Evidence map›Paper›PMID 31237877›Full record

ArticlePloS one2019

Faster cognitive decline in dementia due to Alzheimer disease with clinically undiagnosed Lewy body disease.

Michael Malek-Ahmadi, Thomas G Beach, Edward Zamrini, Charles H Adler, Marwan N Sabbagh, Holly A Shill, Sandra A Jacobson, Christine M Belden, Richard J Caselli, Brian K Woodruff and 26 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
6.4field-weighted citation impact, top 4% 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

43 citing papers in PubMed, 62 citations in OpenAlex.

  1. Review
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  7. Celebrating neuropathology's contributions to Alzheimer's Disease Research Centers.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
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  12. Characterizing visual read tau-PET-negative participants with Alzheimer's disease dementia.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Article
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  18. Review
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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

36 authors at 7 institutions in 3 countries.

Michael Malek-AhmadiBanner Alzheimer Institute, Phoenix, Arizona, United States of America.ORCID 0000-0001-9901-3650
Thomas G BeachBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Edward ZamriniBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Charles H AdlerDepartment of Neurology, Mayo Clinic, Scottsdale, Arizona, United States of America.
Marwan N SabbaghCleveland Clinic Lou Ruvo Center for Brain Health, Las Vegas, Nevada, United States of America.
Holly A ShillBarrow Neurological Institute, Phoenix, Arizona, United States of America.
Sandra A JacobsonBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Christine M BeldenBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Richard J CaselliDepartment of Neurology, Mayo Clinic, Scottsdale, Arizona, United States of America.
Brian K WoodruffDepartment of Neurology, Mayo Clinic, Scottsdale, Arizona, United States of America.
Steven Z RapscakDepartment of Neurology, University of Arizona, Tucson, Arizona, United States of America.
Geoffrey L AhernDepartment of Neurology, University of Arizona, Tucson, Arizona, United States of America.
Jiong ShiMolecular Neuroscience Research Center, Shiga University of Medical Science, Otsu, Japan.
John N CavinessDepartment of Neurology, Mayo Clinic, Scottsdale, Arizona, United States of America.
Erika Driver-DunckleyDepartment of Neurology, Mayo Clinic, Scottsdale, Arizona, United States of America.
Shyamal H MehtaDepartment of Neurology, Mayo Clinic, Scottsdale, Arizona, United States of America.
David R ShprecherBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Bryan M SpannBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Pierre TariotBanner Alzheimer Institute, Phoenix, Arizona, United States of America.
Kathryn J DavisBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Kathy E LongBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Lisa R NicholsonBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Anthony IntorciaBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Michael J GlassBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Jessica E WalkerBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Michael CallanBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Jasmine CurryBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Brett CutlerBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Javon OliverBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Richard ArceBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Douglas G WalkerMolecular Neuroscience Research Center, Shiga University of Medical Science, Otsu, Japan.
Lih-Fen LueBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Geidy E SerranoBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Lucia I SueBanner Sun Health Research Institute, Sun City, Arizona, United States of America.
Kewei ChenBanner Alzheimer Institute, Phoenix, Arizona, United States of America.
Eric M ReimanBanner Alzheimer Institute, Phoenix, Arizona, United States of America.
Banner Sun Health Research Institute · USMayo Clinic in Arizona · USBanner Alzheimer’s InstituteUniversity of Arizona · USShiga University of Medical Science · JPBarrow Neurological Institute · USCleveland Clinic · US

Funding

Research Education ComponentP30AG019610 · NIA · SUN HEALTH RESEARCH INSTITUTE · PI GONZALEZ HERNANDEZ, GRACIELA · 2001 to 2020
$32.5M
National Brain and Tissue Resource for Parkinson's Disease and Related DisordersU24NS072026 · NINDS · BANNER SUN HEALTH RESEARCH INSTITUTE · PI BEACH, THOMAS G · 2011 to 2015
$7.8M
NIA NIH HHS P30 AG019610NINDS NIH HHS U24 NS072026
6 · The paper itself

Abstract

backgroundNeuropathology has demonstrated a high rate of comorbid pathology in dementia due to Alzheimer's disease (ADD). The most common major comorbidity is Lewy body disease (LBD), either as dementia with Lewy bodies (AD-DLB) or Alzheimer's disease with Lewy bodies (AD-LB), the latter representing subjects with ADD and LBD not meeting neuropathological distribution and density thresholds for DLB. Although it has been established that ADD subjects with undifferentiated LBD have a more rapid cognitive decline than those with ADD alone, it is still unknown whether AD-LB subjects, who represent the majority of LBD and approximately one-third of all those with ADD, have a different clinical course.

methodsSubjects with dementia included those with "pure" ADD (n = 137), AD-DLB (n = 64) and AD-LB (n = 114), all with two or more complete Mini Mental State Examinations (MMSE) and a full neuropathological examination.

resultsLinear mixed models assessing MMSE change showed that the AD-LB group had significantly greater decline compared to the ADD group (β = -0.69, 95% CI: -1.05, -0.33, p<0.001) while the AD-DLB group did not (β = -0.30, 95% CI: -0.73, 0.14, p = 0.18). Of those with AD-DLB and AD-LB, only 66% and 2.1%, respectively, had been diagnosed with LBD at any point during their clinical course. Compared with clinically-diagnosed AD-DLB subjects, those that were clinically undetected had significantly lower prevalences of parkinsonism (p = 0.046), visual hallucinations (p = 0.0008) and dream enactment behavior (0.013).

conclusionsThe probable cause of LBD clinical detection failure is the lack of a sufficient set of characteristic core clinical features. Core DLB clinical features were not more common in AD-LB as compared to ADD. Clinical identification of ADD with LBD would allow stratified analyses of ADD clinical trials, potentially improving the probability of trial success.

Indexed as

AgedAlzheimer DiseaseCognitive DysfunctionDementiaFemaleHumansKaplan-Meier EstimateLewy Body DiseaseMalePrevalence

Identifiers

PMID31237877
PMCPMC6592515
OpenAlexW2955818467

What OpenQuestion holds

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LicenceCC BY
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.