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Amygdala pathology in Parkinson's disease

H Braak1, E Braak, D Yilmazer

  • 1Zentrum der Morphologie, J.W.Goethe Universität, Frankfurt/Main, Germany.

Acta Neuropathologica
|January 1, 1994
PubMed
Summary

Parkinson's disease (PD) causes specific pathological changes in the amygdala, particularly in certain nuclei. These amygdala alterations in PD may contribute to behavioral and autonomic dysfunction.

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Area of Science:

  • Neuroscience
  • Neuropathology

Background:

  • Parkinson's disease (PD) is a neurodegenerative disorder.
  • The amygdala plays a crucial role in processing emotions and autonomic functions.

Purpose of the Study:

  • To investigate the pathological changes in the amygdala during Parkinson's disease.
  • To map the distribution of Lewy bodies and neurites within the amygdala in PD.

Main Methods:

  • Histopathological examination of amygdala tissue from PD patients.
  • Analysis of the distribution and severity of Lewy body and Lewy neurite pathology.

Main Results:

  • Severe pathological changes, including Lewy bodies and neurites, are observed in the amygdala in PD.
  • The most affected nuclei are the accessory cortical and central nuclei.

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  • Specific nuclei like basal and lateral remain largely uninvolved, showing a consistent pattern across individuals.

    • Conclusions:

    • The amygdala exhibits a distinct pattern of pathology in Parkinson's disease.
    • These amygdala changes, affecting its gray matter and connections, likely contribute to the behavioral and autonomic symptoms seen in PD.