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Hexacarbon neuropathy: cell body changes are early, dynamic, and specific.

A B Sterman

    Annals of Neurology
    |September 1, 1984
    PubMed
    Summary

    Toxic neuropathy in rats involves dynamic cell body changes, with early decreases and later increases in Nissl bodies. These distinct patterns help differentiate between types of toxic axonopathy.

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    Cell body responses to axonal injury: traumatic axotomy versus toxic neuropathy.

    Experimental neurology·1985

    Area of Science:

    • Neuroscience
    • Toxicology
    • Cell Biology

    Background:

    • Toxic neuropathy involves damage to peripheral nerves.
    • Understanding cell body responses is crucial for diagnosing and treating nerve damage.

    Purpose of the Study:

    • To investigate the dynamic evolution of neuronal cell body alterations in toxic neuropathy.
    • To differentiate between neuropathies based on cell body remodeling patterns.

    Main Methods:

    • Rats were exposed to the neurotoxin 2,5-hexanedione.
    • Electron microscopy and stereology were used to examine dorsal root ganglia perikarya at different neuropathy stages.
    • Morphometric data were compared to rats exposed to acrylamide monomer.

    Main Results:

    • Early neuropathy stages showed decreased Nissl body volume fraction.
    • Advanced stages exhibited increased Nissl body volume fraction and chromatolysis-like changes.
    • Distinct differences in Nissl body and mitochondrial volume fractions were observed between 2,5-hexanedione and acrylamide exposure.

    Conclusions:

    • Cell body remodeling in axonopathy is an early, dynamic process.
    • Distinct patterns of cell body changes can differentiate between specific toxic neuropathies.
    • These findings suggest unique cell body functions are involved in different neuropathies.

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