Evidence map›Paper›PMID 33408147›Full record

ArticleNeurology2021

Temporal Dynamics of β-Amyloid Accumulation in Aging and Alzheimer Disease.

William J Jagust, Susan M Landau, Alzheimer's Disease Neuroimaging Initiative

Open access · bronzeAbstract read
In one paragraph

Article in Neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
9.2field-weighted citation impact, top 1% 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

80 citing papers in PubMed, 111 citations in OpenAlex.

  1. Longitudinal clinical outcomes after amyloid clearance in aducanumab phase 3 studies.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Trial
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  3. Donanemab exposure-response in early symptomatic Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Trial
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  10. Do amyloid trajectories reach a ceiling? Evidence from iterative approximation and simulation.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  11. Article
  12. Review
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  15. 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
  16. Article
  17. Article
  18. Review
  19. AI-enhanced Centiloid quantification of amyloid PET images.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  20. Article

20 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

3 authors at 1 institution in 1 country.

William J JagustFrom the Helen Wills Neuroscience Institute, University of California, Berkeley; and Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA. jagust@berkeley.edu.ORCID http://orcid.org/0000-0002-4458-113X
Susan M LandauFrom the Helen Wills Neuroscience Institute, University of California, Berkeley; and Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA.
Alzheimer's Disease Neuroimaging Initiative
Lawrence Berkeley National Laboratory · US

Funding

Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
CIHRNIA NIH HHS U01 AG024904
6 · The paper itself

Abstract

objectiveTo understand the time course of β-amyloid (Aβ) deposition in the brain, which is crucial for planning therapeutic trials of Aβ-lowering therapies in Alzheimer disease (AD).

methodsTwo samples of participants from the Alzheimer's Disease Neuroimaging Initiative were studied with [

resultsThe relationship between time and brain Aβ was sigmoidal, taking 6.4 years to transition from amyloid negative to positive and another 13.9 years to the onset of MCI. Aβ deposition rates began to slow only 3.8 years after reaching the positivity threshold. The incidence rate for scan positivity was 38/1,000 person-years, and factors associated with conversion were age, baseline FBP, and being a female

conclusionsLowering brain Aβ must be accomplished early in the evolution of AD. Transitions of PET scans from Aβ- to Aβ+ should be predictable, and it is reasonable to expect that lowering rates of Aβ even in early stages could produce clinically significant benefits.

Indexed as

AgedAged, 80 and overAgingAlzheimer DiseaseAmyloid beta-PeptidesAniline CompoundsApolipoprotein E4CarbolinesCognitive DysfunctionEthylene GlycolsFemaleFollow-Up StudiesHeterozygoteHumansLongitudinal StudiesMale7-(6-fluoropyridin-3-yl)-5H-pyrido(4,3-b)indoleAmyloid beta-PeptidesAniline CompoundsApolipoprotein E4CarbolinesEthylene GlycolsflorbetapirMAPT protein, humantau Proteins

Identifiers

PMID33408147
PMCPMC8055327
OpenAlexW3118496727

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.