Evidence map›Paper›PMID 33088920›Full record

ArticleBrain and neuroscience advances

Effect of apolipoprotein E polymorphism on cognition and brain in the Cambridge Centre for Ageing and Neuroscience cohort.

Richard N Henson, Sana Suri, Ethan Knights, James B Rowe, Rogier A Kievit, Donald M Lyall, Dennis Chan, Else Eising, Simon E Fisher

Open access · goldAbstract read
In one paragraph

Article in Brain and neuroscience advances. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.7field-weighted citation impact, top 8% 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

14 citing papers in PubMed, 27 citations in OpenAlex.

  1. Review
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  5. APOE4 expression confers a mild, persistent reduction in neurovascular function in the visual cortex and hippocampus of awake mice.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2023
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  14. Lifting the lid on impact and peer review.Brain and neuroscience advances
    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

9 authors at 6 institutions in 2 countries.

Richard N HensonMRC Cognition & Brain Sciences Unit, University of Cambridge, Cambridge, UK.ORCID https://orcid.org/0000-0002-0712-2639
Sana SuriDepartment of Psychiatry, Warneford Hospital, University of Oxford, Oxford, UK.
Ethan KnightsMRC Cognition & Brain Sciences Unit, University of Cambridge, Cambridge, UK.
James B RoweMRC Cognition & Brain Sciences Unit, University of Cambridge, Cambridge, UK.
Rogier A KievitMRC Cognition & Brain Sciences Unit, University of Cambridge, Cambridge, UK.
Donald M LyallInstitute of Health and Wellbeing, University of Glasgow, Glasgow, UK.
Dennis ChanInstitute of Cognitive Neuroscience, University College London, London, UK.
Else EisingLanguage and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands.
Simon E FisherLanguage and Genetics Department, Max Planck Institute for Psycholinguistics, Nijmegen, The Netherlands.
MRC Cognition and Brain Sciences Unit · GBMax Planck Institute for Psycholinguistics · NLRadboud University Nijmegen · NLUniversity College London · GBUniversity of Glasgow · GBWarneford Hospital · GB

Funding

Biotechnology and Biological Sciences Research Council BB/H008217/1Medical Research Council MC_U105597119Medical Research Council MC_UU_00005/12Medical Research Council MC_UU_00005/8Wellcome Trust
6 · The paper itself

Abstract

Polymorphisms in the apolipoprotein E (APOE) gene have been associated with individual differences in cognition, brain structure and brain function. For example, the ε4 allele has been associated with cognitive and brain impairment in old age and increased risk of dementia, while the ε2 allele has been claimed to be neuroprotective. According to the 'antagonistic pleiotropy' hypothesis, these polymorphisms have different effects across the lifespan, with ε4, for example, postulated to confer benefits on cognitive and brain functions earlier in life. In this stage 2 of the Registered Report - https://osf.io/bufc4, we report the results from the cognitive and brain measures in the Cambridge Centre for Ageing and Neuroscience cohort (www.cam-can.org). We investigated the antagonistic pleiotropy hypothesis by testing for allele-by-age interactions in approximately 600 people across the adult lifespan (18-88 years), on six outcome variables related to cognition, brain structure and brain function (namely, fluid intelligence, verbal memory, hippocampal grey-matter volume, mean diffusion within white matter and resting-state connectivity measured by both functional magnetic resonance imaging and magnetoencephalography). We found no evidence to support the antagonistic pleiotropy hypothesis. Indeed, Bayes factors supported the null hypothesis in all cases, except for the (linear) interaction between age and possession of the ε4 allele on fluid intelligence, for which the evidence for faster decline in older ages was ambiguous. Overall, these pre-registered analyses question the antagonistic pleiotropy of APOE polymorphisms, at least in healthy adults.

Indexed as

ageingapolipoprotein EbrainCognitionlifespan

Identifiers

PMID33088920
PMCPMC7545750
OpenAlexW3091867826

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.