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Related Experiment Videos

Collagen content in human ulnar nerve

K R McFarlane, M Pollock, D B Myers

    Acta Neuropathologica
    |January 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Increased endoneurial collagen in the cubital tunnel was observed in the ulnar nerve. Extrafascicular collagen did not significantly increase, but Renaut bodies were more frequent where endoneurial collagen was high.

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    Area of Science:

    • Orthopedics
    • Neurology
    • Histology

    Background:

    • The ulnar nerve is susceptible to compression at the elbow.
    • Collagen composition changes may underlie nerve pathology.

    Purpose of the Study:

    • To quantitatively analyze ulnar nerve collagen distribution.
    • To investigate the relationship between collagen content, nerve morphology, and Renaut bodies.

    Main Methods:

    • Quantitative collagen analysis of ulnar nerve samples from nine subjects.
    • Assessment of endoneurial and extrafascicular collagen.
    • Evaluation of Renaut body frequency and nerve cross-sectional area.

    Main Results:

    • Significant increase in endoneurial collagen within the cubital tunnel.

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  • No significant increase in extrafascicular collagen at the elbow, except in cases of nerve enlargement.
  • Increased frequency of Renaut bodies correlated with high endoneurial collagen.
  • No correlation found between nerve cross-sectional area and collagen content.

    • Conclusions:

    • Endoneurial collagen accumulation is a key feature in the cubital tunnel region of the ulnar nerve.
    • Renaut bodies may indicate areas of localized collagen deposition.
    • Nerve cross-sectional area is not a reliable indicator of collagen changes in this context.