ArticleNeurology2021
Amyloid PET Imaging in Self-Identified Non-Hispanic Black Participants of the Anti-Amyloid in Asymptomatic Alzheimer's Disease (A4) Study.
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.
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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.
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.
Who cites it
87 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Updated Appropriate Use Criteria for Amyloid and Tau PET: A Report from the Alzheimer's Association and Society for Nuclear Medicine and Molecular Imaging Workgroup.Journal of nuclear medicine : official publication, Society of Nuclear Medicine · 2025Pooled it
- Updated appropriate use criteria for amyloid and tau PET: A report from the Alzheimer's Association and Society for Nuclear Medicine and Molecular Imaging Workgroup.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Pooled it
- Examining the Role of Community Engagement in Enhancing the Participation of Racial and Ethnic Minoritized Communities in Alzheimer's Disease Clinical Trials; A Rapid Review.The journal of prevention of Alzheimer's disease · 2024Pooled it
- Late-life body mass index and amyloid interaction on cognitive decline in unimpaired older adults.The journal of prevention of Alzheimer's disease · 2026Trial
- Amyloid and Tau Prediction of Cognitive and Functional Decline in Unimpaired Older Individuals: Longitudinal Data from the A4 and LEARN Studies.The journal of prevention of Alzheimer's disease · 2024Trial
- Predictors of extreme future time perspective change in persons who learn an Alzheimer's disease biomarker test result.Aging & mental health · 2026Article
- Worry and Anxiety in the Era of Early Diagnosis and Disease Modifying Treatment for Alzheimer's Disease.Current psychiatry reports · 2026Review
- Usage and positivity rates of Alzheimer's disease biomarkers in a memory clinic.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Differences in amyloid PET positivity based on ethnoracial group and social determinants of health: The new IDEAS study.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Longitudinal trajectories of divergent cortical tau patterns in preclinical Alzheimer's disease.Brain : a journal of neurology · 2026Article
- Ancestry-specific effects ofmedRxiv : the preprint server for health sciences · 2026Article
- Association of residential neighborhood disadvantage with amyloid PET positivity among cognitively impaired individuals.Alzheimer's & dementia. Behavior & socioeconomics of aging · 2026Article
- Cognitive screening biases in a secondary prevention Alzheimer's disease clinical trial.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Association of neighborhood disadvantage with Alzheimer's disease pathology and the stability of blood-based biomarker performance.The journal of prevention of Alzheimer's disease · 2026Observational
- Sex Differences in Alzheimer Disease Imaging Biomarkers in a Diverse, Community-Based Cohort.JAMA network open · 2026Article
- The roles of biomarkers in Alzheimer's disease clinical trials.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026Review
- Successful strategies for supporting diverse representation in Alzheimer's disease research.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- Diagnostic classifications based on cognitive, CSF, and PET biomarkers across ADNI cohorts: cross-sectional and longitudinal variability.Brain communications · 2026Article
- Calibration of multisite raters for prospective visual reads of amyloid PET scans.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
- 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 · 2025Article
27 more citing papers are in PubMed but not listed here.
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Authors and funding
7 authors.
Funding
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.
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