Evidence map›Paper›PMID 25670333›Full record

ArticleNeurobiology of aging2015

Apolipoprotein E ε4 genotype and the temporal relationship between depression and dementia.

Ida K Karlsson, Anna M Bennet, Alexander Ploner, Therese M-L Andersson, Chandra A Reynolds, Margaret Gatz, Nancy L Pedersen

Abstract read
In one paragraph

Article in Neurobiology of aging, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

16 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Neuromodulation and cognition in late-life depression.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    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

7 authors.

Ida K KarlssonDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Anna M BennetDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Alexander PlonerDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Therese M-L AnderssonDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
Chandra A ReynoldsDepartment of Psychology, University of California-Riverside, Riverside, CA, USA.
Margaret GatzDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Department of Psychology, University of Southern California, Los Angeles, CA, USA.
Nancy L PedersenDepartment of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden; Department of Psychology, University of Southern California, Los Angeles, CA, USA. Electronic address: Nancy.Pedersen@ki.se.

Funding

GENETIC &ENVIRONMENTAL INFLUENCES--BIOBEHAVIORAL AGINGR01AG010175 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI PEDERSEN, NANCY L · 1992 to 2006
$2.8M
DEMENTIA IN TWINSR01AG008724 · NIA · UNIVERSITY OF SOUTHERN CALIFORNIA · PI GATZ, MARGARET · 1990 to 2002
$1.4M
Cholesterol metabolism pathway: Cognitive change and Alzheimer's disease riskR01AG028555 · NIA · UNIVERSITY OF CALIFORNIA RIVERSIDE · PI REYNOLDS, CHANDRA A · 2007 to 2010
$1.1M
ORIGINS OF VARIANCE IN THE OLD-OLD--OCTOGENARIAN TWINSR37AG008861 · NIA · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI MCCLEARN, GERALD E · 1993 to 2002
$832k
GENETIC AND ENVIRONMENTAL INFLUENCES IN BEHAVIORAL AGINGR01AG004563 · NIA · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI MCCLEARN, GERALD E · 1985 to 1988
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ORIGINS OF VARIANCE IN THE OLD-OLD: OCTOGENARIAN TWINSR01AG008861 · NIA · PENNSYLVANIA STATE UNIVERSITY-UNIV PARK · PI MCCLEARN, GERALD E · 1990 to 1993
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NIA NIH HHS AG028555NIA NIH HHS AG04563NIA NIH HHS AG08724NIA NIH HHS AG08861NIA NIH HHS AG10175NIA NIH HHS R01 AG008724NIA NIH HHS R01 AG010175NIA NIH HHS R01 AG028555NIA NIH HHS R37 AG008861
6 · The paper itself

Abstract

To investigate how apolipoprotein E (APOE) affects the temporal relationship between depression and dementia, we conducted a nested case-control study with longitudinal depression and dementia evaluations from several population studies by using 804 dementia cases and 1600 matched controls, totaling 1519 unique individuals. Depression within 10 years of onset of dementia was strongly associated with dementia diagnosis regardless of APOE status (incidence rate ratio [IRR] 5.25, 95% confidence interval [95% CI] 3.32-8.31 for ε4 carriers, IRR 4.40, 95%CI 3.23-5.99 for noncarriers). However, we found a significant interaction between depression more than 10 years before the onset of dementia and APOE (p = 0.01), with depression more distal to dementia being a risk factor only in ε4 carriers (IRR 3.39, 95% CI 1.69-6.78 for carriers, IRR 1.01, 95% CI 0.60-1.70 for noncarriers). Thus, depression with onset close in time to dementia onset is associated with disease irrespective of APOE genotype, whereas depression more distal to dementia onset is a risk factor only in ε4-carriers. This is the first study to show the interaction between APOE and depression to be dependent on timing of depression onset.

Indexed as

Genetic Association StudiesGenotypeAgedAged, 80 and overApolipoprotein E4Case-Control StudiesDementiaDepressionFemaleHeterozygoteHumansLongitudinal StudiesMaleRisk FactorsTime FactorsApolipoprotein E4Alzheimer diseaseApolipoprotein EDementiaDepression

Identifiers

PMID25670333
PMCPMC4380668

What OpenQuestion holds

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Registered trials

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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.