Journal
BRAIN
Volume 139, Issue -, Pages 1026-1035Publisher
OXFORD UNIV PRESS
DOI: 10.1093/brain/aww022
Keywords
Parkinson's disease; cellular mechanisms; oxidative stress; neurodegeneration; alpha-synuclein
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Funding
- University of Technology Sydney
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Iron accumulation is a cardinal feature of degenerating regions in the Parkinson's disease brain. As a potent pro-oxidant, redox-active iron may be a key player in upstream mechanisms that precipitate cell death in this disorder. Although an elevation in brain iron levels is a normal feature of ageing, the increase is greater in Parkinson's disease; on the other hand, the effects of the disease are most marked in the nigrostriatal dopaminergic system. In this Update, we explain that neurodegeneration in the affected regions may result from the potent redox couple formed by iron and dopamine itself, and discuss the clinical implications of this molecular trait in this dynamic and rapidly moving area of Parkinson's disease research.
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