Journal
SCIENCE
Volume 290, Issue 5493, Pages 985-989Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.290.5493.985
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Aggregated alpha -synuclein proteins form brain Lesions that are hallmarks of neurodegenerative synucleinopathies, and oxidative stress has been implicated in the pathogenesis of some of these disorders. Using antibodies to specific nitrated tyrosine residues in alpha -synuclein, we demonstrate extensive and widespread accumulations of nitrated alpha -synuclein in the signature inclusions of Parkinson's disease, dementia with Lewy bodies, the Lewy body variant of Alzheimer's disease, and multiple system atrophy brains. We also show that nitrated alpha -synuclein is present in the major filamentous building blocks of these inclusions, as well as in the insoluble fractions of affected brain regions of synucleinopathies. The selective and specific nitration of alpha -synuclein in these disorders provides evidence to directly link oxidative and nitrative damage to the onset and progression of neurodegenerative synucleinopathies.
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