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[Lissencephaly: agyria. A study using the Golgi technic]

I Ferrer, E Fernandez-Alvarez

    Journal of the Neurological Sciences
    |October 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

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    This study details a lissencephaly (agyria) case, revealing abnormal neuronal organization in the fronto-parietal cortex. Findings highlight misplaced neurons and developmental variations, offering insights into brain malformations.

    Area of Science:

    • Neuroscience
    • Developmental Biology
    • Neuropathology

    Context:

    • Lissencephaly, characterized by a smooth brain surface (agyria), results from neuronal migration defects during development.
    • Understanding the cytoarchitecture of the lissencephalic cortex is crucial for comprehending associated neurological deficits.

    Purpose:

    • To investigate the cytoarchitecture of the fronto-parietal cortex in a case of lissencephaly using Golgi staining.
    • To characterize the neuronal morphology, layering, and disposition within the abnormal cortical structure.

    Summary:

    • Golgi staining revealed the external cellular layer of the lissencephalic cortex comprises neurons from normal cortical layers V and VI.
    • A less cellular layer contained large pyramidal neurons with extensive dendritic branching, while a deeper layer showed a disorganized neuronal pool with immature forms.

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  • Abnormalities included disorganization, rotated neurons, and atypical dendritic projections, though axons consistently showed a descending direction.

    • Impact:

    • This research contributes to the anatomical understanding of lissencephaly, providing detailed cellular insights into cortical malformations.
    • The findings offer a basis for further research into the functional consequences of these anatomical abnormalities and potential therapeutic targets.