Evidence map›Paper›PMID 35153725›Full record

SynthesisFrontiers in aging neuroscience2021

Apolipoprotein E Genotype Moderation of the Association Between Physical Activity and Brain Health. A Systematic Review and Meta-Analysis.

Andrew M Pearce, Calum Marr, Michaela Dewar, Alan J Gow

Open access · goldAbstract readSystematic Review
In one paragraph

Synthesis in Frontiers in aging neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
1.2field-weighted citation impact, top 23% 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

8 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Article
  3. Objective physical activity and Alzheimer's disease burden in the population-based Rotterdam Study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  4. Physical activity and brain amyloid beta: A longitudinal analysis of cognitively unimpaired older adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  5. Article
  6. Article
  7. Article
  8. 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 1 institution in 1 country.

Andrew M PearceDepartment of Psychology, Centre for Applied Behavioural Sciences, Heriot-Watt University, Edinburgh, United Kingdom.
Calum MarrDepartment of Psychology, Centre for Applied Behavioural Sciences, Heriot-Watt University, Edinburgh, United Kingdom.
Michaela DewarDepartment of Psychology, Centre for Applied Behavioural Sciences, Heriot-Watt University, Edinburgh, United Kingdom.
Alan J GowDepartment of Psychology, Centre for Applied Behavioural Sciences, Heriot-Watt University, Edinburgh, United Kingdom.
Heriot-Watt University · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionPossession of one or two e4 alleles of the apolipoprotein E (

methodWe conducted a systematic review and meta-analysis of studies which assessed

resultsThirty studies were included from 4,896 papers screened. Carriers of the e4 allele gained the same benefit from physical activity as non-carriers on most outcomes. For brain activation, e4 carriers appeared to gain a greater benefit from physical activity on task-related and resting-state activation and resting-state functional connectivity compared to non-carriers. DISCUSSION: Though there is evidence suggesting physical activity may benefit e4 carriers differently compared to non-carriers, this may vary by the specific brain health outcome, perhaps limited to brain activation. Further research is required to confirm these findings and elucidate the mechanisms.

Indexed as

Alzheimer's diseaseapolipoprotein Ebrain functionbrain structurelipid profilemeta-analysisphysical activity

Identifiers

PMID35153725
PMCPMC8833849
OpenAlexW4210582918

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.