Evidence map›Paper›PMID 34466653›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)2021

Head injury is associated with tau deposition on PET in MCI and AD patients.

Shannon L Risacher, John D West, Rachael Deardorff, Sujuan Gao, Martin R Farlow, Jared R Brosch, Liana G Apostolova, Thomas W McAllister, Yu-Chien Wu, William J Jagust and 4 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.8field-weighted citation impact, top 15% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Plasma proteomic Alzheimer's risk score: Biological age clock and pseudotime trajectory.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Head injury is associated with tau deposition on PET in MCI and AD patients.Alzheimer's & dementia (Amsterdam, Netherlands) · 2021
    Article
  12. Association between BrainAGE and Alzheimer's disease biomarkers.Alzheimer's & dementia (Amsterdam, Netherlands)
    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

14 authors at 4 institutions in 1 country.

Shannon L RisacherDepartment of Radiology and Imaging Sciences Indiana University School of Medicine Indianapolis Indiana USA.
John D WestDepartment of Radiology and Imaging Sciences Indiana University School of Medicine Indianapolis Indiana USA.
Rachael DeardorffDepartment of Radiology and Imaging Sciences Indiana University School of Medicine Indianapolis Indiana USA.
Sujuan GaoIndiana Alzheimer's Disease Research Center Indiana University School of Medicine Indianapolis Indiana USA.
Martin R FarlowIndiana Alzheimer's Disease Research Center Indiana University School of Medicine Indianapolis Indiana USA.
Jared R BroschIndiana Alzheimer's Disease Research Center Indiana University School of Medicine Indianapolis Indiana USA.
Liana G ApostolovaDepartment of Radiology and Imaging Sciences Indiana University School of Medicine Indianapolis Indiana USA.
Thomas W McAllisterDepartment of Psychiatry Indiana University School of Medicine Indianapolis Indiana USA.
Yu-Chien WuDepartment of Radiology and Imaging Sciences Indiana University School of Medicine Indianapolis Indiana USA.
William J JagustHelen Wills Neuroscience Institute University of California, Berkeley Berkeley California USA.
Susan M LandauHelen Wills Neuroscience Institute University of California, Berkeley Berkeley California USA.
Michael W WeinerDepartments of Radiology Medicine and Psychiatry University of California-San Francisco San Francisco California USA.
Andrew J SaykinDepartment of Radiology and Imaging Sciences Indiana University School of Medicine Indianapolis Indiana USA.
Alzheimer's Disease Neuroimaging Initiative#
Indiana University – Purdue University Indianapolis · USIndiana University School of MedicineUniversity of California, Berkeley · USSan Francisco VA Medical Center · US

Funding

Alzheimer's Disease Neuroimaging Initiative - SupplementU01AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE RES &EDUC · PI WEINER, MICHAEL W · 2004 to 2015
$121.0M
National Centralized Repository for Alzheimer's Disease and Related Dementias (NCRAD)U24AG021886 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI TATIANA M. FOROUD · 2002 to 2026
$119.8M
Research Education ComponentP30AG010133 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI GHETTI, BERNARDINO FRANCESCO · 1991 to 2020
$37.3M
Research Education ComponentP30AG072976 · NIA · INDIANA UNIVERSITY INDIANAPOLIS · PI ANDREW J SAYKIN · 2021 to 2026
$24.1M
Memory Circuitry in MCI and Early Alzheimer’s Disease Prodrome: Molecular DriversR01AG019771 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI SAYKIN, ANDREW J · 2001 to 2021
$6.9M
Multi-Domain Sensory Measures as Biomarkers of Alzheimer's Disease in Preclinical and Prodromal StagesR01AG061788 · NIA · INDIANA UNIVERSITY INDIANAPOLIS · PI RISACHER, SHANNON L · 2019 to 2023
$3.0M
Comprehensive White-matter Microstructure-informed Analytical Methods to Elucidate Neurobiological Mechanisms of Sports-related Concussion (SRC)R01NS112303 · NINDS · INDIANA UNIVERSITY INDIANAPOLIS · PI HAREZLAK, JAROSLAW, WU, YU-CHIEN · 2020 to 2024
$2.3M
Modeling Axonal Density and Inflammation-Associated Cellularity in Alzheimer’s Disease Using Hybrid Diffusion ImagingR01AG053993 · NIA · INDIANA UNIVERSITY INDIANAPOLIS · PI WU, YU-CHIEN · 2016 to 2020
$2.0M
Sensory and Perceptual Measures as Biomarkers of Alzheimer's Disease PathologyK01AG049050 · NIA · INDIANA UNIVERSITY INDIANAPOLIS · PI RISACHER, SHANNON L · 2015 to 2019
$612k
NIA NIH HHS K01 AG049050NIA NIH HHS P30 AG010133NIA NIH HHS P30 AG072976NIA NIH HHS R01 AG019771NIA NIH HHS R01 AG053993NIA NIH HHS R01 AG061788NIA NIH HHS U01 AG024904NIA NIH HHS U24 AG021886NINDS NIH HHS R01 NS112303
6 · The paper itself

Abstract

introductionHead injuries (HI) are a risk factor for dementia, but the underlying etiology is not fully known. Understanding whether tau might mediate this relationship is important.

methodsCognition and tau deposition were compared between 752 individuals with (impaired, n = 302) or without cognitive impairment (CN, n = 450) with amyloid and [

resultsSixty-three (38 CN, 25 impaired) reported a history of HI. Higher neuropsychiatric scores and poorer memory were observed in those with a history of HI. Tau was higher in individuals with a history of HI, especially those who experienced a loss of consciousness (LOC). Results were driven by impaired individuals, especially amyloid beta-positive individuals with history of HI with LOC. DISCUSSION: These findings suggest biological changes, such as greater tau, are associated with HI in individuals with cognitive impairment. Small effect sizes were observed; thus, further studies should replicate and extend these results.

Indexed as

[18F]flortaucipir positron emission tomography (PET)Alzheimer's diseasehead injurymild cognitive impairmenttautraumatic brain injury

Identifiers

PMID34466653
PMCPMC8383323
OpenAlexW3195640227

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.