Evidence map›Paper›PMID 40613479›Full record

ArticleAlzheimer's & dementia : the journal of the Alzheimer's Association2025

Tau burden is best captured by magnitude and extent: Tau-MaX as a measure of global tau.

Christopher A Brown, Sandhitsu R Das, Katheryn A Q Cousins, Thomas F Tropea, Alice-Chen Plotkin, John A Detre, Paul A Yushkevich, Corey T McMillan, Edward B Lee, Leslie M Shaw and 3 more

Abstract read
In one paragraph

Article in Alzheimer's & dementia : the journal of the Alzheimer's Association, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–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

15 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Florzolotau (18F) retention is linked to neuropsychological performance in tauopathy.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  8. Article
  9. Article
  10. Primary age-related tauopathy.Acta neuropathologica · 2025
    Review
  11. Article
  12. Article
  13. 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
  14. Tau, atrophy, and domain-specific cognitive impairment in typical Alzheimer's disease.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  15. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors.

Christopher A BrownDepartment of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID 0000-0003-2057-3976
Sandhitsu R DasDepartment of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Katheryn A Q CousinsDepartment of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Thomas F TropeaDepartment of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Alice-Chen PlotkinDepartment of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
John A DetreDepartment of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Paul A YushkevichDepartment of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Corey T McMillanDepartment of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Edward B LeeDepartment of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Leslie M ShawDepartment of Pathology and Laboratory Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Ilya M NasrallahDepartment of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Alzheimer's Disease Neuroimaging Initiative
David A WolkDepartment of Neurology, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

Funding

Research Education ComponentP30AG072979 · NIA · UNIVERSITY OF PENNSYLVANIA · PI Corey T McMillan · 2021 to 2026
$24.8M
Project IV: In Vivo Dissection of Genetic Modifiers on Different Stages of SynucleinopathyP01AG084497 · NIA · UNIVERSITY OF PENNSYLVANIA · PI ALICE S CHEN-PLOTKIN · 2024 to 2026
$15.2M
Ex Vivo Imaging of the Aging Brain to Discover Morphology/Pathology AssociationsR01AG056014 · NIA · UNIVERSITY OF PENNSYLVANIA · PI Paul A. Yushkevich · 2017 to 2026
$4.5M
Characterization of relationship between tau pathology and neurodegeneration in Alzheimer's disease using multimodal imagingR01AG072796 · NIA · UNIVERSITY OF PENNSYLVANIA · PI Sandhitsu Das, DAVID A WOLK · 2022 to 2026
$4.0M
Modulators of Medial Temporal Lobe Subregion Structure and Function in Normal and Pathological AgingR01AG055005 · NIA · UNIVERSITY OF PENNSYLVANIA · PI WOLK, DAVID A · 2017 to 2021
$3.3M
Research Training Program in Disease Oriented Neuroscience (R25)R25NS065745 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI DETRE, JOHN A · 2009 to 2023
$3.0M
Improving the sensitivity and specificity of MRI-based biomarkers in Alzheimer's diseaseRF1AG069474 · NIA · UNIVERSITY OF PENNSYLVANIA · PI WOLK, DAVID A, YUSHKEVICH, PAUL A. · 2021 to 2021
$2.1M
Ex Vivo Imaging of the Aging Brain to Discover Morphology/Pathology AssociationsRF1AG056014 · NIA · UNIVERSITY OF PENNSYLVANIA · PI YUSHKEVICH, PAUL A. · 2023 to 2023
$2.1M
Research Training Program in Disease-Oriented Neuroscience (R25)UE5NS065745 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI Geoffrey Karl Aguirre, HAN-CHIAO ISAAC CHEN · 2024 to 2026
$1.7M
Improving the sensitivity and specificity of MRI-based biomarkers in Alzheimer's diseaseR01AG069474 · NIA · UNIVERSITY OF PENNSYLVANIA · PI WOLK, DAVID A, YUSHKEVICH, PAUL A. · 2024 to 2025
$1.4M
Alzheimer's Association AACSF-23-1152241Fred A. And Barbara M. Erb Family Foundation AACSF-23-1152241NIA NIH HHS P01 AG084497NIA NIH HHS P30 AG072979NIA NIH HHS R01 AG055005NIA NIH HHS R01 AG056014NIA NIH HHS R01 AG069474NIA NIH HHS R01 AG072796NIA NIH HHS RF1 AG056014NIA NIH HHS RF1 AG069474NIH HHS P01-AG084497NIH HHS P30-AG072979NIH HHS R01-AG055005NIH HHS R01-AG056014NIH HHS R01-AG072796NIH HHS R25-NS065745NIH HHS RF1-AG069474NINDS NIH HHS R25 NS065745NINDS NIH HHS UE5 NS065745Pennsylvania Department of Health 2019NF4100087335
6 · The paper itself

Abstract

introductionTau burden consists of both spatial spread and local accumulation, but no study has combined these measures into a single metric to capture overall global tau burden. Here we investigate a new measure combining magnitude and extent-Tau-MaX-as a marker of Alzheimer's disease (AD) severity.

methodsA total of 1077

resultsTau-MaX dynamically captured an early shift in spatial spreading to later tau accumulation across the disease spectrum. Tau-MaX had robust associations with plasma biomarkers and cross-sectional and longitudinal cognition. Global Tau-MaX was equivalent to or superior to magnitude or extent measures alone. DISCUSSION: Tau-MaX provides a region-agnostic measure of global tau burden that can be used to track disease progression across the AD continuum. HIGHLIGHTS: We measured tau extent, magnitude, and a new combination of these metrics, Tau-MaX. Extent increases early in disease, while magnitude increases in later disease stages. Tau-MaX captures this shift and is closely associated with phosphorylated tau217 and cognition. Global Tau-MaX performed similarly to or better than meta-region of interest tau magnitude or extent. Tau-MaX provides a region-agnostic measure of tau burden to track progression.

Indexed as

Alzheimer DiseaseBraintau ProteinsAgedAged, 80 and overBiomarkersCarbolinesCross-Sectional StudiesFemaleHumansMalePositron-Emission Tomography7-(6-fluoropyridin-3-yl)-5H-pyrido(4,3-b)indoleBiomarkersCarbolinesMAPT protein, humantau ProteinsAlzheimer's diseasebiomarkerscognitionlongitudinalplasmapositron emission tomography

Identifiers

PMID40613479
PMCPMC12231225

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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.