Evidence map›Paper›PMID 32808727›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2020

APOE and dementia - resequencing and genotyping in 105,597 individuals.

Katrine L Rasmussen, Anne Tybjaerg-Hansen, Børge G Nordestgaard, Ruth Frikke-Schmidt

Open access · hybridAbstract read
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
6.7field-weighted citation impact, top 2% 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

27 citing papers in PubMed, 62 citations in OpenAlex.

  1. Review
  2. Apolipoprotein E Polymorphism and Reproductive Patterns Among Postreproductive Women.American journal of human biology : the official journal of the Human Biology Council · 2026
    Article
  3. Review
  4. Article
  5. Association of rareJournal of Alzheimer's disease : JAD · 2025
    Article
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  7. Review
  8. Spectrum and Prevalence of RareInternational journal of molecular sciences · 2024
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  17. Review
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  20. International journal of molecular sciences · 2022
    Article
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

4 authors at 3 institutions in 1 country.

Katrine L RasmussenDepartment of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark.
Anne Tybjaerg-HansenDepartment of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark.
Børge G NordestgaardCopenhagen General Population Study, Herlev and Gentofte Hospital, Herlev, Denmark.
Ruth Frikke-SchmidtDepartment of Clinical Biochemistry, Rigshospitalet, Copenhagen, Denmark.
Herlev Hospital · DKFrederiksberg Hospital · DKGentofte Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionThe mechanism behind the strong association between the ɛ2/ɛ3/ɛ4 apolipoprotein E gene (APOE) polymorphism and Alzheimer's disease is not well-characterized. Because low plasma levels of apoE associate with risk of dementia, genetic variants altering apoE levels in general may also associate with dementia.

methodsThe APOE gene was sequenced in 10,369 individuals, and nine amino acid-changing variants with frequencies ≥2/10,000 were further genotyped in 95,228 individuals. Plasma apoE levels were measured directly.

resultsRisk of all dementia and Alzheimer's disease (AD) increased with decreasing genetically determined apoE levels (P = 5 × 10 DISCUSSION: We found that genetically low apoE levels increase and genetically high levels decrease risk, beyond ɛ2/ɛ3/ɛ4. This underscores that dementia risk more likely relates to variants affecting levels of apoE.

Indexed as

GenotypePolymorphism, GeneticAgedAged, 80 and overAlzheimer DiseaseApolipoprotein E4Apolipoproteins EDenmarkFemaleGenotyping TechniquesHumansMaleMiddle AgedPolymerase Chain ReactionProspective StudiesApolipoprotein E4Apolipoproteins EAlzheimer's diseaseAPOEapolipoprotein Edementiageneticsrare variation

Identifiers

PMID32808727
PMCPMC7984319
OpenAlexW3078410408

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.