Evidence map›Paper›PMID 28888720›Full record

ArticleNeurobiology of aging2017

Aged chimpanzees exhibit pathologic hallmarks of Alzheimer's disease.

Melissa K Edler, Chet C Sherwood, Richard S Meindl, William D Hopkins, John J Ely, Joseph M Erwin, Elliott J Mufson, Patrick R Hof, Mary Ann Raghanti

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of aging, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
84citing papers in PubMed, 1 pooled it
5.9field-weighted citation impact, top 3% 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

84 citing papers in PubMed, 1 synthesis or guideline pooled it, 135 citations in OpenAlex.

  1. Pooled it
  2. Aging brain lesions of a 60-year-old Bornean orangutan (Pongo pygmaeus).The Journal of veterinary medical science · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Brain and retina in Alzheimer's disease: Pathological intersections and estimates from imaging.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Review
  11. Article
  12. Article
  13. Review
  14. Research models to study lewy body dementia.Molecular neurodegeneration · 2025
    Review
  15. Review
  16. Article
  17. Review
  18. Article
  19. Amyloid-Beta, Tau, and Microglial Activation in Aged Felid Brains.The Journal of comparative neurology · 2024
    Article
  20. Review

24 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

9 authors at 7 institutions in 1 country.

Melissa K EdlerSchool of Biomedical Sciences, Kent State University, Kent, OH, USA; Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH, USA. Electronic address: medler@neomed.edu.
Chet C SherwoodDepartment of Anthropology and Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, DC, USA.
Richard S MeindlDepartment of Anthropology, Kent State University, Kent, OH, USA.
William D HopkinsDivision of Developmental and Cognitive Neuroscience, Yerkes National Primate Research Center, Atlanta, GA, USA; Neuroscience Institute, Georgia State University, Atlanta, GA, USA.
John J ElyMAEBIOS, Alamogordo, NM, USA.
Joseph M ErwinDepartment of Anthropology and Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, DC, USA.
Elliott J MufsonDepartments of Neurobiology and Neurology, Barrow Neurological Institute, Phoenix, AZ, USA.
Patrick R HofFishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; New York Consortium for Evolutionary Primatology, New York, NY, USA.
Mary Ann RaghantiSchool of Biomedical Sciences, Kent State University, Kent, OH, USA; Department of Anthropology, Kent State University, Kent, OH, USA.
George Washington University · USKent State University · USBarrow Neurological Institute · USGeorgia State University · USNew Mexico State University Alamogordo · USNew York Consortium in Evolutionary Primatology · USNortheast Ohio Medical University · US

Funding

TAU, AB, SYNUCLEIN AND NITRATIVE/OXIDATIVE DAMAGE IN MCIP01AG014449 · NIA · UNIVERSITY OF PITTSBURGH · PI IKONOMOVIC, MILOS D · 1997 to 2024
$39.7M
VESICULAR LOCALIZATION AND FUNCTION OF PRESENILIN 1 FRAGMENTP50AG005138 · NIA · MOUNT SINAI SCHOOL OF MEDICINE OF NYU · PI SCHIMMING, CORBETT · 1985 to 2019
$37.9M
Cellular and Molecular Medial Temporal Lobe Pathology in Elderly PreMCI subjectsR01AG043375 · NIA · ST. JOSEPH'S HOSPITAL AND MEDICAL CENTER · PI GINSBERG, STEPHEN D, MUFSON, ELLIOTT JAY · 2013 to 2017
$3.6M
Hemispheric Specialization and CommunicationR01NS042867 · NINDS · GEORGIA STATE UNIVERSITY · PI HOPKINS, WILLIAM D · 2002 to 2015
$3.3M
Heritability of Neuroanatomical Asymmetries in PrimatesR01NS073134 · NINDS · GEORGIA STATE UNIVERSITY · PI HOPKINS, WILLIAM D · 2011 to 2014
$1.2M
A National Chimpanzee Brain ResourceR24NS092988 · NINDS · GEORGE WASHINGTON UNIVERSITY · PI SHERWOOD, CHESTER · 2015 to 2018
$969k
COMPARATIVE NEUROBIOLOGY OF AGING RESOURCER44AG014308 · NIA · BIOQUAL, INC. · PI ERWIN, JOSEPH M · 1998 to 1999
–
NIA NIH HHS P01 AG014449NIA NIH HHS P50 AG005138NIA NIH HHS R01 AG043375NIA NIH HHS R44 AG014308NINDS NIH HHS R01 NS042867NINDS NIH HHS R01 NS073134NINDS NIH HHS R24 NS092988
6 · The paper itself

Abstract

Alzheimer's disease (AD) is a uniquely human brain disorder characterized by the accumulation of amyloid-beta protein (Aβ) into extracellular plaques, neurofibrillary tangles (NFT) made from intracellular, abnormally phosphorylated tau, and selective neuronal loss. We analyzed a large group of aged chimpanzees (n = 20, age 37-62 years) for evidence of Aβ and tau lesions in brain regions affected by AD in humans. Aβ was observed in plaques and blood vessels, and tau lesions were found in the form of pretangles, NFT, and tau-immunoreactive neuritic clusters. Aβ deposition was higher in vessels than in plaques and correlated with increases in tau lesions, suggesting that amyloid build-up in the brain's microvasculature precedes plaque formation in chimpanzees. Age was correlated to greater volumes of Aβ plaques and vessels. Tangle pathology was observed in individuals that exhibited plaques and moderate or severe cerebral amyloid angiopathy, a condition in which amyloid accumulates in the brain's vasculature. Amyloid and tau pathology in aged chimpanzees suggests these AD lesions are not specific to the human brain.

Indexed as

AgingAlzheimer DiseaseAmyloid beta-PeptidesAnimalsBrainFemaleHumansMaleNeurofibrillary TanglesPan troglodytestau ProteinsAmyloid beta-Peptidestau ProteinsAlzheimer's diseaseAmyloid-beta proteinChimpanzeeNeurofibrillary tanglePrimateTau

Identifiers

PMID28888720
PMCPMC6343147
OpenAlexW2741997618

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.