Evidence map›Paper›PMID 29451880›Full record

ArticlePloS one2018

Apolipoprotein E genotype does not moderate the associations of depressive symptoms, neuroticism and allostatic load with cognitive ability and cognitive aging in the Lothian Birth Cohort 1936.

Zander Crook, Tom Booth, Simon R Cox, Janie Corley, Dominika Dykiert, Paul Redmond, Alison Pattie, Adele M Taylor, Sarah E Harris, John M Starr and 1 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
0.5field-weighted citation impact, top 35% 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

12 citing papers in PubMed, 3 syntheses or guidelines pooled it, 17 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Review
  6. Unraveling the brain-joint axis: genetic, transcriptomic, and cohort insights from neuroticism to osteoarthritis.Mammalian genome : official journal of the International Mammalian Genome Society · 2025
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  9. Association of neuroticism with incident dementia, neuroimaging outcomes, and cognitive function.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  10. The Association Between Cardiometabolic Risk and Cognitive Function Among Older Americans and Chinese.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024
    Article
  11. Article
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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

11 authors at 3 institutions in 1 country.

Zander CrookDepartment of Psychology, The University of Edinburgh, Edinburgh, United Kingdom.ORCID 0000-0002-4454-3205
Tom BoothDepartment of Psychology, The University of Edinburgh, Edinburgh, United Kingdom.
Simon R CoxDepartment of Psychology, The University of Edinburgh, Edinburgh, United Kingdom.
Janie CorleyDepartment of Psychology, The University of Edinburgh, Edinburgh, United Kingdom.
Dominika DykiertDepartment of Psychology, The University of Edinburgh, Edinburgh, United Kingdom.
Paul RedmondDepartment of Psychology, The University of Edinburgh, Edinburgh, United Kingdom.
Alison PattieDepartment of Psychology, The University of Edinburgh, Edinburgh, United Kingdom.
Adele M TaylorDepartment of Psychology, The University of Edinburgh, Edinburgh, United Kingdom.
Sarah E HarrisCentre for Cognitive Ageing and Cognitive Epidemiology, Department of Psychology, The University of Edinburgh, Edinburgh, United Kingdom.
John M StarrCentre for Cognitive Ageing and Cognitive Epidemiology, Department of Psychology, The University of Edinburgh, Edinburgh, United Kingdom.
Ian J DearyDepartment of Psychology, The University of Edinburgh, Edinburgh, United Kingdom.
University of Edinburgh · GBAlzheimer Scotland · GBInstitute of Genetics and Cancer · GB

Funding

Medical Research Council G0700704Medical Research Council G0701120Medical Research Council G1001245Medical Research Council MR/K026992/1Medical Research Council MR/M013111/1Medical Research Council MR/R024065/1
6 · The paper itself

Abstract

objectivesIn this replication-and-extension study, we tested whether depressive symptoms, neuroticism, and allostatic load (multisystem physiological dysregulation) were related to lower baseline cognitive ability and greater subsequent cognitive decline in older adults, and whether these relationships were moderated by the E4 allele of the apolipoprotein E (APOE) gene. We also tested whether allostatic load mediated the relationships between neuroticism and cognitive outcomes.

methodsWe used data from the Lothian Birth Cohort 1936 (n at Waves 1-3: 1,028 [M age = 69.5 y]; 820 [M duration since Wave 1 = 2.98 y]; 659 [M duration since Wave 1 = 6.74 y]). We fitted latent growth curve models of general cognitive ability (modeled using five cognitive tests) with groups of APOE E4 non-carriers and carriers. In separate models, depressive symptoms, neuroticism, and allostatic load predicted baseline cognitive ability and subsequent cognitive decline. In addition, models tested whether allostatic load mediated relationships between neuroticism and cognitive outcomes.

resultsBaseline cognitive ability had small-to-moderate negative associations with depressive symptoms (β range = -0.20 to -0.17), neuroticism (β range = -0.27 to -0.23), and allostatic load (β range = -0.11 to 0.09). Greater cognitive decline was linked to baseline allostatic load (β range = -0.98 to -0.83) and depressive symptoms (β range = -1.00 to -0.88). However, APOE E4 allele possession did not moderate the relationships of depressive symptoms, neuroticism and allostatic load with cognitive ability and cognitive decline. Additionally, the associations of neuroticism with cognitive ability and cognitive decline were not mediated through allostatic load.

conclusionsOur results suggest that APOE E4 status does not moderate the relationships of depressive symptoms, neuroticism, and allostatic load with cognitive ability and cognitive decline in healthy older adults. The most notable positive finding in the current research was the strong association between allostatic load and cognitive decline.

Indexed as

Cognitive AgingNeuroticismAgedApolipoproteins ECohort StudiesDepressionFemaleHumansMaleApolipoproteins E

Identifiers

PMID29451880
PMCPMC5815580
OpenAlexW2792201723

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.