Evidence map›Paper›PMID 34256835›Full record

ArticleAlzheimer's research & therapy2021

White matter hyperintensities in autopsy-confirmed frontotemporal lobar degeneration and Alzheimer's disease.

Philippe Desmarais, Andrew F Gao, Krista Lanctôt, Ekaterina Rogaeva, Joel Ramirez, Nathan Herrmann, Donald T Stuss, Sandra E Black, Julia Keith, Mario Masellis

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
5.6field-weighted citation impact, top 3% 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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 66 citations in OpenAlex.

  1. Pooled it
  2. Article
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  5. Article
  6. Plasma placental growth factor as a susceptibility biomarker for longitudinal cognitive change.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  7. Article
  8. Neuropsychiatric symptom subtypes and dementia-associated neuropathologic change.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. APOE ε4-associated heterogeneity of neuroimaging biomarkers across the Alzheimer's disease continuum.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  14. Article
  15. The genetic and environmental etiology of novel frequency-driven regional parcellations of abnormal white matter.American journal of medical genetics. Part B, Neuropsychiatric genetics : the official publication of the International Society of Psychiatric Genetics · 2025
    Article
  16. Article
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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

10 authors at 3 institutions in 1 country.

Philippe Desmarais *Cognitive & Movement Disorders Clinic, Sunnybrook Health Sciences Centre, 2075 Bayview Ave., Room A4 42, Toronto, ON, M4N 3M5, Canada.
Andrew F Gao *Laboratory Medicine and Molecular Diagnostics, Sunnybrook Health Sciences Centre, Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.
Krista LanctôtHurvitz Brain Sciences Program, Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada.
Ekaterina RogaevaDivision of Neurology, Department of Medicine, University of Toronto, Toronto, ON, Canada.
Joel RamirezL.C. Campbell Cognitive Neurology Research Unit, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.
Nathan HerrmannHurvitz Brain Sciences Program, Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada.
Donald T StussHurvitz Brain Sciences Program, Sunnybrook Research Institute, University of Toronto, Toronto, ON, Canada.
Sandra E BlackL.C. Campbell Cognitive Neurology Research Unit, Sunnybrook Health Sciences Centre, Toronto, ON, Canada.
Julia Keith *Laboratory Medicine and Molecular Diagnostics, Sunnybrook Health Sciences Centre, Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.
Mario Masellis *Cognitive & Movement Disorders Clinic, Sunnybrook Health Sciences Centre, 2075 Bayview Ave., Room A4 42, Toronto, ON, M4N 3M5, Canada. mario.masellis@sunnybrook.ca.
University of Toronto · CASunnybrook Health Science Centre · CAHealth Sciences Centre · CA

Funding

CIHR MOP13129CIHR MOP327387
6 · The paper itself

Abstract

backgroundWe aimed to systematically describe the burden and distribution of white matter hyperintensities (WMH) and investigate correlations with neuropsychiatric symptoms in pathologically proven Alzheimer's disease (AD) and frontotemporal lobar degeneration (FTLD).

methodsAutopsy-confirmed cases were identified from the Sunnybrook Dementia Study, including 15 cases of AD and 58 cases of FTLD (22 FTLD-TDP cases; 10 FTLD-Tau [Pick's] cases; 11 FTLD-Tau Corticobasal Degeneration cases; and 15 FTLD-Tau Progressive Supranuclear Palsy cases). Healthy matched controls (n = 35) were included for comparison purposes. Data analyses included ANCOVA to compare the burden of WMH on antemortem brain MRI between groups, adjusted linear regression models to identify associations between WMH burden and neuropsychiatric symptoms, and image-guided pathology review of selected areas of WMH from each pathologic group.

resultsBurden and regional distribution of WMH differed significantly between neuropathological groups (F

conclusionsThese findings suggest that WMH are associated with neuropsychiatric manifestations in AD and FTLD and that WMH burden and regional distribution in neurodegenerative disorders differ according to the underlying neuropathological processes.

Indexed as

Alzheimer DiseaseFrontotemporal DementiaFrontotemporal Lobar DegenerationWhite MatterAutopsyHumansAlzheimer’s diseaseFrontotemporal lobar degenerationMagnetic resonance imagingNeuropathologyNeuropsychiatric symptomsWhite matter hyperintensity

Identifiers

PMID34256835
PMCPMC8278704
OpenAlexW3111571127

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.