Evidence map›Paper›PMID 29324989›Full record

ArticleBrain : a journal of neurology2018

Synaptic markers of cognitive decline in neurodegenerative diseases: a proteomic approach.

Erika Bereczki, Rui M Branca, Paul T Francis, Joana B Pereira, Jean-Ha Baek, Tibor Hortobágyi, Bengt Winblad, Clive Ballard, Janne Lehtiö, Dag Aarsland

Erratum issuedOpen access · greenAbstract read
In one paragraph

Article in Brain : a journal of neurology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 123 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
123citing papers in PubMed, 6 pooled it
12.4field-weighted citation impact, top 1% 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

123 citing papers in PubMed, 6 syntheses or guidelines pooled it, 227 citations in OpenAlex.

  1. Pooled it
  2. A Meta-Analysis on Presynaptic Changes in Alzheimer's Disease.Journal of Alzheimer's disease : JAD · 2024
    Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Trial
  8. Article
  9. Article
  10. Review
  11. Article
  12. Frontiers in cellular neuroscience · 2026
    Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

63 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 4 institutions in 4 countries.

Erika BereczkiDepartment of Neurobiology, Care Sciences and Society, Center for Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, Novum, Stockholm, Sweden.
Rui M BrancaDepartment of Oncology-Pathology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden.
Paul T FrancisKing's College London, Wolfson Centre for Age-Related Diseases, London SE1 1UL, UK.
Joana B PereiraDepartment of Neurobiology, Care Sciences and Society, Center for Alzheimer Research, Division of Clinical Geriatrics, Karolinska Institutet, Novum, 14186 Stockholm, Sweden.
Jean-Ha BaekDepartment of Neurobiology, Care Sciences and Society, Center for Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, Novum, Stockholm, Sweden.
Tibor HortobágyiMTA-DE Cerebrovascular and Neurodegenerative Research Group, University of Debrecen, Debrecen, Hungary.
Bengt WinbladDepartment of Neurobiology, Care Sciences and Society, Center for Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, Novum, Stockholm, Sweden.
Clive BallardDepartment of Oncology-Pathology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden.
Janne LehtiöDepartment of Oncology-Pathology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden.
Dag AarslandDepartment of Neurobiology, Care Sciences and Society, Center for Alzheimer Research, Division of Neurogeriatrics, Karolinska Institutet, Novum, Stockholm, Sweden.
Karolinska Institutet · SEScience for Life Laboratory · SEKing's College London · GBUniversity of Debrecen · HU

Funding

Medical Research Council G0400074Medical Research Council G0502157Medical Research Council G0900652Medical Research Council G1100540Medical Research Council MR/L022656/1
6 · The paper itself

Abstract

See Attems and Jellinger (doi:10.1093/brain/awx360) for a scientific commentary on this article.Cognitive changes occurring throughout the pathogenesis of neurodegenerative diseases are directly linked to synaptic loss. We used in-depth proteomics to compare 32 post-mortem human brains in the prefrontal cortex of prospectively followed patients with Alzheimer's disease, Parkinson's disease with dementia, dementia with Lewy bodies and older adults without dementia. In total, we identified 10 325 proteins, 851 of which were synaptic proteins. Levels of 25 synaptic proteins were significantly altered in the various dementia groups. Significant loss of SNAP47, GAP43, SYBU (syntabulin), LRFN2, SV2C, SYT2 (synaptotagmin 2), GRIA3 and GRIA4 were further validated on a larger cohort comprised of 92 brain samples using ELISA or western blot. Cognitive impairment before death and rate of cognitive decline significantly correlated with loss of SNAP47, SYBU, LRFN2, SV2C and GRIA3 proteins. Besides differentiating Parkinson's disease dementia, dementia with Lewy bodies, and Alzheimer's disease from controls with high sensitivity and specificity, synaptic proteins also reliably discriminated Parkinson's disease dementia from Alzheimer's disease patients. Our results suggest that these particular synaptic proteins have an important predictive and discriminative molecular fingerprint in neurodegenerative diseases and could be a potential target for early disease intervention.

Indexed as

AgedAged, 80 and overalpha-SynucleinBrainCognition DisordersFemaleGene Expression RegulationHumansIntracellular Signaling Peptides and ProteinsMaleMembrane ProteinsMicrotubule-Associated ProteinsNerve Tissue ProteinsNeurodegenerative DiseasesNeurologic ExaminationNeuropsychological Testsalpha-SynucleinIntracellular Signaling Peptides and ProteinsMembrane ProteinsMicrotubule-Associated ProteinsNerve Tissue ProteinsSYBU protein, humanAlzheimer’s diseasecognitive impairmentLewy body dementiasmass spectrometrysynaptic proteins

Identifiers

PMID29324989
PMCPMC5837272
OpenAlexW2782564735

What OpenQuestion holds

Textmetadata
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.