Evidence map›Paper›PMID 33568538›Full record

ArticleNeurology2021

Amyloid PET Imaging in Self-Identified Non-Hispanic Black Participants of the Anti-Amyloid in Asymptomatic Alzheimer's Disease (A4) Study.

Kacie D Deters, Valerio Napolioni, Reisa A Sperling, Michael D Greicius, Richard Mayeux, Timothy Hohman, Elizabeth C Mormino

Abstract read
In one paragraph

Article in Neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed, 3 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

87 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Trial
  5. Trial
  6. Article
  7. Review
  8. Usage and positivity rates of Alzheimer's disease biomarkers in a memory clinic.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  9. Article
  10. Article
  11. Ancestry-specific effects ofmedRxiv : the preprint server for health sciences · 2026
    Article
  12. Article
  13. Cognitive screening biases in a secondary prevention Alzheimer's disease clinical trial.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  14. Observational
  15. Article
  16. The roles of biomarkers in Alzheimer's disease clinical trials.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Review
  17. Successful strategies for supporting diverse representation in Alzheimer's disease research.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  18. Article
  19. Calibration of multisite raters for prospective visual reads of amyloid PET scans.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  20. Defining the contributions of tau pathology in the amygdala to increasing depressive symptoms in aging.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article

27 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors.

Kacie D DetersFrom the Department of Neurology and Neurological Sciences (K.D.D., V.N., M.D.G., E.C.M.), Stanford University School of Medicine, Palo Alto, CA; Department of Neurology (R.A.S.), Brigham and Women's Hospital, Massachusetts General Hospital, Boston; Department of Neurology, The Taub Institute for Research on Alzheimer's Disease and The Aging Brain, and The Institute for Genomic Medicine (R.M.), Columbia University Medical Center and The New York Presbyterian Hospital, New York; and Vanderbilt Memory and Alzheimer's Center and Vanderbilt Genetics Institute (T.H.), Nashville, TN. kdeters@stanford.edu.
Valerio NapolioniFrom the Department of Neurology and Neurological Sciences (K.D.D., V.N., M.D.G., E.C.M.), Stanford University School of Medicine, Palo Alto, CA; Department of Neurology (R.A.S.), Brigham and Women's Hospital, Massachusetts General Hospital, Boston; Department of Neurology, The Taub Institute for Research on Alzheimer's Disease and The Aging Brain, and The Institute for Genomic Medicine (R.M.), Columbia University Medical Center and The New York Presbyterian Hospital, New York; and Vanderbilt Memory and Alzheimer's Center and Vanderbilt Genetics Institute (T.H.), Nashville, TN.
Reisa A SperlingFrom the Department of Neurology and Neurological Sciences (K.D.D., V.N., M.D.G., E.C.M.), Stanford University School of Medicine, Palo Alto, CA; Department of Neurology (R.A.S.), Brigham and Women's Hospital, Massachusetts General Hospital, Boston; Department of Neurology, The Taub Institute for Research on Alzheimer's Disease and The Aging Brain, and The Institute for Genomic Medicine (R.M.), Columbia University Medical Center and The New York Presbyterian Hospital, New York; and Vanderbilt Memory and Alzheimer's Center and Vanderbilt Genetics Institute (T.H.), Nashville, TN.
Michael D GreiciusFrom the Department of Neurology and Neurological Sciences (K.D.D., V.N., M.D.G., E.C.M.), Stanford University School of Medicine, Palo Alto, CA; Department of Neurology (R.A.S.), Brigham and Women's Hospital, Massachusetts General Hospital, Boston; Department of Neurology, The Taub Institute for Research on Alzheimer's Disease and The Aging Brain, and The Institute for Genomic Medicine (R.M.), Columbia University Medical Center and The New York Presbyterian Hospital, New York; and Vanderbilt Memory and Alzheimer's Center and Vanderbilt Genetics Institute (T.H.), Nashville, TN.
Richard MayeuxFrom the Department of Neurology and Neurological Sciences (K.D.D., V.N., M.D.G., E.C.M.), Stanford University School of Medicine, Palo Alto, CA; Department of Neurology (R.A.S.), Brigham and Women's Hospital, Massachusetts General Hospital, Boston; Department of Neurology, The Taub Institute for Research on Alzheimer's Disease and The Aging Brain, and The Institute for Genomic Medicine (R.M.), Columbia University Medical Center and The New York Presbyterian Hospital, New York; and Vanderbilt Memory and Alzheimer's Center and Vanderbilt Genetics Institute (T.H.), Nashville, TN.
Timothy HohmanFrom the Department of Neurology and Neurological Sciences (K.D.D., V.N., M.D.G., E.C.M.), Stanford University School of Medicine, Palo Alto, CA; Department of Neurology (R.A.S.), Brigham and Women's Hospital, Massachusetts General Hospital, Boston; Department of Neurology, The Taub Institute for Research on Alzheimer's Disease and The Aging Brain, and The Institute for Genomic Medicine (R.M.), Columbia University Medical Center and The New York Presbyterian Hospital, New York; and Vanderbilt Memory and Alzheimer's Center and Vanderbilt Genetics Institute (T.H.), Nashville, TN.
Elizabeth C MorminoFrom the Department of Neurology and Neurological Sciences (K.D.D., V.N., M.D.G., E.C.M.), Stanford University School of Medicine, Palo Alto, CA; Department of Neurology (R.A.S.), Brigham and Women's Hospital, Massachusetts General Hospital, Boston; Department of Neurology, The Taub Institute for Research on Alzheimer's Disease and The Aging Brain, and The Institute for Genomic Medicine (R.M.), Columbia University Medical Center and The New York Presbyterian Hospital, New York; and Vanderbilt Memory and Alzheimer's Center and Vanderbilt Genetics Institute (T.H.), Nashville, TN.

Funding

Anti-Amyloid Treatment in Asymptomatic Alzheimer's Disease (A4) Open-Label Extension StudyR01AG063689 · NIA · BRIGHAM AND WOMEN'S HOSPITAL · PI AISEN, PAUL S., SPERLING, REISA A. · 2019 to 2024
$30.8M
Stanford Alzheimer's Disease Research CenterAdmin Supp: Developing iPSC models for AD and PDP30AG066515 · NIA · STANFORD UNIVERSITY · PI ELIZABETH MORMINO · 2020 to 2026
$29.0M
Stanford Medicine Center for Longevity and Healthy Aging Research Education CoreP30AG059307 · NIA · STANFORD UNIVERSITY · PI PERIYAKOIL, VYJEYANTHI S · 2018 to 2025
$4.9M
Genetic Drivers of Resilience to Alzheimer's DiseaseR01AG059716 · NIA · VANDERBILT UNIVERSITY MEDICAL CENTER · PI HOHMAN, TIMOTHY J · 2018 to 2022
$4.4M
Influence of genetic risk factors on biomarkers and cognitive decline in preclinical ADK01AG051718 · NIA · STANFORD UNIVERSITY · PI MORMINO, ELIZABETH · 2016 to 2020
$642k
Genetic Resilience to the Clinical Manifestation of DementiaK01AG049164 · NIA · VANDERBILT UNIVERSITY MEDICAL CENTER · PI HOHMAN, TIMOTHY J · 2016 to 2020
$595k
NIA NIH HHS K01 AG049164NIA NIH HHS K01 AG051718NIA NIH HHS P30 AG059307NIA NIH HHS P30 AG066515NIA NIH HHS R01 AG059716NIA NIH HHS R01 AG063689
6 · The paper itself

Abstract

objectiveTo examine whether amyloid PET in cognitively normal (CN) individuals screened for the Anti-Amyloid in Asymptomatic Alzheimer's Disease (A4) study differed across self-identified non-Hispanic White and Black (NHW and NHB) groups.

methodsWe examined 3,689 NHW and 144 NHB participants who passed initial screening for the A4 study and underwent amyloid PET. The effect of race on amyloid PET was examined using logistic (dichotomous groups) and linear (continuous values) regression controlling for age, sex, and number of

resultsNHB participants had lower rates of amyloid positivity and lower continuous amyloid levels compared to NHW participants. This race effect on amyloid was strongest in the

conclusionReduced amyloid was observed in self-identified NHB participants who passed initial eligibility criteria for the A4 study. This work stresses the importance of investigating AD biomarkers in ancestrally diverse samples as well as the need for careful consideration regarding study eligibility criteria in AD prevention trials.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseAmyloidogenic ProteinsApolipoproteins EBiomarkersBlack or African AmericanBrainFemaleHumansMalePositron-Emission TomographyUnited StatesAmyloidogenic ProteinsApoE protein, humanApolipoproteins EBiomarkers

Identifiers

PMID33568538
PMCPMC8032379

What OpenQuestion holds

Textmetadata
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.