Evidence map›Paper›PMID 38477490›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2024

APOE ε4 is associated with decreased synaptic density in cognitively impaired participants.

Kun He, Binyin Li, Jie Wang, Ying Wang, Zhiwen You, Xing Chen, Haijuan Chen, Junpeng Li, Qi Huang, Qihao Guo and 6 more

Open access · hybridAbstract read
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
7.8field-weighted citation impact, top 2% 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

19 citing papers in PubMed, 24 citations in OpenAlex.

  1. Review
  2. Impaired glymphatic function is associated with synaptic loss in cognitive impairment.European journal of nuclear medicine and molecular imaging · 2026
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  3. Review
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  5. Article
  6. Article
  7. Article
  8. Spotlight on Alzheimer's disease and related dementias research in East Asia.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  9. Proteomic and metabolic profiling revealsbioRxiv : the preprint server for biology · 2025
    Article
  10. Prediction of longitudinal synaptic loss in Alzheimer's disease using tau PET and plasma biomarkers.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  11. Article
  12. Review
  13. Presynaptic terminal integrity is associated with glucose metabolism in Parkinson's disease.European journal of nuclear medicine and molecular imaging · 2025
    Article
  14. Review
  15. Article
  16. Article
  17. Review
  18. APOE ε4 is associated with decreased synaptic density in cognitively impaired participants.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  19. 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

16 authors at 6 institutions in 2 countries.

Kun HeDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.
Binyin LiDepartment of Neurology & Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Jie WangDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.
Ying WangDepartment of Gerontology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, China.
Zhiwen YouDepartment of Nuclear Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.
Xing ChenDepartment of Nuclear Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.
Haijuan ChenDepartment of Neurology & Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Junpeng LiDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.
Qi HuangDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.
Qihao GuoDepartment of Gerontology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, China.
Yiyun Henry HuangPET Center, Department of Radiology and Biomedical Imaging, Yale University School of Medicine, New Haven, USA.
Yihui GuanDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.
Kewei ChenBanner Alzheimer Institute, Arizona State University, University of Arizona and Arizona Alzheimer's Consortium, Phoenix, USA.
Jun ZhaoDepartment of Nuclear Medicine, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.
Yulei DengDepartment of Neurology & Institute of Neurology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Fang XieDepartment of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.ORCID 0000-0003-2667-281X
Fudan University · CNShanghai East Hospital · CNShanghai Jiao Tong University · CNShanghai Sixth People's Hospital · CNAlzheimer's Association · USYale University · US

Funding

Research Education ComponentP30AG072980 · NIA · BANNER HEALTH · PI ALIREZA ATRI · 2021 to 2026
$24.9M
Huashan Hospital, Fudan University 2017QD081National Key R&D Program of China 2016YFC1306305National Key R&D Program of China 2018YFE0203600National Natural Science Foundation of China 81801752National Natural Science Foundation of China 82171473National Natural Science Foundation of China 82201583National Natural Science Foundation of China 82271441NIA NIH HHS P30 AG072980Shanghai Municipal Key Clinical Specialty 3030247006Shanghai Municipal Science and Technology Major Project 2018SHZDZX01STI2030-Major Projects 2022ZD0213800
6 · The paper itself

Abstract

introductionWe aimed to investigate the effect of apolipoprotein E4 (APOE) ε4 on synaptic density in cognitively impaired (CI) participants.

methodsOne hundred ten CI participants underwent amyloid positron emission tomography (PET) with

resultsCompared with non-carriers, APOE ε4 allele carriers exhibited significant synaptic loss in the medial temporal lobe. Amyloid beta (Aβ) and tau pathology mediated the effects of APOE ε4 on synaptic density to different extents. The associations between synaptic density and tau pathology were regulated by the APOE ε4 genotype. DISCUSSION: The APOE ε4 allele was associated with decreased synaptic density in CI individuals and may be driven by AD biomarkers.

Indexed as

Amyloid beta-PeptidesApolipoprotein E4Cognitive DysfunctionPositron-Emission TomographySynapsesAgedAged, 80 and overAllelesAlzheimer DiseaseBiomarkersBrainFemaleGenotypeHumansMaleMiddle AgedAmyloid beta-PeptidesApolipoprotein E4Biomarkerstau ProteinsAlzheimer's disease biomarkerAPOE ε4female riskhippocampal subfieldssynaptic density

Identifiers

PMID38477490
PMCPMC11095422
OpenAlexW4392741428

What Socratic 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 Socratic graph.