Evidence map›Paper›PMID 32804102›Full record

ArticleJournal of Parkinson's disease2020

Gastric Motility in Parkinson's Disease is Altered Depending on the Digestive Phase and Does Not Correlate with Patient-Reported Motor Fluctuations.

Laura Ruck, Marcus M Unger, Jörg Spiegel, Jan Bürmann, Ulrich Dillmann, Klaus Faßbender, Wolfgang Reith, Martin Backens, Ruben Mühl-Benninghaus, Umut Yilmaz

Open access · bronzeAbstract read
In one paragraph

Article in Journal of Parkinson's disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
0.3field-weighted citation impact, top 39% 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

1 citing paper in PubMed, 5 citations in OpenAlex.

  1. Article
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

10 authors at 1 institution in 1 country.

Laura RuckDepartment of Neurology, Saarland University, Kirrberger Strasse, Homburg, Germany.
Marcus M UngerDepartment of Neurology, Saarland University, Kirrberger Strasse, Homburg, Germany.
Jörg SpiegelDepartment of Neurology, Saarland University, Kirrberger Strasse, Homburg, Germany.
Jan BürmannDepartment of Neurology, Saarland University, Kirrberger Strasse, Homburg, Germany.
Ulrich DillmannDepartment of Neurology, Saarland University, Kirrberger Strasse, Homburg, Germany.
Klaus FaßbenderDepartment of Neurology, Saarland University, Kirrberger Strasse, Homburg, Germany.
Wolfgang ReithDepartment of Neuroradiology, Saarland University, Kirrberger Strasse, Homburg, Germany.
Martin BackensDepartment of Neuroradiology, Saarland University, Kirrberger Strasse, Homburg, Germany.
Ruben Mühl-BenninghausDepartment of Neuroradiology, Saarland University, Kirrberger Strasse, Homburg, Germany.
Umut YilmazDepartment of Neuroradiology, Saarland University, Kirrberger Strasse, Homburg, Germany.
Saarland University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAltered gastric motility is a frequent non-motor symptom of Parkinson's disease (PD). It has been hypothesized that disturbed gastric motility contributes to motor fluctuations in PD due to an erratic gastro-duodenal transport and an unpredictable absorption of drugs.

objectiveWe investigated whether patient-reported fluctuations are associated with parameters of gastric motility visualized by real-time magnetic resonance imaging (MRI) of the stomach.

methodsWe analyzed real-time MRI-scans of the stomach after an overnight fasting period in 16 PD patients and 20 controls. MRI was performed 1) in the fasting state, 2) directly after a test meal, and 3) 4 hours postprandially. Gastric motility indices were calculated and compared between groups.

resultsMRI showed an attenuated gastric motility in PD patients compared to controls. The difference was most obvious in the early postprandial phase. Gastric motility was not associated with patient-reported motor fluctuations. Using an iron-containing capsule we were able to retrace retention of drugs in the stomach.

conclusionThe results of this study stress the importance of considering the phase of digestion when investigating gastric motility in PD. Despite theoretical considerations, we did not find robust evidence for an association between MRI parameters of gastric motility and patient-reported motor fluctuations. For future studies that aim to investigate gastric motility in PD by MRI, we suggest multiple short-time MRIs to better track the whole gastro-duodenal phase in PD. Such an approach would also allow to retrace the retention of drugs in the stomach as shown by our approach using an iron-containing capsule.

Indexed as

Diagnostic Self EvaluationAdultAgedFemaleGastrointestinal MotilityHumansMagnetic Resonance ImagingMaleMiddle AgedParkinson DiseaseStomach Diseasesgastrointestinal motilityParkinson’s diseasereal-time magnetic resonance imagingstomach

Identifiers

PMID32804102
PMCPMC7683086
OpenAlexW3048629674

What OpenQuestion holds

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LicenceCC BY-NC
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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.