Evidence map›Paper›PMID 32995465›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)2020

Cognitive indicators of transition to preclinical and prodromal stages of Alzheimer's disease in Down syndrome.

Sigan L Hartley, Benjamin L Handen, Darlynne Devenny, Dana Tudorascu, Brianna Piro-Gambetti, Matthew D Zammit, Charles M Laymon, William E Klunk, Shahid Zaman, Annie Cohen and 1 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 5% 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

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

  1. Early Markers for Dementia in the Intellectual Disability Population: A Systematic Literature Review.Journal of applied research in intellectual disabilities : JARID · 2025
    Pooled it
  2. Review
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Preliminary investigation of obstructive sleep apnea and Alzheimer's disease in down syndrome.Sleep advances : a journal of the Sleep Research Society · 2025
    Article
  12. Review
  13. Does Employment Complexity Promote Healthy Cognitive Aging in Down Syndrome?Journal of intellectual disabilities : JOID · 2024
    Article
  14. AT(N) biomarker profiles and Alzheimer's disease symptomology in Down syndrome.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  15. Characterizing the emergence of amyloid and tau burden in Down syndrome.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2024
    Article
  16. Article
  17. Article
  18. Weight Loss and Alzheimer's Disease in Down Syndrome.Journal of Alzheimer's disease : JAD · 2023
    Article
  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

11 authors at 4 institutions in 2 countries.

Sigan L HartleyWaisman Center University of Wisconsin-Madison Madison Wisconsin USA.
Benjamin L HandenDepartment of Psychiatry University of Pittsburgh Pittsburgh Pennsylvania USA.
Darlynne DevennyNew York State Institute for Basic Research in Developmental Disabilities Albany New York USA.
Dana TudorascuDepartment of Psychiatry University of Pittsburgh Pittsburgh Pennsylvania USA.
Brianna Piro-GambettiWaisman Center University of Wisconsin-Madison Madison Wisconsin USA.
Matthew D ZammitWaisman Center University of Wisconsin-Madison Madison Wisconsin USA.
Charles M LaymonDepartment of Psychiatry University of Pittsburgh Pittsburgh Pennsylvania USA.
William E KlunkDepartment of Psychiatry University of Pittsburgh Pittsburgh Pennsylvania USA.
Shahid ZamanDepartment of Psychiatry University of Cambridge Cambridge UK.
Annie CohenDepartment of Psychiatry University of Pittsburgh Pittsburgh Pennsylvania USA.
Bradley T ChristianWaisman Center University of Wisconsin-Madison Madison Wisconsin USA.
University of Pittsburgh · USUniversity of Wisconsin–Madison · USNew York State Office for People With Developmental Disabilities · USUniversity of Cambridge · GB

Funding

Project 3: Biomarkers for DS Clinical TrialsU19AG068054 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI ANCES, BEAU M · 2020 to 2025
$103.7M
NIA NIH HHS U19 AG068054
6 · The paper itself

Abstract

introductionThere is a critical need to identify measures of cognitive functioning sensitive to early Alzheimer's disease (AD) pathophysiology in Down syndrome to advance clinical trial research in this at-risk population. The objective of the study was to longitudinally track performance on cognitive measures in relation to neocortical and striatal amyloid beta (Aβ) in non-demented Down syndrome.

methodsThe study included 118 non-demented adults with Down syndrome who participated in two to five points of data collection, spanning 1.5 to 8 years. Episodic memory, visual attention and executive functioning, and motor planning and coordination were assessed. Aβ was measured via [C-11] Pittsburgh Compound-B (PiB) PET.

resultsPiB was associated with level and rate of decline in cognitive performance in episodic memory, visual attention, executive functioning, and visuospatial ability in models controlling for chronological age. DISCUSSION: The Cued Recall Test emerged as a promising indicator of transition from preclinical to prodromal AD.

Indexed as

Alzheimer's diseaseamyloidDown syndromememorypreclinical

Identifiers

PMID32995465
PMCPMC7507534
OpenAlexW3091355673

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.