Evidence map›Paper›PMID 34645914›Full record

Trial reportScientific reports2021

Cerebrospinal fluid markers for synaptic function and Alzheimer type changes in late life depression.

Nikias Siafarikas, Bjørn-Eivind Kirsebom, Deepak P Srivastava, Cecilia M Eriksson, Eirik Auning, Erik Hessen, Geir Selbaek, Kaj Blennow, Dag Aarsland, Tormod Fladby

Erratum issuedOpen access · goldAbstract readClinical TrialComparative StudyMulticenter Study
In one paragraph

Trial report in Scientific reports, 2021. 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 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 7% 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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Interpreting p-tau217 on the ward: frailty and plasma biomarkers in acutely admitted older adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  3. Article
  4. Article
  5. Observational
  6. Repeated plasma p-tau217 measurements to monitor clinical progression heterogeneity.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Review
  14. Article
  15. Observational
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 6 institutions in 3 countries.

Nikias SiafarikasDepartment of Geriatric Psychiatry, Akershus University Hospital, Sykehusveien 25, 1478, Lørenskog, Norway. nikias.siafarikas@googlemail.com.
Bjørn-Eivind KirsebomDepartment of Neurology, University Hospital of North Norway, Tromsø, Norway.
Deepak P SrivastavaDepartment of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 9NU, UK.
Cecilia M ErikssonDepartment of Geriatric Psychiatry, Akershus University Hospital, Sykehusveien 25, 1478, Lørenskog, Norway.
Eirik AuningDepartment of Geriatric Psychiatry, Akershus University Hospital, Sykehusveien 25, 1478, Lørenskog, Norway.
Erik HessenDepartment of Neurology, Akershus University Hospital, Lørenskog, Norway.
Geir SelbaekFaculty of Medicine, University of Oslo, Oslo, Norway.
Kaj BlennowDepartment of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
Dag AarslandDepartment of Old Age Psychiatry, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, SE5 8AF, UK.
Tormod FladbyDepartment of Neurology, Akershus University Hospital, Lørenskog, Norway.
Akershus University Hospital · NOKing's College London · GBSykehuset i Vestfold · NOUniversity Hospital of North Norway · NOUniversity of Gothenburg · SEUniversity of Oslo · NO

Funding

Medical Research Council MR/L021064/1Medical Research Council MR/N026063/1Medical Research Council MR/W006251/1
6 · The paper itself

Abstract

To explore markers for synaptic function and Alzheimer disease (AD) pathology in late life depression (LLD), predementia AD and normal controls (NC). A cross-sectional study to compare cerebrospinal fluid (CSF) levels of neurogranin (Ng), Beta-site amyloid-precursor-protein cleaving enzyme1 (BACE1), Ng/BACE1 ratio and Amyloid-β 42/40 ratio, phosphorylated-tau and total-tau in LLD with (LLD AD) or without (LLD NoAD) AD pathology, predementia AD and normal controls (NC). We included 145 participants (NC = 41; predementia AD = 66 and LLD = 38). LLD comprised LLD AD (n = 16), LLD NoAD (n = 19), LLD with non-AD typical changes (n = 3, excluded). LLD AD (p

Indexed as

AgedAlzheimer DiseaseAmyloid beta-PeptidesAmyloid Precursor Protein SecretasesAspartic Acid EndopeptidasesBiomarkersCross-Sectional StudiesDepressionHumansMiddle AgedNeurograninPeptide FragmentsSynapsesAmyloid beta-Peptidesamyloid beta-protein (1-40)amyloid beta-protein (1-42)Amyloid Precursor Protein SecretasesAspartic Acid EndopeptidasesBACE1 protein, humanBiomarkersNeurograninNRGN protein, humanPeptide Fragments

Identifiers

PMID34645914
PMCPMC8514484
OpenAlexW3206930172

What OpenQuestion holds

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Read underepoch 390

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.