Evidence map›Paper›PMID 17389798›Full record

ArticleDementia and geriatric cognitive disorders2007

Differential cross-sectional and longitudinal impact of APOE genotype on hippocampal volumes in nondemented older adults.

Amy J Jak, Wes S Houston, Bonnie J Nagel, Jody Corey-Bloom, Mark W Bondi

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Dementia and geriatric cognitive disorders, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.

0numbers the graph read from it
0cells of the map it votes in
62citing papers in PubMed
6.1field-weighted citation impact, top 3% 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

62 citing papers in PubMed, 104 citations in OpenAlex.

  1. Alcohol use andAlzheimer's & dementia. Behavior & socioeconomics of aging · 2026
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  19. Hippocampal atrophy varies by neuropsychologically defined MCI among men in their 50s.The American journal of geriatric psychiatry : official journal of the American Association for Geriatric Psychiatry · 2015
    Article
  20. Article

2 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 1 country.

Amy J JakVeteran's Medical Research Foundation, San Diego, CA 92161, USA.
Wes S Houston
Bonnie J Nagel
Jody Corey-Bloom
Mark W Bondi
University of California, San Diego · USOregon Health & Science University · US

Funding

VIRUS-INDUCED BRAIN PATHOLOGYP50AG005131 · NIA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GALASKO, DOUGLAS R · 1985 to 2018
$55.4M
Cognitive Abilities of At-Risk Elderly for DementiaR01AG012674 · NIA · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI BONDI, MARK W · 2001 to 2012
$2.7M
NIA NIH HHS P50 AG005131NIA NIH HHS P50 AG05131NIA NIH HHS R01 AG012674NIA NIH HHS R01 AG12674
6 · The paper itself

Abstract

BACKGROUND/

aimsBecause of conflicting findings across studies, we sought to better determine the relationship between apolipoprotein E (APOE) genotype, hippocampal volume, and cognitive performance in nondemented older adults.

methodsTwo groups ofolder adults, as determined by their APOE epsilon4 allele status, received structural MRI and comprehensive neuropsychological testing on two occasions separated on average by 17 months.

resultsCross-sectional comparisons by APOE group revealed no differences in hippocampal volumes, although longitudinal percent reduction in hippocampal volume was significantly greater for those possessing the APOE epsilon4 allele. Relationship between hippocampal volumes and memory performance was strongly impacted by diagnosis of mild cognitive impairment.

conclusionsAPOE epsilon4 allele appears to significantly impact rate of volume loss over time in the hippocampus in nondemented older adults, and detailed cognitive characterization of the sample is necessary to reliably interpret the relationship between cognition and brain structure.

Indexed as

AgedAged, 80 and overAnalysis of VarianceApolipoprotein E4BrainCognitionCross-Sectional StudiesData Interpretation, StatisticalFemaleHippocampusHumansLongitudinal StudiesMagnetic Resonance ImagingMaleMiddle AgedNeuropsychological TestsApolipoprotein E4

Identifiers

PMID17389798
PMCPMC2084479
OpenAlexW1981832748

What OpenQuestion holds

Textmetadata
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.