Evidence map›Paper›PMID 29868439›Full record

ArticleNeuroImage. Clinical2017

Beta-amyloid and Cortical Thickness Reveal Racial Disparities in Preclinical Alzheimer's Disease.

Ian M McDonough

Abstract read
In one paragraph

Article in NeuroImage. Clinical, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
–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

31 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Ancestry-specific effects ofmedRxiv : the preprint server for health sciences · 2026
    Article
  4. Review
  5. Article
  6. Leveraging African American family connectors for Alzheimer's disease genomic studies.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
    Article
  7. Article
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. The methodology of the Agile Nudge University.Frontiers in health services · 2023
    Article
  14. Racial differences in longitudinal Alzheimer's disease biomarkers among cognitively normal adults.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2022
    Article
  15. Article
  16. Article
  17. Review
  18. Observational
  19. Article
  20. 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

1 author.

Ian M McDonoughDepartment of Psychology, The University of Alabama, Tuscaloosa, AL 35487, USA.

Funding

Vascular factors, physical activity, and inflammation as modulators of neurodegenerative and cognitive trajectories (Project 2)P01AG036694 · NIA · MASSACHUSETTS GENERAL HOSPITAL · PI Rebecca E Amariglio · 2010 to 2026
$50.2M
Research Education CoreP30AG031054 · NIA · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI DURANT, RAEGAN WINSTON · 2007 to 2025
$11.6M
NIA NIH HHS P01 AG036694NIA NIH HHS P30 AG031054
6 · The paper itself

Abstract

African Americans are two to four times more likely to develop dementia as Non-Hispanic Whites. This increased risk among African Americans represents a critical health disparity that affects nearly 43 million Americans. The present study tested the hypothesis that older African Americans with elevated beta-amyloid would show greater neurodegeneration (smaller hippocampal volumes and decreased cortical thickness) than older Non-Hispanic Whites with elevated beta-amyloid. Data from the Harvard Aging Brain Study (HABS) were used to form a group of older African Americans and two matched groups of Non-Hispanic White adults. Amyloid-positive African Americans had decreased cortical thickness in most of the Alzheimer's disease (AD) signature regions compared with amyloid-positive Non-Hispanic Whites. This factor was negatively correlated with age and white matter hypointensities. Using support vector regression, we also found some evidence that African Americans have an older "brain age" than Non-Hispanic Whites. These findings suggest that African Americans might be more susceptible to factors causing neurodegeneration, which then might accelerate the rate of a diagnosis of AD.

Indexed as

Alzheimer DiseaseAgedAged, 80 and overAmyloid beta-PeptidesAnalysis of VarianceAniline CompoundsBenzothiazolesBlack or African AmericanBrainCerebral CortexCorrelation of DataFemaleHispanic or LatinoHumansImage Processing, Computer-AssistedMagnetic Resonance Imaging2-(4'-(methylamino)phenyl)-6-hydroxybenzothiazoleAmyloid beta-PeptidesAniline CompoundsBenzothiazolesThiazolesAlzheimer's diseaseAmyloidCortical thicknessHealth disparitiesMinority healthMRI

Identifiers

PMID29868439
PMCPMC5984571

What OpenQuestion holds

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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.