Evidence map›Paper›PMID 35274368›Full record

ArticleMovement disorders : official journal of the Movement Disorder Society2022

Gastrointestinal Symptoms and Dopamine Transporter Asymmetry in Early Parkinson's Disease.

Kirsi Murtomäki, Tuomas Mertsalmi, Elina Jaakkola, Elina Mäkinen, Reeta Levo, Tanja Nojonen, Mikael Eklund, Simo Nuuttila, Kari Lindholm, Eero Pekkonen and 5 more

Abstract read
In one paragraph

Article in Movement disorders : official journal of the Movement Disorder Society, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Increased frontal [NPJ Parkinson's disease · 2025
    Article
  6. Article
  7. Article
  8. 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

15 authors.

Kirsi MurtomäkiDepartment of Neurology, Helsinki University Hospital, and Clinicum, University of Helsinki, Helsinki, Finland.ORCID 0000-0001-5759-1911
Tuomas MertsalmiDepartment of Neurology, Helsinki University Hospital, and Clinicum, University of Helsinki, Helsinki, Finland.
Elina JaakkolaClinical Neurosciences, University of Turku, and Neurocenter, Turku University Hospital, Turku, Finland.ORCID 0000-0002-8003-1346
Elina MäkinenDepartment of Neurology, Helsinki University Hospital, and Clinicum, University of Helsinki, Helsinki, Finland.ORCID 0000-0001-7591-1990
Reeta LevoDepartment of Neurology, Helsinki University Hospital, and Clinicum, University of Helsinki, Helsinki, Finland.
Tanja NojonenDepartment of Neurology, Helsinki University Hospital, and Clinicum, University of Helsinki, Helsinki, Finland.
Mikael EklundClinical Neurosciences, University of Turku, and Neurocenter, Turku University Hospital, Turku, Finland.
Simo NuuttilaClinical Neurosciences, University of Turku, and Neurocenter, Turku University Hospital, Turku, Finland.ORCID 0000-0002-1749-7936
Kari LindholmClinical Neurosciences, University of Turku, and Neurocenter, Turku University Hospital, Turku, Finland.
Eero PekkonenDepartment of Neurology, Helsinki University Hospital, and Clinicum, University of Helsinki, Helsinki, Finland.
Juho JoutsaClinical Neurosciences, University of Turku, and Neurocenter, Turku University Hospital, Turku, Finland.
Tommi NoponenDepartment of Clinical Physiology and Nuclear Medicine, Department of Medical Physics, Turku University Hospital, Turku, Finland.
Toni IhalainenHUS Medical Imaging Center, Clinical Physiology and Nuclear Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.
Valtteri KaasinenClinical Neurosciences, University of Turku, and Neurocenter, Turku University Hospital, Turku, Finland.ORCID 0000-0002-3446-7093
Filip ScheperjansDepartment of Neurology, Helsinki University Hospital, and Clinicum, University of Helsinki, Helsinki, Finland.ORCID 0000-0001-9502-7131

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe neurophysiological correlates of gastrointestinal symptoms (GISs) in Parkinson's disease (PD) are not well understood. It has been proposed that in patients with a gastrointestinal origin of PD dopaminergic neurodegeneration would be more symmetric.

objectivesThe aim is to assess the associations between GISs and asymmetry of nigrostriatal dopaminergic neurodegeneration in PD.

methodsNinety PD patients were assessed using motor and GIS scales and

resultsThere were no significant differences in GISs between symmetric and asymmetric dopaminergic defect. Left predominant defect was related to more GIS and higher constipation scores.

conclusionsGISs were associated with left predominant reduction in putaminal DAT binding but not asymmetry per se. It remains open whether left-sided DAT deficit is related to more pronounced GI involvement or symptom perception in PD. © 2022 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson Movement Disorder Society.

Indexed as

Dopamine Plasma Membrane Transport ProteinsParkinson DiseaseCorpus StriatumDopamineHumansTomography, Emission-Computed, Single-PhotonTropanesDopamineDopamine Plasma Membrane Transport ProteinsTropanesParkinson's diseasegastrointestinal symptomsdopamine transporter

Identifiers

PMID35274368
PMCPMC9314058

What OpenQuestion holds

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Registered trials

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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.