Evidence map›Paper›PMID 33274526›Full record

ArticleAnnals of neurology2021

Lewy Body Disease is a Contributor to Logopenic Progressive Aphasia Phenotype.

Marina Buciuc, Jennifer L Whitwell, Koji Kasanuki, Jonathan Graff-Radford, Mary M Machulda, Joseph R Duffy, Edythe A Strand, Val J Lowe, Neill R Graff-Radford, Beth K Rush and 12 more

Open access · greenAbstract read
In one paragraph

Article in Annals of neurology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.3field-weighted citation impact, top 11% 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

23 citing papers in PubMed, 34 citations in OpenAlex.

  1. Plasma eMTBR-tau243 as a disease biomarker across Alzheimer's disease clinical phenotypes.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
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  2. Review
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  8. Clinicoradiological and neuropathological evaluation of primary progressive aphasia.Journal of neurology, neurosurgery, and psychiatry · 2024
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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

22 authors at 6 institutions in 2 countries.

Marina BuciucDepartment of Neurology, Mayo Clinic, Rochester, MN.ORCID 0000-0003-4826-5430
Jennifer L WhitwellDepartment of Radiology, Mayo Clinic, Rochester, MN.ORCID 0000-0001-6914-1563
Koji KasanukiDepartment of Neuroscience, Mayo Clinic, Jacksonville, FL.
Jonathan Graff-RadfordDepartment of Neurology, Mayo Clinic, Rochester, MN.ORCID 0000-0003-2770-0691
Mary M MachuldaDepartment of Psychiatry and Psychology, Mayo Clinic, Rochester, MN.
Joseph R DuffyDepartment of Neurology, Mayo Clinic, Rochester, MN.
Edythe A StrandDepartment of Neurology, Mayo Clinic, Rochester, MN.
Val J LoweDepartment of Radiology, Mayo Clinic, Rochester, MN.
Neill R Graff-RadfordDepartment of Neurology, Mayo Clinic, Jacksonville, FL.
Beth K RushDepartment of Psychiatry and Psychology, Mayo Clinic, Jacksonville, FL.
Malgorzata B FranczakDepartment of Neurology, Medical College of Wisconsin, Milwaukee, WI.
Margaret E FlanaganDepartment of Pathology, Cognitive Neurology and Alzheimer's Disease Center, Northwestern University Feinberg School of Medicine, Chicago, IL.
Matthew C BakerDepartment of Neuroscience, Mayo Clinic, Jacksonville, FL.
Rosa RademakersDepartment of Neuroscience, Mayo Clinic, Jacksonville, FL.
Owen A RossDepartment of Neuroscience, Mayo Clinic, Jacksonville, FL.ORCID 0000-0003-4813-756X
Bernardino F GhettiDepartment of Pathology & Laboratory Medicine, Indiana University, Indianapolis, IN.
Joseph E ParisiDepartment of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN.
Aditya RaghunathanDepartment of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN.
R Ross ReichardDepartment of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN.
Eileen H BigioDepartment of Pathology, Cognitive Neurology and Alzheimer's Disease Center, Northwestern University Feinberg School of Medicine, Chicago, IL.
Dennis W DicksonDepartment of Neuroscience, Mayo Clinic, Jacksonville, FL.ORCID 0000-0001-7189-7917
Keith A JosephsDepartment of Neurology, Mayo Clinic, Rochester, MN.ORCID 0000-0003-2930-8634
Mayo Clinic in Arizona · USJacksonville College · USNorthwestern University · USIndiana University Health · USMedical College of Wisconsin · USSt. Marianna University School of Medicine · JP

Funding

Neuropathology CoreP30AG013854 · NIA · NORTHWESTERN UNIVERSITY AT CHICAGO · PI BIGIO, EILEEN H. · 1996 to 2020
$28.9M
Molecular and structural imaging in atypical Alzheimer's disease: a longitudinal studyR01AG050603 · NIA · MAYO CLINIC ROCHESTER · PI WHITWELL, JENNIFER LOUISE · 2016 to 2025
$5.9M
PIB PET Scanning in Speech and Language Based DementiasR01DC010367 · NIDCD · MAYO CLINIC ROCHESTER · PI JOSEPHS, KEITH A · 2010 to 2014
$1.7M
nvestigating the role of neuroinflammation in Limbic-predominant age related TDP43 encephalopathyK08AG065463 · NIA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI FLANAGAN, MARGARET E · 2020 to 2024
$816k
Foundation for the National Institutes of Health R01-AG50603Foundation for the National Institutes of Health R01-DC10367 : R01-AG37491NIA NIH HHS K08 AG065463NIA NIH HHS P30 AG013854NIA NIH HHS R01 AG050603NIDCD NIH HHS R01 DC010367
6 · The paper itself

Abstract

objectiveThe objective of this study was to describe clinical features, [

methodsThis is a clinicopathologic case-control study of 45 patients, including 20 prospectively recruited patients with LPA among whom 6 were diagnosed with LPA-DLBD. We analyzed clinical features and compared FDG-PET metabolism in LPA-DLBD to an independent group of patients with clinical pDLB and regional α-synuclein burden on digital pathology to a second independent group of autopsied patients with DLBD pathology and antemortem pDLB (DLB-DLBD).

resultsAll patients with LPA-DLBD were men. Neurological, speech, and neuropsychological characteristics were similar across LPA-DLBD, LPA-Alzheimer's disease (LPA-AD), and LPA-frontotemporal lobar degeneration (LPA-FTLD). Genetic screening of AD, DLBD, and FTLD linked genes were negative with the exception of APOE ε4 allele present in 83% of LPA-DLBD patients. Seventy-five percent of the patients with LPA-DLBD showed a parietal-dominant pattern of hy pometabolism; LPA-FTLD - temporal-dominant pattern, whereas LPA-AD showed heterogeneous patterns of hypometabolism. LPA-DLBD had more asymmetrical hypometabolism affecting frontal lobes, with relatively spared occipital lobe in the nondominantly affected hemisphere, compared to pDLB. LPA-DLBD had minimal atrophy on gross brain examination, higher cortical Lewy body counts, and higher α-synuclein burden in the middle frontal and inferior parietal cortices compared to DLB-DLBD.

interpretationWhereas AD is the most frequent underlying pathology of LPA, DLBD can also be present and may contribute to the LPA phenotype possibly due to α-synuclein-associated functional impairment of the dominant parietal lobe. ANN NEUROL 2021;89:520-533.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseAphasia, Primary ProgressiveFemaleFluorodeoxyglucose F18Frontotemporal Lobar DegenerationHumansLanguage TestsLewy Body DiseaseMaleMiddle AgedPositron-Emission TomographyRadiopharmaceuticalsFluorodeoxyglucose F18Radiopharmaceuticals

Identifiers

PMID33274526
PMCPMC8040336
OpenAlexW3108589851

What OpenQuestion holds

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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.