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Related Experiment Videos

[Morphological changes in the cerebral cortex after a stroke].

A A Chuamkov, A A Istomin

    Arkhiv Patologii
    |January 1, 1986
    PubMed
    Summary

    Stroke-induced brain damage affects speech and movement. The study found that the degree of speech recovery correlates with the intensity of neural repair processes in the brain cortex after a stroke.

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    [The use of perfusion for brain fixation].

    Arkhiv patologii·1994

    Area of Science:

    • Neuroscience
    • Neuropathology
    • Stroke Research

    Context:

    • Investigated the neuropathological changes in the brains of 29 right-handed individuals following stroke.
    • Examined patients who died between 4 hours and 6 years post-stroke, presenting with diverse speech and movement disorders.
    • Observed partial or complete speech recovery in 10 cases, indicating potential for neural adaptation.

    Purpose:

    • To correlate clinical observations of speech recovery with morphological changes in the brain's speech areas.
    • To understand how the timing, location, and size of a stroke lesion influence neuronal and glial alterations.
    • To elucidate the relationship between the intensity of neural repair processes and the extent of speech recovery post-stroke.

    Summary:

    • Aphasias stemmed from lesions affecting associative fibers, direct cortical destruction, or hematoma pressure on speech zones.
    • Neuronal, nerve fiber, and neuroglial changes in cortical speech areas were time-dependent, lesion-specific (site and size), and sometimes correlated with clinical presentation.
    • Clinical and morphological data revealed a significant correlation between the degree of speech recovery and the intensity of repair processes in neurons and nerve fibers within cortical speech areas.

    Impact:

    • Provides insights into the neuropathological basis of speech recovery after stroke.
    • Highlights the importance of neural repair mechanisms in the cerebral cortex for functional restoration.
    • Informs potential therapeutic strategies targeting neural repair to improve outcomes for stroke survivors with aphasia.

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