Evidence map›Paper›PMID 25227208›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2015

Lower plasma apolipoprotein A1 levels are found in Parkinson's disease and associate with apolipoprotein A1 genotype.

Christine R Swanson, Katherine Li, Travis L Unger, Michael D Gallagher, Vivianna M Van Deerlin, Pinky Agarwal, James Leverenz, John Roberts, Ali Samii, Rachel Goldmann Gross and 6 more

Abstract readMulticenter Study
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed, 2 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

28 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Context-Dependent Associations of theInternational journal of molecular sciences · 2026
    Pooled it
  2. Plasma apolipoprotein A1 associates with age at onset and motor severity in early Parkinson's disease patients.Movement disorders : official journal of the Movement Disorder Society · 2015
    Pooled it
  3. Trial
  4. Article
  5. Review
  6. Apolipoprotein A (ApoA) in Neurological Disorders: Connections and Insights.International journal of molecular sciences · 2025
    Review
  7. Review
  8. Review
  9. Lipoprotein Particles in Cerebrospinal Fluid.Arteriosclerosis, thrombosis, and vascular biology · 2024
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. α-synuclein-lipoprotein interactions and elevated ApoE level in cerebrospinal fluid from Parkinson's disease patients.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  19. Review
  20. Diagnostic biomarkers for Parkinson's disease at a glance: where are we?Journal of neural transmission (Vienna, Austria : 1996) · 2018
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

16 authors.

Christine R SwansonDepartment of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Katherine LiDepartment of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Travis L UngerDepartment of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Michael D GallagherDepartment of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Vivianna M Van DeerlinDepartment of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Pinky AgarwalBooth Gardner Parkinson's Care Center, Evergreen Hospital Medical Center, Kirkland, Washington, USA.
James LeverenzCleveland Clinic Ruvo Center for Brain Health, Cleveland, Ohio, USA.
John RobertsVirginia Mason Medical Center, Seattle, Washington, USA.
Ali SamiiVA Puget Sound Health Care System and Department of Neurology, University of Washington Seattle, Seattle, Washington, USA.
Rachel Goldmann GrossDepartment of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Howard HurtigDepartment of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Jacqueline RickDepartment of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Daniel WeintraubDepartment of Psychiatry, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
John Q TrojanowskiDepartment of Pathology and Laboratory Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Cyrus ZabetianVA Puget Sound Health Care System and Department of Neurology, University of Washington Seattle, Seattle, Washington, USA.
Alice S Chen-PlotkinDepartment of Neurology, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Funding

Yale University Clinical and Translational Science Award ProgramUL1TR000142 · NCATS · YALE UNIVERSITY · PI SHERWIN, ROBERT S · 2012 to 2015
$31.8M
Project IV: "Alpha-Synuclein Strains & Diverse Synucleinopathies"P50NS053488 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI TROJANOWSKI, JOHN Q. · 2007 to 2017
$20.9M
Udall Center Director's meeting poster awardP50NS062684 · NINDS · UNIVERSITY OF WASHINGTON · PI MONTINE, THOMAS J · 2009 to 2020
$18.3M
Using Multiplex Families to map Genes that Modify Susceptibility and Age at OnsetR01NS065070 · NINDS · UNIVERSITY OF WASHINGTON · PI ZABETIAN, CYRUS P · 2009 to 2012
$2.0M
Unbiased Approaches to Novel Biomarker Discovery in Parkinson's DiseaseU01NS082134 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI CHEN-PLOTKIN, ALICE S · 2012 to 2016
$1.8M
Genetic Risk Factors for Parkinson's DiseaseI01BX000531 · VA · VA PUGET SOUND HEALTHCARE SYSTEM · PI ZABETIAN, CYRUS P · 2009 to 2013
–
BLRD VA I01 BX000531NCATS NIH HHS UL1 TR000142NINDS NIH HHS P50 NS053488NINDS NIH HHS P50 NS062684NINDS NIH HHS P50NS062684NINDS NIH HHS R01 NS065070NINDS NIH HHS U01 NS082134NINDS NIH HHS UO1 NS082134
6 · The paper itself

Abstract

The discovery of novel plasma-based biomarkers could lead to new approaches in the treatment of Parkinson's disease (PD). Here, we explore the role of plasma apolipoprotein A1 (ApoA1) as a risk marker for PD and evaluate the influence of APOA1 promoter variation on plasma ApoA1 levels. Plasma ApoA1 and the single-nucleotide polymorphism, rs670, were assayed in a discovery cohort (cohort 1) of 301 PD patients, 80 normal controls (NCs), and 165 subjects with other neurodegenerative diseases, as well as a cohort (cohort 2) of 158 PD patients from a second clinical site. Additionally, rs670 was genotyped in a third cohort of 1,494 PD and 925 NC subjects from both clinical sites. Compared to both normal and disease controls, PD patients have lower plasma ApoA1 (P < 0.001 for both comparisons). Moreover, in PD patients, plasma ApoA1 levels are correlated with genotype at the APOA1 promoter polymorphism, rs670. Specifically, lower plasma ApoA1 levels were found in rs670 major allele (G) homozygotes in both cohort 1 (P = 0.009) and in a replication cohort (cohort 2; n = 158 PD patients; P = 0.024). Finally, evaluating rs670 genotype frequencies in 1,930 PD cases versus 997 NCs, the rs670 GG genotype shows a trend toward association (odds ratio: 1.1; P = 0.10) with PD. Our results are compatible with a model whereby circulating ApoA1 levels may be useful in risk-stratifying subjects for the development of PD, with higher ApoA1 levels suggesting relative protection. Future studies evaluating modulation of ApoA1 as a novel therapeutic strategy in PD are warranted. © 2014 International Parkinson and Movement Disorder Society.

Indexed as

GenotypeAgedAllelesApolipoprotein A-IBiomarkersCohort StudiesFemaleGene FrequencyGenetic Predisposition to DiseaseHomozygoteHumansMaleMiddle AgedOdds RatioParkinson DiseasePolymorphism, Single NucleotideAPOA1 protein, humanApolipoprotein A-IBiomarkersApoA1Apolipoprotein A1biomarkergenotypeParkinson's disease

Identifiers

PMID25227208
PMCPMC4362847

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.