Evidence map›Paper›PMID 37212074›Full record

ArticleJournal of Parkinson's disease2023

Dopaminergic Dysfunction Is More Symmetric in Dementia with Lewy Bodies Compared to Parkinson's Disease.

Tatyana Dmitrievna Fedorova, Karoline Knudsen, Jacob Horsager, Allan K Hansen, Niels Okkels, Hanne Gottrup, Kim Vang, Per Borghammer

Open access · diamondAbstract read
In one paragraph

Article in Journal of Parkinson's disease, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
4.7field-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

19 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
  2. Article
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  4. Is motor asymmetry a predictor of non-motor outcomes in Parkinson's disease?Journal of neural transmission (Vienna, Austria : 1996) · 2026
    Review
  5. Article
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  10. Review
  11. [PCN reports : psychiatry and clinical neurosciences · 2025
    Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Approaches to Early Parkinson's Disease Subtyping.Journal of Parkinson's disease · 2024
    Review
  18. Review
  19. Review
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

8 authors at 3 institutions in 1 country.

Tatyana Dmitrievna FedorovaDepartment of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus, Denmark.
Karoline KnudsenDepartment of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus, Denmark.
Jacob HorsagerDepartment of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus, Denmark.
Allan K HansenDepartment of Nuclear Medicine and PET Centre, Aalborg University Hospital, Aalborg, Denmark.
Niels OkkelsDepartment of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus, Denmark.
Hanne GottrupDepartment of Neurology, Aarhus University Hospital, Aarhus, Denmark.
Kim VangDepartment of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus, Denmark.
Per BorghammerDepartment of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus, Denmark.
Aarhus University Hospital · DKAarhus University · DKAalborg University Hospital · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe α-syn Origin site and Connectome model (SOC) proposes that α-synucleinopathies can be divided into two categories: the asymmetrical brain-first, and more symmetrical body-first Lewy body disease. We have hypothesized that most patients with dementia with Lewy bodies (DLB) belong to the body-first subtype, whereas patients with Parkinson's disease (PD) more often belong to the brain-first subtype.

objectiveTo compare asymmetry of striatal dopaminergic dysfunction in DLB and PD patients using [18F]-FE-PE2I positron emission tomography (PET).

methodsWe analyzed [18F]-FE-PE2I PET data from 29 DLB patients and 76 PD patients who were identified retrospectively during a 5-year period at Dept. of Neurology, Aarhus University Hospital. Additionally, imaging data from 34 healthy controls was used for age-correction and visual comparison.

resultsPD patients showed significantly more asymmetry in specific binding ratios between the most and least affected putamen (p < 0.0001) and caudate (p = 0.003) compared to DLB patients. PD patients also had more severe degeneration in the putamen compared to the caudate in comparison to DLB patients (p < 0.0001) who had a more universal pattern of striatal degeneration.

conclusionPatients with DLB show significantly more symmetric striatal degeneration on average compared to PD patients. These results support the hypothesis that DLB patients may be more likely to conform to the body-first subtype characterized by a symmetrical spread of pathology, whereas PD patients may be more likely to conform to the brain-first subtype with more lateralized initial propagation of pathology.

Indexed as

Lewy Body DiseaseParkinson DiseaseCorpus StriatumDopamineHumansLewy BodiesRetrospective StudiesDopaminedopaminergic imaginglewy body dementiaLewy body diseaseParkinson’s diseasepositron emission tomography computed tomography

Identifiers

PMID37212074
PMCPMC10357144
OpenAlexW4377091026

What OpenQuestion holds

Textmetadata
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.