Nigral burden of alpha-synuclein correlates with striatal dopamine deficit.
Identifieur interne : 002149 ( PubMed/Curation ); précédent : 002148; suivant : 002150Nigral burden of alpha-synuclein correlates with striatal dopamine deficit.
Auteurs : Gabor G. Kovacs [Autriche] ; Ivan J. Milenkovic ; Matthias Preusser ; Herbert BudkaSource :
- Movement disorders : official journal of the Movement Disorder Society [ 1531-8257 ] ; 2008.
English descriptors
- KwdEn :
- MESH :
- chemical , deficiency : Dopamine.
- chemical , metabolism : Dopamine Plasma Membrane Transport Proteins, alpha-Synuclein.
- metabolism : Substantia Nigra.
- pathology : Parkinson Disease.
- Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Postmortem Changes.
Abstract
Aggregated alpha-synuclein is the hallmark of Parkinson's disease (PD), diffuse Lewy body disease (DLBD), and multiple system atrophy (MSA). Physiologically, alpha-synuclein ensures normal functions of dopamine transporter (DAT) and tyrosine hydoxylase. In alpha-synucleinopathies, it accumulates in neuronal cytoplasm and neurites through several stages. It is unclear whether the accumulation of pathological alpha-synuclein in the substantia nigra in PD correlates with the dopaminergic deficit in the striatal target. We evaluated the impact of the nigral burden of pathological alpha-synuclein immunoreactivity in 27 alpha-synucleinopathy brains by morphometric immunohistochemistry. DAT immunoreactivity in the striatum inversely correlates with the total alpha-synuclein burden in the substantia nigra but not with cytoplasmic inclusion counts only. This result has implications for imaging, clinicopathological correlative studies, and staging of the disease process.
DOI: 10.1002/mds.22207
PubMed: 18649394
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Physiologically, alpha-synuclein ensures normal functions of dopamine transporter (DAT) and tyrosine hydoxylase. In alpha-synucleinopathies, it accumulates in neuronal cytoplasm and neurites through several stages. It is unclear whether the accumulation of pathological alpha-synuclein in the substantia nigra in PD correlates with the dopaminergic deficit in the striatal target. We evaluated the impact of the nigral burden of pathological alpha-synuclein immunoreactivity in 27 alpha-synucleinopathy brains by morphometric immunohistochemistry. DAT immunoreactivity in the striatum inversely correlates with the total alpha-synuclein burden in the substantia nigra but not with cytoplasmic inclusion counts only. This result has implications for imaging, clinicopathological correlative studies, and staging of the disease process.</div></front></TEI><pubmed><MedlineCitation Owner="NLM" Status="MEDLINE"><PMID Version="1">18649394</PMID><DateCreated><Year>2008</Year><Month>10</Month><Day>02</Day></DateCreated><DateCompleted><Year>2009</Year><Month>04</Month><Day>08</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Electronic">1531-8257</ISSN><JournalIssue CitedMedium="Internet"><Volume>23</Volume><Issue>11</Issue><PubDate><Year>2008</Year><Month>Aug</Month><Day>15</Day></PubDate></JournalIssue><Title>Movement disorders : official journal of the Movement Disorder Society</Title><ISOAbbreviation>Mov. Disord.</ISOAbbreviation></Journal><ArticleTitle>Nigral burden of alpha-synuclein correlates with striatal dopamine deficit.</ArticleTitle><Pagination><MedlinePgn>1608-12</MedlinePgn></Pagination><ELocationID EIdType="doi" ValidYN="Y">10.1002/mds.22207</ELocationID><Abstract><AbstractText>Aggregated alpha-synuclein is the hallmark of Parkinson's disease (PD), diffuse Lewy body disease (DLBD), and multiple system atrophy (MSA). Physiologically, alpha-synuclein ensures normal functions of dopamine transporter (DAT) and tyrosine hydoxylase. In alpha-synucleinopathies, it accumulates in neuronal cytoplasm and neurites through several stages. It is unclear whether the accumulation of pathological alpha-synuclein in the substantia nigra in PD correlates with the dopaminergic deficit in the striatal target. We evaluated the impact of the nigral burden of pathological alpha-synuclein immunoreactivity in 27 alpha-synucleinopathy brains by morphometric immunohistochemistry. DAT immunoreactivity in the striatum inversely correlates with the total alpha-synuclein burden in the substantia nigra but not with cytoplasmic inclusion counts only. 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