Evidence map›Paper›PMID 31909172›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)2019

Rates of age- and amyloid β-associated cortical atrophy in older adults with superior memory performance.

Christa Dang, Nawaf Yassi, Karra D Harrington, Ying Xia, Yen Ying Lim, David Ames, Simon M Laws, Martha Hickey, Stephanie Rainey-Smith, Hamid R Sohrabi and 10 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
2.8field-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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  7. Review
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  10. Synergistic Association between Plasma AβACS chemical neuroscience · 2021
    Article
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  17. Comments about SuperAging and SuperAgers.Alzheimer's & dementia (Amsterdam, Netherlands) · 2019
    Article
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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

20 authors at 9 institutions in 2 countries.

Christa DangDepartment of Obstetrics and Gynaecology, Melbourne Medical School, The University of Melbourne, Parkville, Victoria, Australia.
Nawaf YassiThe Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia.
Karra D HarringtonThe Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia.
Ying XiaCSIRO Health and Biosecurity, the Australian eHealth Research Centre, Brisbane, Queensland, Australia.
Yen Ying LimThe Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia.
David AmesAcademic Unit for Psychiatry of Old Age, Department of Psychiatry, The University of Melbourne, Parkville, Victoria, Australia.
Simon M LawsCooperative Research Centre for Mental Health, Parkville, Victoria, Australia.
Martha HickeyDepartment of Obstetrics and Gynaecology, Melbourne Medical School, The University of Melbourne, Parkville, Victoria, Australia.
Stephanie Rainey-SmithCentre of Excellence for Alzheimer's Disease Research and Care, School of Exercise, Biomedical and Health Sciences, Edith Cowan University, Perth, Western Australia, Australia.
Hamid R SohrabiCentre of Excellence for Alzheimer's Disease Research and Care, School of Exercise, Biomedical and Health Sciences, Edith Cowan University, Perth, Western Australia, Australia.
James D DoeckeCSIRO Health and Biosecurity, the Australian eHealth Research Centre, Brisbane, Queensland, Australia.
Jurgen FrippCSIRO Health and Biosecurity, the Australian eHealth Research Centre, Brisbane, Queensland, Australia.
Olivier SalvadoCSIRO Health and Biosecurity, the Australian eHealth Research Centre, Brisbane, Queensland, Australia.
Peter J SnyderGeorge & Anne Ryan Institute for Neuroscience, The University of Rhode Island, Kingston, RI, USA.
Michael WeinbornCentre of Excellence for Alzheimer's Disease Research and Care, School of Exercise, Biomedical and Health Sciences, Edith Cowan University, Perth, Western Australia, Australia.
Victor L VillemagneThe Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia.
Christopher C RoweDepartment of Molecular Imaging & Therapy, Austin Health, Melbourne, Victoria, Australia.
Colin L MastersThe Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia.
Paul MaruffThe Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, Victoria, Australia.
AIBL Research Group
Florey Institute of Neuroscience and Mental Health · AUUniversity of Melbourne · AUThe Royal Melbourne Hospital · AUEdith Cowan University · AUAustralian e-Health Research Centre · AUCSIRO Health and Biosecurity · AUAustin Health · AUNational Ageing Research Institute · AUUniversity of Rhode Island · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionSuperior cognitive performance in older adults may reflect underlying resistance to age-associated neurodegeneration. While elevated amyloid β (Aβ) deposition (Aβ+) has been associated with increased cortical atrophy, it remains unknown whether "SuperAgers" may be protected from Aβ-associated neurodegeneration.

methodsNeuropsychologically defined SuperAgers (n = 172) and cognitively normal for age (n = 172) older adults from the Australian Imaging, Biomarkers and Lifestyle study were case matched. Rates of cortical atrophy over 8 years were examined by SuperAger classification and Aβ status.

resultsOf the case-matched SuperAgers and cognitively normal for age older adults, 40.7% and 40.1%, respectively, were Aβ+. Rates of age- and Aβ-associated atrophy did not differ between the groups on any measure. Aβ- individuals displayed the slowest rates of atrophy. DISCUSSION: Maintenance of superior memory in late life does not reflect resistance to age- or Aβ-associated atrophy. However, those individuals who reached old age without cognitive impairment nor elevated Aβ deposition (i.e. Aβ-) displayed reduced rates of cortical atrophy.

Indexed as

AgingAlzheimer's diseaseMemoryNeurodegenerationβ-amyloid

Identifiers

PMID31909172
PMCPMC6939054
OpenAlexW2968201728

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.