La maladie de Parkinson au Canada (serveur d'exploration)

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Association between α-synuclein blood transcripts and early, neuroimaging-supported Parkinson’s disease

Identifieur interne : 000354 ( Pmc/Checkpoint ); précédent : 000353; suivant : 000355

Association between α-synuclein blood transcripts and early, neuroimaging-supported Parkinson’s disease

Auteurs : Joseph J. Locascio [États-Unis] ; Shirley Eberly [États-Unis] ; Zhixiang Liao [États-Unis] ; Ganqiang Liu [États-Unis] ; Ashley N. Hoesing [États-Unis] ; Karen Duong [États-Unis] ; Ana Trisini-Lipsanopoulos [États-Unis] ; Kaltra Dhima [États-Unis] ; Albert Y. Hung [États-Unis] ; Alice W. Flaherty [États-Unis] ; Michael A. Schwarzschild [États-Unis] ; Michael T. Hayes [États-Unis] ; Anne-Marie Wills [États-Unis] ; U. Shivraj Sohur [États-Unis] ; Nicte I. Mejia [États-Unis] ; Dennis J. Selkoe [États-Unis] ; David Oakes [États-Unis] ; Ira Shoulson [États-Unis] ; Xianjun Dong [États-Unis] ; Ken Marek [États-Unis] ; Bin Zheng [États-Unis] ; Adrian Ivinson [États-Unis] ; Bradley T. Hyman [États-Unis] ; John H. Growdon [États-Unis] ; Lewis R. Sudarsky [États-Unis] ; Michael G. Schlossmacher [États-Unis] ; Bernard Ravina [Canada] ; Clemens R. Scherzer [États-Unis]

Source :

RBID : PMC:4643625

Abstract

The α-synuclein gene, SNCA, is selectively expressed in blood cells and neurons. Locascio et al. reveal a paradoxical reduction in SNCA transcript counts in the blood of individuals with early-stage, neuroimaging-supported Parkinson’s disease in three regional, national, and international populations. Low SCNA transcript abundance predicted subsequent cognitive decline.


Url:
DOI: 10.1093/brain/awv202
PubMed: 26220939
PubMed Central: 4643625


Affiliations:


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PMC:4643625

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<wicri:regionArea>4 Ann Romney Centre for Neurologic Diseases, Brigham and Women’s Hospital, Boston, MA 02115</wicri:regionArea>
<wicri:noRegion>MA 02115</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Ivinson, Adrian" sort="Ivinson, Adrian" uniqKey="Ivinson A" first="Adrian" last="Ivinson">Adrian Ivinson</name>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF4">4 Ann Romney Centre for Neurologic Diseases, Brigham and Women’s Hospital, Boston, MA 02115, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>4 Ann Romney Centre for Neurologic Diseases, Brigham and Women’s Hospital, Boston, MA 02115</wicri:regionArea>
<wicri:noRegion>MA 02115</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF5">5 Biomarkers Program, Harvard NeuroDiscovery Center, Boston, MA 02115, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>5 Biomarkers Program, Harvard NeuroDiscovery Center, Boston, MA 02115</wicri:regionArea>
<wicri:noRegion>MA 02115</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Hyman, Bradley T" sort="Hyman, Bradley T" uniqKey="Hyman B" first="Bradley T." last="Hyman">Bradley T. Hyman</name>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF2">2 Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>2 Department of Neurology, Massachusetts General Hospital, Boston, MA 02114</wicri:regionArea>
<wicri:noRegion>MA 02114</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF5">5 Biomarkers Program, Harvard NeuroDiscovery Center, Boston, MA 02115, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>5 Biomarkers Program, Harvard NeuroDiscovery Center, Boston, MA 02115</wicri:regionArea>
<wicri:noRegion>MA 02115</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Growdon, John H" sort="Growdon, John H" uniqKey="Growdon J" first="John H." last="Growdon">John H. Growdon</name>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF2">2 Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>2 Department of Neurology, Massachusetts General Hospital, Boston, MA 02114</wicri:regionArea>
<wicri:noRegion>MA 02114</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Sudarsky, Lewis R" sort="Sudarsky, Lewis R" uniqKey="Sudarsky L" first="Lewis R." last="Sudarsky">Lewis R. Sudarsky</name>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF7">7 Department of Neurology, Brigham and Women’s Hospital, Boston, MA 02115, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>7 Department of Neurology, Brigham and Women’s Hospital, Boston, MA 02115</wicri:regionArea>
<wicri:noRegion>MA 02115</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Schlossmacher, Michael G" sort="Schlossmacher, Michael G" uniqKey="Schlossmacher M" first="Michael G." last="Schlossmacher">Michael G. Schlossmacher</name>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF9">9 Institute for Neurodegenerative Disorders, New Haven, CT 06510, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>9 Institute for Neurodegenerative Disorders, New Haven, CT 06510</wicri:regionArea>
<wicri:noRegion>CT 06510</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Ravina, Bernard" sort="Ravina, Bernard" uniqKey="Ravina B" first="Bernard" last="Ravina">Bernard Ravina</name>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF10">10 Program in Neuroscience, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario K1H8M5, Canada</nlm:aff>
<country xml:lang="fr">Canada</country>
<wicri:regionArea>10 Program in Neuroscience, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario K1H8M5</wicri:regionArea>
<wicri:noRegion>Ontario K1H8M5</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Scherzer, Clemens R" sort="Scherzer, Clemens R" uniqKey="Scherzer C" first="Clemens R." last="Scherzer">Clemens R. Scherzer</name>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF1">1 Neurogenomics Lab and Parkinson Personalized Medicine Program, Harvard Medical School and Brigham and Women’s Hospital, Cambridge, MA 02139, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>1 Neurogenomics Lab and Parkinson Personalized Medicine Program, Harvard Medical School and Brigham and Women’s Hospital, Cambridge, MA 02139</wicri:regionArea>
<wicri:noRegion>MA 02139</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF2">2 Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>2 Department of Neurology, Massachusetts General Hospital, Boston, MA 02114</wicri:regionArea>
<wicri:noRegion>MA 02114</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF4">4 Ann Romney Centre for Neurologic Diseases, Brigham and Women’s Hospital, Boston, MA 02115, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>4 Ann Romney Centre for Neurologic Diseases, Brigham and Women’s Hospital, Boston, MA 02115</wicri:regionArea>
<wicri:noRegion>MA 02115</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF5">5 Biomarkers Program, Harvard NeuroDiscovery Center, Boston, MA 02115, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>5 Biomarkers Program, Harvard NeuroDiscovery Center, Boston, MA 02115</wicri:regionArea>
<wicri:noRegion>MA 02115</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<nlm:aff id="awv202-AFF7">7 Department of Neurology, Brigham and Women’s Hospital, Boston, MA 02115, USA</nlm:aff>
<country xml:lang="fr">États-Unis</country>
<wicri:regionArea>7 Department of Neurology, Brigham and Women’s Hospital, Boston, MA 02115</wicri:regionArea>
<wicri:noRegion>MA 02115</wicri:noRegion>
</affiliation>
</author>
</analytic>
<series>
<title level="j">Brain</title>
<idno type="ISSN">0006-8950</idno>
<idno type="eISSN">1460-2156</idno>
<imprint>
<date when="2015">2015</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
</fileDesc>
<profileDesc>
<textClass></textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">
<p>The α-synuclein gene,
<italic>SNCA</italic>
, is selectively expressed in blood cells and neurons. Locascio
<italic>et al.</italic>
reveal a paradoxical reduction in
<italic>SNCA</italic>
transcript counts in the blood of individuals with early-stage, neuroimaging-supported Parkinson’s disease in three regional, national, and international populations. Low
<italic>SCNA</italic>
transcript abundance predicted subsequent cognitive decline.</p>
</div>
</front>
</TEI>
<pmc article-type="research-article">
<pmc-comment>The publisher of this article does not allow downloading of the full text in XML form.</pmc-comment>
<front>
<journal-meta>
<journal-id journal-id-type="nlm-ta">Brain</journal-id>
<journal-id journal-id-type="iso-abbrev">Brain</journal-id>
<journal-id journal-id-type="publisher-id">brainj</journal-id>
<journal-id journal-id-type="hwp">brain</journal-id>
<journal-title-group>
<journal-title>Brain</journal-title>
</journal-title-group>
<issn pub-type="ppub">0006-8950</issn>
<issn pub-type="epub">1460-2156</issn>
<publisher>
<publisher-name>Oxford University Press</publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id pub-id-type="pmid">26220939</article-id>
<article-id pub-id-type="pmc">4643625</article-id>
<article-id pub-id-type="doi">10.1093/brain/awv202</article-id>
<article-id pub-id-type="publisher-id">awv202</article-id>
<article-categories>
<subj-group subj-group-type="heading">
<subject>Original Articles</subject>
</subj-group>
<subj-group subj-group-type="hwp-journal-coll">
<subject>1040</subject>
</subj-group>
</article-categories>
<title-group>
<article-title>Association between α-synuclein blood transcripts and early, neuroimaging-supported Parkinson’s disease</article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname>Locascio</surname>
<given-names>Joseph J.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF2">
<sup>2</sup>
</xref>
<xref ref-type="author-notes" rid="awv202-FN1">*</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Eberly</surname>
<given-names>Shirley</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF3">
<sup>3</sup>
</xref>
<xref ref-type="author-notes" rid="awv202-FN1">*</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Liao</surname>
<given-names>Zhixiang</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF4">
<sup>4</sup>
</xref>
<xref ref-type="author-notes" rid="awv202-FN1">*</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Liu</surname>
<given-names>Ganqiang</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Hoesing</surname>
<given-names>Ashley N.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF4">
<sup>4</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Duong</surname>
<given-names>Karen</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF4">
<sup>4</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Trisini-Lipsanopoulos</surname>
<given-names>Ana</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF4">
<sup>4</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Dhima</surname>
<given-names>Kaltra</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF4">
<sup>4</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Hung</surname>
<given-names>Albert Y.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Flaherty</surname>
<given-names>Alice W.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF2">
<sup>2</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF6">
<sup>6</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Schwarzschild</surname>
<given-names>Michael A.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Hayes</surname>
<given-names>Michael T.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF7">
<sup>7</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Wills</surname>
<given-names>Anne-Marie</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF2">
<sup>2</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Shivraj Sohur</surname>
<given-names>U.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Mejia</surname>
<given-names>Nicte I.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Selkoe</surname>
<given-names>Dennis J.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF4">
<sup>4</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF7">
<sup>7</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Oakes</surname>
<given-names>David</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF3">
<sup>3</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Shoulson</surname>
<given-names>Ira</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF8">
<sup>8</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Dong</surname>
<given-names>Xianjun</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Marek</surname>
<given-names>Ken</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF8">
<sup>9</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Zheng</surname>
<given-names>Bin</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF4">
<sup>4</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Ivinson</surname>
<given-names>Adrian</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF4">
<sup>4</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Hyman</surname>
<given-names>Bradley T.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF2">
<sup>2</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF5">
<sup>5</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Growdon</surname>
<given-names>John H.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF2">
<sup>2</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Sudarsky</surname>
<given-names>Lewis R.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF7">
<sup>7</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Schlossmacher</surname>
<given-names>Michael G.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF9">
<sup>10</sup>
</xref>
</contrib>
<contrib contrib-type="author">
<name>
<surname>Ravina</surname>
<given-names>Bernard</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF10">
<sup>11</sup>
</xref>
</contrib>
<contrib contrib-type="author" corresp="yes">
<name>
<surname>Scherzer</surname>
<given-names>Clemens R.</given-names>
</name>
<xref ref-type="aff" rid="awv202-AFF1">
<sup>1</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF2">
<sup>2</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF4">
<sup>4</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF5">
<sup>5</sup>
</xref>
<xref ref-type="aff" rid="awv202-AFF7">
<sup>7</sup>
</xref>
</contrib>
<aff id="awv202-AFF1">1 Neurogenomics Lab and Parkinson Personalized Medicine Program, Harvard Medical School and Brigham and Women’s Hospital, Cambridge, MA 02139, USA</aff>
<aff id="awv202-AFF2">2 Department of Neurology, Massachusetts General Hospital, Boston, MA 02114, USA</aff>
<aff id="awv202-AFF3">3 Department of Biostatistics and Computational Biology, University of Rochester Medical Center, Rochester, NY 14642, USA</aff>
<aff id="awv202-AFF4">4 Ann Romney Centre for Neurologic Diseases, Brigham and Women’s Hospital, Boston, MA 02115, USA</aff>
<aff id="awv202-AFF5">5 Biomarkers Program, Harvard NeuroDiscovery Center, Boston, MA 02115, USA</aff>
<aff id="awv202-AFF6">6 Department of Psychiatry, Massachusetts General Hospital, Boston, MA 02114, USA</aff>
<aff id="awv202-AFF7">7 Department of Neurology, Brigham and Women’s Hospital, Boston, MA 02115, USA</aff>
<aff id="awv202-AFF8">8 Program for Regulatory Science and Medicine, Department of Neurology, Georgetown University, Washington, DC 20007, USA</aff>
<aff id="awv202-AFF9">9 Institute for Neurodegenerative Disorders, New Haven, CT 06510, USA</aff>
<aff id="awv202-AFF10">10 Program in Neuroscience, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario K1H8M5, Canada</aff>
<aff id="awv202-AFF11">11 Voyager Therapeutics, Clinical Development, Cambridge, MA 02142, USA</aff>
</contrib-group>
<author-notes>
<corresp>Correspondence to: Clemens R. Scherzer, MD, Neurogenomics Lab and Parkinson Personalized Medicine Program, Harvard Medical School and Brigham and Women's Hospital, 65 Landsdowne Street, Suite 307A, Cambridge, MA 02139, USA E-mail:
<email>cscherzer@rics.bwh.harvard.edu</email>
</corresp>
<fn id="awv202-FN1">
<p>*These authors contributed equally to this work.</p>
</fn>
</author-notes>
<pub-date pub-type="ppub">
<month>9</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>28</day>
<month>7</month>
<year>2015</year>
</pub-date>
<volume>138</volume>
<issue>9</issue>
<fpage>2659</fpage>
<lpage>2671</lpage>
<history>
<date date-type="received">
<day>14</day>
<month>11</month>
<year>2014</year>
</date>
<date date-type="rev-recd">
<day>12</day>
<month>5</month>
<year>2015</year>
</date>
<date date-type="accepted">
<day>25</day>
<month>5</month>
<year>2015</year>
</date>
</history>
<permissions>
<copyright-statement>© The Author (2015). Published by Oxford University Press on behalf of the Guarantors of Brain. All rights reserved. For Permissions, please email: journals.permissions@oup.com</copyright-statement>
<copyright-year>2015</copyright-year>
</permissions>
<abstract abstract-type="precis">
<p>The α-synuclein gene,
<italic>SNCA</italic>
, is selectively expressed in blood cells and neurons. Locascio
<italic>et al.</italic>
reveal a paradoxical reduction in
<italic>SNCA</italic>
transcript counts in the blood of individuals with early-stage, neuroimaging-supported Parkinson’s disease in three regional, national, and international populations. Low
<italic>SCNA</italic>
transcript abundance predicted subsequent cognitive decline.</p>
</abstract>
<abstract abstract-type="graphical">
<p>
<fig id="fig1g" fig-type="featured" position="float">
<caption>
<p>The α-synuclein gene,
<italic>SNCA</italic>
, is selectively expressed in blood cells and neurons. Locascio
<italic>et al.</italic>
reveal a paradoxical reduction in
<italic>SNCA</italic>
transcript counts in the blood of individuals with early-stage, neuroimaging-supported Parkinson’s disease in three regional, national, and international populations. Low
<italic>SCNA</italic>
transcript abundance predicted subsequent cognitive decline.</p>
</caption>
<graphic xlink:href="awv202fig1g"></graphic>
</fig>
</p>
</abstract>
<abstract>
<p>There are no cures for neurodegenerative diseases and this is partially due to the difficulty of monitoring pathogenic molecules in patients during life. The Parkinson’s disease gene α-synuclein (
<italic>SNCA</italic>
) is selectively expressed in blood cells and neurons. Here we show that
<italic>SNCA</italic>
transcripts in circulating blood cells are paradoxically reduced in early stage, untreated and dopamine transporter neuroimaging-supported Parkinson’s disease in three independent regional, national, and international populations representing 500 cases and 363 controls and on three analogue and digital platforms with
<italic>P</italic>
< 0.0001 in meta-analysis. Individuals with
<italic>SNCA</italic>
transcripts in the lowest quartile of counts had an odds ratio for Parkinson’s disease of 2.45 compared to individuals in the highest quartile. Disease-relevant transcript isoforms were low even near disease onset. Importantly, low
<italic>SNCA</italic>
transcript abundance predicted cognitive decline in patients with Parkinson’s disease during up to 5 years of longitudinal follow-up. This study reveals a consistent association of reduced
<italic>SNCA</italic>
transcripts in accessible peripheral blood and early-stage Parkinson’s disease in 863 participants and suggests a clinical role as potential predictor of cognitive decline. Moreover, the three independent biobank cohorts provide a generally useful platform for rapidly validating any biological marker of this common disease.</p>
</abstract>
<kwd-group kwd-group-type="keywords">
<kwd>α-synuclein</kwd>
<kwd>biomarker</kwd>
<kwd>gene expression</kwd>
<kwd>biobank</kwd>
<kwd>mitochondria</kwd>
<kwd>cognitive decline</kwd>
</kwd-group>
<counts>
<page-count count="13"></page-count>
</counts>
</article-meta>
</front>
</pmc>
<affiliations>
<list>
<country>
<li>Canada</li>
<li>États-Unis</li>
</country>
</list>
<tree>
<country name="États-Unis">
<noRegion>
<name sortKey="Locascio, Joseph J" sort="Locascio, Joseph J" uniqKey="Locascio J" first="Joseph J." last="Locascio">Joseph J. Locascio</name>
</noRegion>
<name sortKey="Dhima, Kaltra" sort="Dhima, Kaltra" uniqKey="Dhima K" first="Kaltra" last="Dhima">Kaltra Dhima</name>
<name sortKey="Dhima, Kaltra" sort="Dhima, Kaltra" uniqKey="Dhima K" first="Kaltra" last="Dhima">Kaltra Dhima</name>
<name sortKey="Dhima, Kaltra" sort="Dhima, Kaltra" uniqKey="Dhima K" first="Kaltra" last="Dhima">Kaltra Dhima</name>
<name sortKey="Dong, Xianjun" sort="Dong, Xianjun" uniqKey="Dong X" first="Xianjun" last="Dong">Xianjun Dong</name>
<name sortKey="Dong, Xianjun" sort="Dong, Xianjun" uniqKey="Dong X" first="Xianjun" last="Dong">Xianjun Dong</name>
<name sortKey="Duong, Karen" sort="Duong, Karen" uniqKey="Duong K" first="Karen" last="Duong">Karen Duong</name>
<name sortKey="Duong, Karen" sort="Duong, Karen" uniqKey="Duong K" first="Karen" last="Duong">Karen Duong</name>
<name sortKey="Duong, Karen" sort="Duong, Karen" uniqKey="Duong K" first="Karen" last="Duong">Karen Duong</name>
<name sortKey="Eberly, Shirley" sort="Eberly, Shirley" uniqKey="Eberly S" first="Shirley" last="Eberly">Shirley Eberly</name>
<name sortKey="Flaherty, Alice W" sort="Flaherty, Alice W" uniqKey="Flaherty A" first="Alice W." last="Flaherty">Alice W. Flaherty</name>
<name sortKey="Flaherty, Alice W" sort="Flaherty, Alice W" uniqKey="Flaherty A" first="Alice W." last="Flaherty">Alice W. Flaherty</name>
<name sortKey="Growdon, John H" sort="Growdon, John H" uniqKey="Growdon J" first="John H." last="Growdon">John H. Growdon</name>
<name sortKey="Hayes, Michael T" sort="Hayes, Michael T" uniqKey="Hayes M" first="Michael T." last="Hayes">Michael T. Hayes</name>
<name sortKey="Hoesing, Ashley N" sort="Hoesing, Ashley N" uniqKey="Hoesing A" first="Ashley N." last="Hoesing">Ashley N. Hoesing</name>
<name sortKey="Hoesing, Ashley N" sort="Hoesing, Ashley N" uniqKey="Hoesing A" first="Ashley N." last="Hoesing">Ashley N. Hoesing</name>
<name sortKey="Hoesing, Ashley N" sort="Hoesing, Ashley N" uniqKey="Hoesing A" first="Ashley N." last="Hoesing">Ashley N. Hoesing</name>
<name sortKey="Hung, Albert Y" sort="Hung, Albert Y" uniqKey="Hung A" first="Albert Y." last="Hung">Albert Y. Hung</name>
<name sortKey="Hyman, Bradley T" sort="Hyman, Bradley T" uniqKey="Hyman B" first="Bradley T." last="Hyman">Bradley T. Hyman</name>
<name sortKey="Hyman, Bradley T" sort="Hyman, Bradley T" uniqKey="Hyman B" first="Bradley T." last="Hyman">Bradley T. Hyman</name>
<name sortKey="Ivinson, Adrian" sort="Ivinson, Adrian" uniqKey="Ivinson A" first="Adrian" last="Ivinson">Adrian Ivinson</name>
<name sortKey="Ivinson, Adrian" sort="Ivinson, Adrian" uniqKey="Ivinson A" first="Adrian" last="Ivinson">Adrian Ivinson</name>
<name sortKey="Liao, Zhixiang" sort="Liao, Zhixiang" uniqKey="Liao Z" first="Zhixiang" last="Liao">Zhixiang Liao</name>
<name sortKey="Liao, Zhixiang" sort="Liao, Zhixiang" uniqKey="Liao Z" first="Zhixiang" last="Liao">Zhixiang Liao</name>
<name sortKey="Liu, Ganqiang" sort="Liu, Ganqiang" uniqKey="Liu G" first="Ganqiang" last="Liu">Ganqiang Liu</name>
<name sortKey="Liu, Ganqiang" sort="Liu, Ganqiang" uniqKey="Liu G" first="Ganqiang" last="Liu">Ganqiang Liu</name>
<name sortKey="Locascio, Joseph J" sort="Locascio, Joseph J" uniqKey="Locascio J" first="Joseph J." last="Locascio">Joseph J. Locascio</name>
<name sortKey="Marek, Ken" sort="Marek, Ken" uniqKey="Marek K" first="Ken" last="Marek">Ken Marek</name>
<name sortKey="Mejia, Nicte I" sort="Mejia, Nicte I" uniqKey="Mejia N" first="Nicte I." last="Mejia">Nicte I. Mejia</name>
<name sortKey="Oakes, David" sort="Oakes, David" uniqKey="Oakes D" first="David" last="Oakes">David Oakes</name>
<name sortKey="Scherzer, Clemens R" sort="Scherzer, Clemens R" uniqKey="Scherzer C" first="Clemens R." last="Scherzer">Clemens R. Scherzer</name>
<name sortKey="Scherzer, Clemens R" sort="Scherzer, Clemens R" uniqKey="Scherzer C" first="Clemens R." last="Scherzer">Clemens R. Scherzer</name>
<name sortKey="Scherzer, Clemens R" sort="Scherzer, Clemens R" uniqKey="Scherzer C" first="Clemens R." last="Scherzer">Clemens R. Scherzer</name>
<name sortKey="Scherzer, Clemens R" sort="Scherzer, Clemens R" uniqKey="Scherzer C" first="Clemens R." last="Scherzer">Clemens R. Scherzer</name>
<name sortKey="Scherzer, Clemens R" sort="Scherzer, Clemens R" uniqKey="Scherzer C" first="Clemens R." last="Scherzer">Clemens R. Scherzer</name>
<name sortKey="Schlossmacher, Michael G" sort="Schlossmacher, Michael G" uniqKey="Schlossmacher M" first="Michael G." last="Schlossmacher">Michael G. Schlossmacher</name>
<name sortKey="Schwarzschild, Michael A" sort="Schwarzschild, Michael A" uniqKey="Schwarzschild M" first="Michael A." last="Schwarzschild">Michael A. Schwarzschild</name>
<name sortKey="Selkoe, Dennis J" sort="Selkoe, Dennis J" uniqKey="Selkoe D" first="Dennis J." last="Selkoe">Dennis J. Selkoe</name>
<name sortKey="Selkoe, Dennis J" sort="Selkoe, Dennis J" uniqKey="Selkoe D" first="Dennis J." last="Selkoe">Dennis J. Selkoe</name>
<name sortKey="Shivraj Sohur, U" sort="Shivraj Sohur, U" uniqKey="Shivraj Sohur U" first="U." last="Shivraj Sohur">U. Shivraj Sohur</name>
<name sortKey="Shoulson, Ira" sort="Shoulson, Ira" uniqKey="Shoulson I" first="Ira" last="Shoulson">Ira Shoulson</name>
<name sortKey="Sudarsky, Lewis R" sort="Sudarsky, Lewis R" uniqKey="Sudarsky L" first="Lewis R." last="Sudarsky">Lewis R. Sudarsky</name>
<name sortKey="Trisini Lipsanopoulos, Ana" sort="Trisini Lipsanopoulos, Ana" uniqKey="Trisini Lipsanopoulos A" first="Ana" last="Trisini-Lipsanopoulos">Ana Trisini-Lipsanopoulos</name>
<name sortKey="Trisini Lipsanopoulos, Ana" sort="Trisini Lipsanopoulos, Ana" uniqKey="Trisini Lipsanopoulos A" first="Ana" last="Trisini-Lipsanopoulos">Ana Trisini-Lipsanopoulos</name>
<name sortKey="Trisini Lipsanopoulos, Ana" sort="Trisini Lipsanopoulos, Ana" uniqKey="Trisini Lipsanopoulos A" first="Ana" last="Trisini-Lipsanopoulos">Ana Trisini-Lipsanopoulos</name>
<name sortKey="Wills, Anne Marie" sort="Wills, Anne Marie" uniqKey="Wills A" first="Anne-Marie" last="Wills">Anne-Marie Wills</name>
<name sortKey="Wills, Anne Marie" sort="Wills, Anne Marie" uniqKey="Wills A" first="Anne-Marie" last="Wills">Anne-Marie Wills</name>
<name sortKey="Zheng, Bin" sort="Zheng, Bin" uniqKey="Zheng B" first="Bin" last="Zheng">Bin Zheng</name>
<name sortKey="Zheng, Bin" sort="Zheng, Bin" uniqKey="Zheng B" first="Bin" last="Zheng">Bin Zheng</name>
</country>
<country name="Canada">
<noRegion>
<name sortKey="Ravina, Bernard" sort="Ravina, Bernard" uniqKey="Ravina B" first="Bernard" last="Ravina">Bernard Ravina</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

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