Evidence map›Paper›PMID 33524806›Full record

ArticleNeuroImage. Clinical2021

Lack of association between acute stroke, post-stroke dementia, race, and β-amyloid status.

Lauren N Koenig, Lena M McCue, Elizabeth Grant, Parinaz Massoumzadeh, Catherine M Roe, Chengjie Xiong, Krista L Moulder, Liang Wang, Allyson R Zazulia, Peggy Kelly and 5 more

Open access · goldAbstract read
In one paragraph

Article in NeuroImage. Clinical, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

14 citing papers in PubMed, 18 citations in OpenAlex.

  1. Positron emission tomography for diagnosing cerebrovascular disorders: a scoping review.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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  4. Review
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  10. Mitophagy in Human Diseases.International journal of molecular sciences · 2021
    Review
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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

15 authors at 1 institution in 1 country.

Lauren N KoenigDepartment of Radiology, Washington University School of Medicine, St. Louis, MO USA.
Lena M McCueDivision of Biostatistics, Washington University School of Medicine, St. Louis, MO USA.
Elizabeth GrantDivision of Biostatistics, Washington University School of Medicine, St. Louis, MO USA.
Parinaz MassoumzadehDepartment of Radiology, Washington University School of Medicine, St. Louis, MO USA.
Catherine M RoeDepartment of Neurology, Washington University School of Medicine, St. Louis, MO USA.
Chengjie XiongDivision of Biostatistics, Washington University School of Medicine, St. Louis, MO USA.
Krista L MoulderDepartment of Neurology, Washington University School of Medicine, St. Louis, MO USA.
Liang WangDepartment of Radiology, Washington University School of Medicine, St. Louis, MO USA.
Allyson R ZazuliaDepartment of Radiology, Washington University School of Medicine, St. Louis, MO USA; Department of Neurology, Washington University School of Medicine, St. Louis, MO USA.
Peggy KellyDepartment of Neurology, Washington University School of Medicine, St. Louis, MO USA.
Aylin DincerDepartment of Radiology, Washington University School of Medicine, St. Louis, MO USA.
Aiad ZazaDepartment of Radiology, Washington University School of Medicine, St. Louis, MO USA.
Joshua S ShimonyDepartment of Radiology, Washington University School of Medicine, St. Louis, MO USA.
Tammie L S BenzingerDepartment of Radiology, Washington University School of Medicine, St. Louis, MO USA.
John C MorrisDepartment of Neurology, Washington University School of Medicine, St. Louis, MO USA. Electronic address: jcmorris@wustl.edu.
Washington University in St. Louis · US

Funding

Smartphone-Based "Burst" Cognitive AssessmentsP01AG003991 · NIA · WASHINGTON UNIVERSITY · PI JOHN MORRIS · 1985 to 2026
$69.5M
Imaging CoreU19AG032438 · NIA · WASHINGTON UNIVERSITY · PI BATEMAN, RANDALL J · 2010 to 2025
$53.9M
WASHINGTON UNIVERSITY ALZHEIMERS DISEASE RESEARCH CENTERP50AG005681 · NIA · WASHINGTON UNIVERSITY · PI FAGAN, ANNE · 1985 to 2019
$52.1M
The natural history of AB accumulation in preclinical ADP01AG026276 · NIA · WASHINGTON UNIVERSITY · PI MORRIS, JOHN · 2005 to 2025
$49.5M
Research Education ComponentP30AG066444 · NIA · WASHINGTON UNIVERSITY · PI DAVID M. HOLTZMAN · 2020 to 2026
$28.7M
NIA NIH HHS P01 AG003991NIA NIH HHS P01 AG026276NIA NIH HHS P30 AG066444NIA NIH HHS P50 AG005681NIA NIH HHS U19 AG032438
6 · The paper itself

Abstract

introductionStroke and Alzheimer disease share risk factors and often co-occur, and both have been reported to have a higher prevalence in African Americans as compared to non-Hispanic whites. However, their interaction has not been established. The objective of this study was to determine if preclinical Alzheimer disease is a risk factor for stroke and post-stroke dementia and whether racial differences moderate this relationship.

methodsThis case-control study was analyzed in 2019 using retrospective data from 2007 to 2013. Participants were adults age 65 and older with and without acute ischemic stroke. Recruitment included word of mouth and referrals in Saint Louis, MO, with stroke participants recruited from acutely hospitalized patients and non-stroke participants from community living older adults who were research volunteers. Our assessment included radiologic reads of infarcts, microbleeds, and white matter hyperintensitites (WMH); a Pittsburgh Compound B PET measure of cortical β-amyloid binding; quantitative measures of hippocampal and WMH volume; longitudinal Mini Mental State Examination (MMSE) scores; and Clinical Dementia Rating (CDR) 1 year post-stroke.

resultsA total of 243 participants were enrolled, 81 of which had a recent ischemic stroke. Participants had a mean age of 75, 57% were women, and 52% were African American. Cortical amyloid did not differ significantly by race, stroke status, or CDR post-stroke. There were racial differences in MMSE scores at baseline (mean 26.8 for African Americans, 27.9 for non-Hispanic whites, p = 0.03), but not longitudinally. African Americans were more likely to have microbleeds (32.8% vs 22.6%, p = 0.04), and within the acute stroke group, African Americans were more likely to have small infarcts (75.6% vs 56.8%, p = 0.049).

conclusionPreclinical Alzheimer disease did not show evidence of being a risk factor for stroke nor predictive of post-stroke dementia. We did not observe racial differences in β-amyloid levels. However, even after controlling for several vascular risk factors, African Americans with clinical stroke presentations had greater levels of vascular pathology on MRI.

Indexed as

Alzheimer DiseaseBrain IschemiaStrokeAgedAmyloid beta-PeptidesCase-Control StudiesFemaleHumansRetrospective StudiesAmyloid beta-PeptidesAfrican AmericanAmyloid PETMRIPreclinical Alzheimer DiseaseStroke

Identifiers

PMID33524806
PMCPMC7848631
OpenAlexW3120421209

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.