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[Morphological changes in the human cerebral cortex in dementia].

H Braak1, E Braak

  • 1Zentrum der Morphologie, J.W. Goethe-Universität, Frankfurt/Main, Bundesrepublik Deutschland.

Journal Fur Hirnforschung
|January 1, 1991
PubMed
Summary
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Neurofibrillary changes in the temporal lobe are key indicators for Alzheimer's disease and Parkinson's disease. These changes, particularly in the entorhinal region, help differentiate these neurodegenerative conditions.

Area of Science:

  • Neuroscience
  • Neuropathology

Context:

  • Neurodegenerative diseases like Alzheimer's and Parkinson's impact intellectual capacity.
  • Morphological changes in the anteromedial temporal lobe are linked to cognitive impairment.

Purpose:

  • To investigate the distribution patterns of neurofibrillary changes in various neurodegenerative diseases.
  • To differentiate Alzheimer's disease, Parkinson's disease, and dementia with argyrophilic grains based on neuropathological hallmarks.

Summary:

  • Alzheimer's disease is characterized by intraneuronal neurofibrillary changes and extracellular amyloid deposits, predominantly affecting the entorhinal region and hippocampal formation.
  • In Parkinson's disease with cognitive decline, neurofibrillary changes are localized to the outer entorhinal cortex layer.
  • Dementia with argyrophilic grains shows predominant argyrophilic grains in the hippocampal formation and outer entorhinal cortex.

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Impact:

  • Understanding distinct neuropathological patterns aids in the differential diagnosis of cognitive decline.
  • Highlights the critical role of the entorhinal region in neurodegeneration and intellectual capacity impairment.