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Oxidative stress and mitochondrial dysfunction in Parkinson's disease. Yusaku NAKABEPPU 1,2 1Department of Biochemistry, Medical Institute of Bioregulation, Kyoto University 2CRESTO, JST Keyword: 活性酸素 , 酸化ヌクレオチド , 8-オキソグアニン , -2-ヒドロキシアデニン , MTH1 pp.505-515
Published Date 2000/8/10
DOI https://doi.org/10.11477/mf.1431901166
  • Abstract
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Reduction of mitochondrial complex I activity in the electron transfer system in mitochondria and various abnormalities in mitochondrial DNA have been observed in the brain of Parkinson's disease (PD). These findings suggest that oxidative stress may cause neuronal cell death in PD. Recently, it has been reported that 8-oxoguanine, one of major oxidative damages in nucleic acids, is accumulated in cytoplasm of substantia nigra neurons of PD brain, and that expression of MTH1 protein which hydrolyzes oxidized purine nucleoside triphosphates, is highly induced in the substantia nigra neurons. Based on these new findings, molecular basis of oxidative stress and mitochondrial dysfunction involved in PD are discussed in this article.


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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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