Evidence map›Paper›PMID 24582638›Full record

ArticleNeurobiology of aging2014

Cognitive and neural signatures of the APOE E4 allele in mid-aged adults.

Simon Evans, Nicholas G Dowell, Naji Tabet, Paul S Tofts, Sarah L King, Jennifer M Rusted

Open access · hybridAbstract read
In one paragraph

Article in Neurobiology of aging, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed, 1 pooled it
10.8field-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

46 citing papers in PubMed, 1 synthesis or guideline pooled it, 85 citations in OpenAlex.

  1. Pooled it
  2. The physiological effects of APOE genotype in healthy young/middle-aged individuals.Biological reviews of the Cambridge Philosophical Society · 2026
    Article
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  7. Differential association of cerebral blood flow and anisocytosis in APOE ε4 carriers at midlife.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
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  8. Article
  9. Article
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  14. ApoE4-positive multiple sclerosis patients are more likely to have cognitive impairment: a cross-sectional study.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2022
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  16. Review
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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

6 authors at 2 institutions in 1 country.

Simon EvansSchool of Psychology, University of Sussex, Brighton, UK.
Nicholas G DowellBrighton and Sussex Medical School (BSMS), Clinical Imaging Sciences Centre, Brighton, UK.
Naji TabetBrighton and Sussex Medical School (BSMS), Institute of Postgraduate Medicine, Brighton, UK.
Paul S ToftsBrighton and Sussex Medical School (BSMS), Clinical Imaging Sciences Centre, Brighton, UK.
Sarah L KingSchool of Psychology, University of Sussex, Brighton, UK.
Jennifer M RustedSchool of Psychology, University of Sussex, Brighton, UK. Electronic address: J.Rusted@sussex.ac.uk.
Brighton and Sussex Medical School · GBUniversity of Sussex · GB

Funding

Biotechnology and Biological Sciences Research Council BB/H000518/1
6 · The paper itself

Abstract

The apolipoprotein E (APOE) e4 allele is strongly associated with increased risk of cognitive impairments in older adulthood. There is also a possible link to enhanced cognitive performance in younger adults, and the APOE e4 allele may constitute an example of antagonistic pleiotropy. The aim of this work was to investigate the cognitive and neural (functional) effects of the APOE e4 allele during mid-age (45-55 years), where a transition toward cognitive deficit might be expected. APOE e4 carriers (e4+) were compared with non-e4 carriers (e4-) on tasks of sustained and covert attention and prospective memory, and functional magnetic resonance imaging data acquired. Performance by e4+ was equivalent or better than e4- on all 3 tasks, although performance benefits were less pronounced than in youth. Neurally, e4+ showed less task-related recruitment of extrastriate and parietal areas. This became more evident when neural activation data were compared with that of young adults acquired in a parallel study. As expected, mid-age participants showed more diffuse neural activation. Notable was the fact that e4+ showed a relative inability to recruit parietal regions as they aged. This was coupled with a tendency to show greater recruitment of frontal regions, and underactivation of extrastriate visual regions. Thus, mid-age e4+ show a pattern of neural recruitment usually seen later in life, possibly reflecting the source of an accelerated aging profile that describes the e4 genotype.

Indexed as

CognitionAdolescentAdultAgingAllelesApolipoprotein E4AttentionCognition DisordersFemaleFrontal LobeGenetic Association StudiesGenotypeHeterozygoteHumansMagnetic Resonance ImagingMaleApolipoprotein E4AgingAlzheimer's diseaseAPOEAttentionImagingMemory

Identifiers

PMID24582638
PMCPMC4001126
OpenAlexW2093891993

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.