Evidence map›Paper›PMID 26040676›Full record

ArticleAnnals of neurology2015

Age and amyloid effects on human central nervous system amyloid-beta kinetics.

Bruce W Patterson, Donald L Elbert, Kwasi G Mawuenyega, Tom Kasten, Vitaliy Ovod, Shengmei Ma, Chengjie Xiong, Robert Chott, Kevin Yarasheski, Wendy Sigurdson and 6 more

Open access · greenAbstract read
In one paragraph

Article in Annals of neurology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 120 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
120citing papers in PubMed, 1 pooled it
9.6field-weighted citation impact, top 1% 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

120 citing papers in PubMed, 1 synthesis or guideline pooled it, 200 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Trial
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  5. Trial
  6. Article
  7. Review
  8. Article
  9. Exploring longitudinal relationships among Alzheimer's disease biomarkers.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
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  13. Review
  14. Article
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  16. Longitudinal plasma proteomics: relation to incident Alzheimer's disease dementia and biomarkers.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  17. Article
  18. Article
  19. Article
  20. The Role of Neprilysin and Insulin-Degrading Enzyme in the Etiology of Sporadic Alzheimer's Disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025
    Article

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

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

16 authors at 2 institutions in 1 country.

Bruce W PattersonDepartment of Medicine, Washington University in St. Louis, St. Louis, MO.
Donald L ElbertDepartment of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO.
Kwasi G MawuenyegaDepartment of Neurology, Washington University in St. Louis, St. Louis, MO.
Tom KastenDepartment of Neurology, Washington University in St. Louis, St. Louis, MO.
Vitaliy OvodDepartment of Neurology, Washington University in St. Louis, St. Louis, MO.
Shengmei MaDepartment of Biostatistics, Washington University in St. Louis, St. Louis, MO.
Chengjie XiongDepartment of Biostatistics, Washington University in St. Louis, St. Louis, MO.
Robert ChottDepartment of Medicine, Washington University in St. Louis, St. Louis, MO.
Kevin YarasheskiDepartment of Medicine, Washington University in St. Louis, St. Louis, MO.
Wendy SigurdsonDepartment of Neurology, Washington University in St. Louis, St. Louis, MO.
Lily ZhangHope Center for Neurological Disorders, Department of Neurology, Washington University in St. Louis, St. Louis, MO.
Alison GoateDepartment of Psychiatry, Washington University in St. Louis, St. Louis, MO.
Tammie BenzingerDepartment of Radiology, Washington University in St. Louis, St. Louis, MO.
John C MorrisDepartment of Neurology, Washington University in St. Louis, St. Louis, MO.
David HoltzmanDepartment of Neurology, Washington University in St. Louis, St. Louis, MO.
Randall J BatemanDepartment of Neurology, Washington University in St. Louis, St. Louis, MO.
Washington University in St. Louis · USHope Center for Neurological Disorders · US

Funding

National Centralized Repository for Alzheimer's Disease and Related Dementias (NCRAD)U24AG021886 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI TATIANA M. FOROUD · 2002 to 2026
$119.8M
Smartphone-Based "Burst" Cognitive AssessmentsP01AG003991 · NIA · WASHINGTON UNIVERSITY · PI CHENGJIE XIONG · 1985 to 2026
$69.5M
WASHINGTON UNIVERSITY ALZHEIMERS DISEASE RESEARCH CENTERP50AG005681 · NIA · WASHINGTON UNIVERSITY · PI FAGAN, ANNE · 1985 to 2019
$52.1M
The natural history of AB accumulation in preclinical ADP01AG026276 · NIA · WASHINGTON UNIVERSITY · PI MORRIS, JOHN · 2005 to 2025
$49.5M
Washington University Institute of Clinical and Translational Sciences (UL1)UL1RR024992 · NCRR · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2007 to 2011
$45.4M
Washington University Institute of Clinical and Translational SciencesUL1TR000448 · NCATS · WASHINGTON UNIVERSITY · PI EVANOFF, BRADLEY A · 2012 to 2016
$41.4M
Washington University Nutrition Obesity Research CenterP30DK056341 · NIDDK · WASHINGTON UNIVERSITY · PI Dominic N Reeds · 1999 to 2026
$30.2M
WU P&FP30DK020579 · NIDDK · WASHINGTON UNIVERSITY · PI Clay F. Semenkovich · 2013 to 2026
$27.1M
TrainingP41GM103422 · NIGMS · WASHINGTON UNIVERSITY · PI YARASHESKI, KEVIN E · 2012 to 2019
$12.0M
CNS and Plasma Amyloid--Beta Kinetics in Alzheimer's DiseaseR01NS065667 · NINDS · WASHINGTON UNIVERSITY · PI BATEMAN, RANDALL J · 2008 to 2016
$4.6M
alphabeta AND PROTEOMIC ANALYSIS OF CSF IN AD AND AGINGK23AG030946 · NIA · WASHINGTON UNIVERSITY · PI BATEMAN, RANDALL J · 2007 to 2010
$754k
NCATS NIH HHS UL1 TR000448NCRR NIH HHS UL1 RR024992NIA NIH HHS K23 AG030946NIA NIH HHS K23AG030946NIA NIH HHS P01 AG003991NIA NIH HHS P01 AG026276NIA NIH HHS P50 AG005681NIA NIH HHS P50 AG05681NIA NIH HHS U24 AG021886NIDDK NIH HHS P30 DK020579NIDDK NIH HHS P30 DK056341NIGMS NIH HHS P01GM103422NIGMS NIH HHS P41 GM103422NINDS NIH HHS R01 NS065667NINDS NIH HHS R01NS065667
6 · The paper itself

Abstract

objectiveAge is the single greatest risk factor for Alzheimer's disease (AD), with the incidence doubling every 5 years after age 65. However, our understanding of the mechanistic relationship between increasing age and the risk for AD is currently limited. We therefore sought to determine the relationship between age, amyloidosis, and amyloid-beta (Aβ) kinetics in the central nervous system (CNS) of humans.

methodsAβ kinetics were analyzed in 112 participants and compared to the ages of participants and the amount of amyloid deposition.

resultsWe found a highly significant correlation between increasing age and slowed Aβ turnover rates (2.5-fold longer half-life over five decades of age). In addition, we found independent effects on Aβ42 kinetics specifically in participants with amyloid deposition. Amyloidosis was associated with a higher (>50%) irreversible loss of soluble Aβ42 and a 10-fold higher Aβ42 reversible exchange rate.

interpretationThese findings reveal a mechanistic link between human aging and the risk of amyloidosis, which may be owing to a dramatic slowing of Aβ turnover, increasing the likelihood of protein misfolding that leads to deposition. Alterations in Aβ kinetics associated with aging and amyloidosis suggest opportunities for diagnostic and therapeutic strategies. More generally, this study provides an example of how changes in protein turnover kinetics can be used to detect physiological and pathophysiological changes and may be applicable to other proteinopathies.

Indexed as

AdultAgedAged, 80 and overAgingAmyloid beta-PeptidesAmyloidosisCentral Nervous SystemFemaleHumansKineticsMaleMiddle AgedPeptide FragmentsAmyloid beta-Peptidesamyloid beta-protein (1-42)Peptide Fragments

Identifiers

PMID26040676
PMCPMC4546566
OpenAlexW2133541776

What OpenQuestion holds

Textmetadata
LicenceTDM
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.