Evidence map›Paper›PMID 34715443›Full record

ArticleNeurobiology of aging2022

Abnormal tau in amyloid PET negative individuals.

Bora Yoon, Tengfei Guo, Karine Provost, Deniz Korman, Tyler J Ward, Susan M Landau, William J Jagust, Alzheimer's Disease Neuroimaging Initiative

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of aging, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

33 citing papers in PubMed, 51 citations in OpenAlex.

  1. Article
  2. Elevated AD biomarkers do not explain cognitive performance in a community-recruited clinical trial cohort.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Primary age-related tauopathy.Acta neuropathologica · 2025
    Review
  7. Article
  8. Tau burden is best captured by magnitude and extent: Tau-MaX as a measure of global tau.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  9. Comparison of visual and analytic methods of Alzheimer's disease pathologic staging.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  10. Impact of amygdala functional connectivity on cognitive impairment in Alzheimer's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2025
    Article
  11. Article
  12. Article
  13. Review
  14. Review
  15. Amygdala atrophies in specific subnuclei in preclinical Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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

8 authors at 4 institutions in 2 countries.

Bora YoonDepartment of Neurology, Konyang University Hospital, Konyang University, College of Medicine, Daejeon, Korea. Electronic address: boradori3@gmail.com.
Tengfei GuoHelen Wills Neuroscience Institute, University of California, Berkeley, CA, USA; Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
Karine ProvostMemory and Aging Center, Department of Neurology, University of California, San Francisco, CA, USA.
Deniz KormanHelen Wills Neuroscience Institute, University of California, Berkeley, CA, USA.
Tyler J WardHelen Wills Neuroscience Institute, University of California, Berkeley, CA, USA.
Susan M LandauHelen Wills Neuroscience Institute, University of California, Berkeley, CA, USA.
William J JagustHelen Wills Neuroscience Institute, University of California, Berkeley, CA, USA; Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, USA.
Alzheimer's Disease Neuroimaging InitiativeDepartment of Neurology, Konyang University Hospital, Konyang University, College of Medicine, Daejeon, Korea.
University of California, Berkeley · USLawrence Berkeley National Laboratory · USKonyang University · KRUniversity of California, San Francisco · US

Funding

Project 1U19AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE/RES/EDU · PI Duygu Tosun-Turgut · 2016 to 2026
$226.7M
Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
NIA NIH HHS U01 AG024904NIA NIH HHS U19 AG024904
6 · The paper itself

Abstract

We examined the characteristics of individuals with biomarker evidence of tauopathy but without β-amyloid (Aβ) (A-T+) in relation to individuals with (A+T+) and without (A-T-) evidence of Alzheimer's disease (AD). We included 561 participants with Aβ and tau PET from the Alzheimer's Disease Neuroimaging Initiative (ADNI). We compared A-T- (n = 316), A-T+ (n = 63), and A+T+ (n = 182) individuals on demographics, amyloid, tau, hippocampal volumes, and cognition. A-T+ individuals were low on apolipoprotein E ɛ4 prevalence (17%) and had no evidence of subtly elevated brain Aβ within the negative range. The severity of tau deposition, hippocampal atrophy, and cognitive dysfunction in the A-T+ group was intermediate between A-T- and A+T+ (all p < 0.001). Tau uptake patterns in A-T+ individuals were heterogeneous, but approximately 29% showed tau deposition in the medial temporal lobe only, consistent with primary age-related tauopathy and an additional 32% showed a pattern consistent with AD. A-T+ individuals also share other features that are characteristic of AD such as cognitive impairment and neurodegeneration, but this group is heterogeneous and likely reflects more than one disorder.

Indexed as

NeuroimagingPositron-Emission TomographyAgedAged, 80 and overAlzheimer DiseaseAmyloid beta-PeptidesAtrophyCognitionFemaleHippocampusHumansMaleTauopathiestau ProteinsAmyloid beta-Peptidestau Proteins(18)F-flortaupirPositron emission tomographyPrimary age-related tauopathyTauTauopathies

Identifiers

PMID34715443
PMCPMC9695003
OpenAlexW3203244102

What OpenQuestion holds

Textmetadata
LicenceTDM
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.