L-DOPA treatment from the viewpoint of neuroprotection: Possible mechanism of specific and progressive dopaminergic neuronal death in Parkinson's disease

Norio Ogawa, Masato Asanuma, Ikuko Miyazaki, Francisco J. Diaz-Corrales, Ko Miyoshi

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26 Citations (Scopus)

Abstract

With regard to the mechanism of selective dopaminergic neuronal death, experimental results of studies on the neurotoxicity of MPTP and rotenone indicate that degeneration of dopamine neurons is closely related to mitochondrial dysfunction, inflammatory process and oxidative stress, particularly with regard to the generation of quinones as dopamine neuron-specific oxidative stress. Thus, it is now clear that the presence of high levels of discompart-mentalized free dopamine in dopaminergic neurons may explain the specific vulnerability of dopaminergic neurons through the generation of highly toxic quinones.

Original languageEnglish
JournalJournal of Neurology
Volume252
Issue numberSUPPL. 4
DOIs
Publication statusPublished - Oct 2005

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Keywords

  • Dopamine quinone
  • Inflammation
  • L-DOPA
  • Mitochondrial dysfunction
  • Oxidative stress
  • Remodelling
  • Rotenone

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology

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