.
    • Sphingomyelin-containing vacuoles in Niemann-Pick disease were poorly preserved in reprocessed paraffin tissues.
    • Routine glutaraldehyde-osmium fixation provided superior ultrastructural detail compared to reprocessed paraffin methods.

    Implications:

    • Routine fixation is optimal for ultrastructural diagnosis of Gaucher's and Niemann-Pick diseases.
    • Reprocessing paraffin-embedded tissues offers limited utility for detailed ultrastructural examination in these lipid storage disorders.
    • This comparative study highlights the importance of appropriate sample preparation for accurate morphological diagnosis.

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