Evidence map›Paper›PMID 30146727›Full record

ArticleAnnals of neurology2018

A comprehensive analysis of SNCA-related genetic risk in sporadic parkinson disease.

Lasse Pihlstrøm, Cornelis Blauwendraat, Chiara Cappelletti, Victoria Berge-Seidl, Margrete Langmyhr, Sandra Pilar Henriksen, Wilma D J van de Berg, J Raphael Gibbs, Mark R Cookson, International Parkinson Disease Genomics Consortium and 4 more

Open access · greenAbstract read
In one paragraph

Article in Annals of neurology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed, 3 pooled it
5.6field-weighted citation impact, top 4% of its field
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

50 citing papers in PubMed, 3 syntheses or guidelines pooled it, 66 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Parkinson DiseaseNeurology. Genetics · 2025
    Article
  10. Genetic Sketch of Parkinson's Disease in India.Annals of Indian Academy of Neurology · 2025
    Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Association of synuclein alpha (Quantitative imaging in medicine and surgery · 2024
    Article
  16. Article
  17. Common genetic risk for Parkinson's disease and dysfunction of the endo-lysosomal system.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024
    Review
  18. Article
  19. Article
  20. Parkinson's Disease is Predominantly a Genetic Disease.Journal of Parkinson's disease · 2024
    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

14 authors at 3 institutions in 3 countries.

Lasse PihlstrømDepartment of Neurology, Oslo University Hospital, Oslo, Norway.
Cornelis BlauwendraatNeurodegenerative Diseases Research Unit, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD.
Chiara CappellettiDepartment of Neurology, Oslo University Hospital, Oslo, Norway.
Victoria Berge-SeidlDepartment of Neurology, Oslo University Hospital, Oslo, Norway.
Margrete LangmyhrDepartment of Neurology, Oslo University Hospital, Oslo, Norway.
Sandra Pilar HenriksenDepartment of Neurology, Oslo University Hospital, Oslo, Norway.
Wilma D J van de BergDepartment of Anatomy and Neurosciences, Clinical Neuroanatomy Section, Amsterdam Neuroscience, VU Medical Center, Amsterdam, the Netherlands.
J Raphael GibbsLaboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD.
Mark R CooksonLaboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD.
International Parkinson Disease Genomics Consortium
North American Brain Expression Consortium
Andrew B SingletonLaboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD.
Mike A NallsLaboratory of Neurogenetics, National Institute on Aging, National Institutes of Health, Bethesda, MD.
Mathias ToftDepartment of Neurology, Oslo University Hospital, Oslo, Norway.ORCID 0000-0002-6723-6865
Oslo University Hospital · NONational Institutes of Health · USAmsterdam Neuroscience · NL

Funding

Assessment of Candidate Loci in Neurological diseasesZIAAG000957 · NIA · NATIONAL INSTITUTE ON AGING · PI SINGLETON, ANDREW · 2009 to 2024
$12.2M
Gene expression in the human brainZIAAG000947 · NIA · NATIONAL INSTITUTE ON AGING · PI COOKSON, MARK · 2009 to 2025
$7.2M
Intramural NIH HHS Z99 AG999999
6 · The paper itself

Abstract

objectiveThe goal of this study was to refine our understanding of disease risk attributable to common genetic variation in SNCA, a major locus in Parkinson disease, with potential implications for clinical trials targeting α-synuclein. We aimed to dissect the multiple independent association signals, stratify individuals by SNCA-specific risk profiles, and explore expression quantitative trait loci.

methodsWe analyzed participant-level data from 12,503 patients and 12,502 controls, optimizing a risk model and assessing SNCA-specific risk scores and haplotypes as predictors of individual risk. We also explored hypotheses about functional mechanisms and correlated risk variants to gene expression in human brain and protein levels in cerebrospinal fluid.

resultsWe report and replicate a novel, third independent association signal at genome-wide significance level downstream of SNCA (rs2870004, p = 3.0*10

interpretationThe SNCA locus harbors a minimum of 3 independent association signals for Parkinson disease. We demonstrate a fine-grained stratification of α-synuclein-related genetic burden in individual patients of potential future clinical relevance. Further efforts to pinpoint the functional mechanisms are warranted, including studies of the likely causal top variant rs356182 and its role in regulating levels of specific SNCA mRNA transcript variants. Ann Neurol 2018;83:117-129.

Indexed as

AgedAged, 80 and overalpha-SynucleinFemaleGenetic Association StudiesGenetic Predisposition to DiseaseHumansMaleMiddle AgedParkinson DiseasePolymorphism, Single NucleotideRegression Analysisalpha-SynucleinSNCA protein, human

Identifiers

PMID30146727
PMCPMC6192521
OpenAlexW2888882143

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.