Evidence map›Paper›PMID 41954197›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2026

Synaptic density imaging in behavioral variant frontotemporal dementia: A comparison of

Arman Fesharaki-Zadeh, Salih Cayir, Waleed Ibrahim, Yanghong Yang, Jean-Dominique Gallezot, Mika Naganawa, Yanjun Wu, Takuya Toyonaga, Faranak Ebrahimian Sadabad, Ryan O'Dell and 8 more

Abstract readComparative Study
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

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

  1. Pooled it
  2. 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

18 authors.

Arman Fesharaki-ZadehDepartment of Neurology, Yale School of Medicine, New Haven, Connecticut, USA.
Salih CayirDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.ORCID 0000-0002-4071-5188
Waleed IbrahimDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.
Yanghong YangDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.
Jean-Dominique GallezotDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.
Mika NaganawaDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.
Yanjun WuDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.
Takuya ToyonagaDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.
Faranak Ebrahimian SadabadDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.
Ryan O'DellDepartment of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA.
Brian PittmanDepartment of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA.
Nabeel NabulsiDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.
Stephen StrittmatterDepartment of Neurology, Yale School of Medicine, New Haven, Connecticut, USA.
Richard E CarsonDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.
Yiyun HuangDepartment of Radiology and Biomedical Imaging, Yale School of Medicine, New Haven, Connecticut, USA.
Christopher H van DyckDepartment of Neurology, Yale School of Medicine, New Haven, Connecticut, USA.
Adam P MeccaDepartment of Psychiatry, Yale School of Medicine, New Haven, Connecticut, USA.
David MatuskeyDepartment of Neurology, Yale School of Medicine, New Haven, Connecticut, USA.

Funding

Yale Alzheimer Disease Research CenterP30AG066508 · NIA · YALE UNIVERSITY · PI STEPHEN M STRITTMATTER · 2020 to 2026
$30.2M
Validation of Fluorine-18 radioligand for PET imaging of synaptic density in Alzheimer's diseaseR01AG065474 · NIA · YALE UNIVERSITY · PI HUANG, YIYUN HENRY, VAN DYCK, CHRISTOPHER H · 2020 to 2024
$3.9M
NIA NIH HHS R01 AG065474the National Institutes of Health (NIH) P30AG066508the Yale Alzheimer's Disease Research Center
6 · The paper itself

Abstract

introductionSynapse loss, a key feature of behavioral variant frontotemporal dementia (bvFTD), can now be visualized in vivo using positron emission tomography (PET) that targets synaptic vesicle glycoprotein 2A (SV2A). Comparing this new imaging method with the clinical standard of glucose metabolism using

methodsWe measured synaptic vesicle glycoprotein 2A (SV2A) binding using

resultsSV2A binding was significantly lower in the frontal and temporal cortices, anterior cingulate, and insula in bvFTD patients, with more widespread and pronounced differences than those observed with DISCUSSION: Our findings suggest that, in bvFTD, the degree of lower synaptic density, as measured by SV2A PET, is larger than the degree of hypometabolism as measured by

Indexed as

BrainFluorodeoxyglucose F18Frontotemporal DementiaPositron-Emission TomographySynapsesAgedFemaleFluorine RadioisotopesHumansMaleMembrane GlycoproteinsMiddle AgedNerve Tissue ProteinsPyridinesPyrrolidinesRadiopharmaceuticalsFluorine RadioisotopesFluorodeoxyglucose F18Membrane GlycoproteinsNerve Tissue ProteinsPyridinesPyrrolidinesRadiopharmaceuticalsSV2A protein, humanSynVesT-118F‐FDG18F‐SynVesT‐1frontotemporal dementiasynaptic densitysynaptic vesicle glycoprotein 2A

Identifiers

PMID41954197
PMCPMC13063251

What Socratic holds

Textmetadata
LicenceCC BY-NC
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.