Evidence map›Paper›PMID 21516511›Full record

ReviewActa neuropathologica2011

Alzheimer's disease is not "brain aging": neuropathological, genetic, and epidemiological human studies.

Peter T Nelson, Elizabeth Head, Frederick A Schmitt, Paulina R Davis, Janna H Neltner, Gregory A Jicha, Erin L Abner, Charles D Smith, Linda J Van Eldik, Richard J Kryscio and 1 more

Open access · greenAbstract readReview
In one paragraph

Review in Acta neuropathologica, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 186 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
186citing papers in PubMed, 2 pooled it
17.0field-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

186 citing papers in PubMed, 2 syntheses or guidelines pooled it, 356 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Article
  7. Article
  8. Hippocampal grey matter changes across scales in Alzheimer's Disease.bioRxiv : the preprint server for biology · 2025
    Article
  9. A Machine-Learning Approach Identifies Rejuvenating Interventions in the Human Brain.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
  10. Review
  11. Review
  12. Age and sex are associated with Alzheimer's disease neuropathology in Down syndrome.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  13. Plasma NfL and GFAP for predicting VCI and related brain changes in community and clinical cohorts.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
  14. Review
  15. Article
  16. Review
  17. Cognitive Decline in Alzheimer's Disease.Current topics in behavioral neurosciences · 2025
    Review
  18. Article
  19. Neuroglia in cognitive reserve.Molecular psychiatry · 2024
    Review
  20. Review

126 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

11 authors at 1 institution in 1 country.

Peter T NelsonDepartment of Pathology, University of Kentucky, Lexington, KY 40536-0230, USA. pnels2@email.uky.edu
Elizabeth Head
Frederick A Schmitt
Paulina R Davis
Janna H Neltner
Gregory A Jicha
Erin L Abner
Charles D Smith
Linda J Van Eldik
Richard J Kryscio
Stephen W Scheff
University of Kentucky · US

Funding

NATIONAL ALZHEIMERS COORDINATING CENTER (NACC)U01AG016976 · NIA · UNIVERSITY OF WASHINGTON · PI KUKULL, WALTER ANTHONY · 1999 to 2020
$72.8M
University of Kentucky Alzheimer's Disease Core Center - Biomarker CoreP30AG028383 · NIA · UNIVERSITY OF KENTUCKY · PI GOLD, BRIAN TIMOTHY, VAN ELDIK, LINDA J · 2006 to 2020
$23.3M
A specific microRNA (Mir-107) is a potential therapeutic target in Alzheimer's diR01NS061933 · NINDS · UNIVERSITY OF KENTUCKY · PI NELSON, PETER T. · 2008 to 2011
$1.3M
Alpha-synuclein mRNA is a putative microRNA targetK08NS050110 · NINDS · UNIVERSITY OF PENNSYLVANIA · PI NELSON, PETER T. · 2005 to 2009
$863k
NIA NIH HHS P30 AG028383NIA NIH HHS U01 AG016976NICHD NIH HHS HHSN275200900011CNINDS NIH HHS K08 NS050110NINDS NIH HHS R01 NS061933
6 · The paper itself

Abstract

Human studies are reviewed concerning whether "aging"-related mechanisms contribute to Alzheimer's disease (AD) pathogenesis. AD is defined by specific neuropathology: neuritic amyloid plaques and neocortical neurofibrillary tangles. AD pathology is driven by genetic factors related not to aging per se, but instead to the amyloid precursor protein (APP). In contrast to genes involved in APP-related mechanisms, there is no firm connection between genes implicated in human "accelerated aging" diseases (progerias) and AD. The epidemiology of AD in advanced age is highly relevant but deceptively challenging to address given the low autopsy rates in most countries. In extreme old age, brain diseases other than AD approximate AD prevalence while the impact of AD pathology appears to peak by age 95 and decline thereafter. Many distinct brain diseases other than AD afflict older human brains and contribute to cognitive impairment. Additional prevalent pathologies include cerebrovascular disease and hippocampal sclerosis, both high-morbidity brain diseases that appear to peak in incidence later than AD chronologically. Because of these common brain diseases of extreme old age, the epidemiology differs between clinical "dementia" and the subset of dementia cases with AD pathology. Additional aging-associated mechanisms for cognitive decline such as diabetes and synapse loss have been linked to AD and these hypotheses are discussed. Criteria are proposed to define an "aging-linked" disease, and AD fails all of these criteria. In conclusion, it may be most fruitful to focus attention on specific pathways involved in AD rather than attributing it to an inevitable consequence of aging.

Indexed as

AgedAged, 80 and overAgingAlzheimer DiseaseBrainGenetic Predisposition to DiseaseHumansNeuronsRisk Factors

Identifiers

PMID21516511
PMCPMC3179861
OpenAlexW1975216966

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.