Evidence map›Paper›PMID 32821291›Full record

ArticleTherapeutic advances in neurological disorders2020

Differential functional connectivity in thalamic and dopaminergic pathways in restless legs syndrome: a meta-analysis.

Thomas Derya Kocar, Hans-Peter Müller, Jan Kassubek

Open access · goldAbstract read
In one paragraph

Article in Therapeutic advances in neurological disorders, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.6field-weighted citation impact, top 9% 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

21 citing papers in PubMed, 30 citations in OpenAlex.

  1. Altered iron metabolism and iron therapy in restless legs syndrome.Journal of neural transmission (Vienna, Austria : 1996) · 2026
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  8. A Comparative Investigation of Functional Connectivity Utilizing Electroencephalography in Insomnia Patients with and without Restless Leg SyndromeClinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2024
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  9. Review
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  17. Restless legs syndrome.Nature reviews. Disease primers · 2021
    Review
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  20. [Small-world network of patients with primary insomnia: a resting-state functional magnetic resonance imaging study].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2021
    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

3 authors at 1 institution in 1 country.

Thomas Derya KocarDepartment of Neurology, University of Ulm, Ulm, Germany.
Hans-Peter MüllerDepartment of Neurology, University of Ulm, Ulm, Germany.
Jan KassubekDepartment of Neurology, University of Ulm, Oberer Eselsberg 45, Ulm, 89081, Germany.ORCID https://orcid.org/0000-0002-7106-9270
Universität Ulm · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveRestless legs syndrome (RLS) is a sensorimotor disorder with alterations in somatosensory processing in association with a dysfunctional cerebral network, involving the basal ganglia, limbic network, and sensorimotor pathways. Resting state functional magnetic resonance imaging (MRI) is a powerful tool to provide

methodsA systematic research using the online library PubMed was conducted and a total of seven studies passed the inclusion criteria of the meta-analysis. The results of these studies were merged and a statistical probability map was generated that indicated the likelihood of functional connectivity changes within the combined cohort, both for increased and decreased connectivity.

resultsThe meta-analysis demonstrated decreased functional connectivity within the dopaminergic network in participants with RLS compared with healthy controls, including the nigrostriatal, mesolimbic, and mesocortical pathways. Increased functional connectivity was observed bilaterally in the thalamus, including its ventral lateral, ventral anterior, and ventral posterior lateral nuclei, and the pulvinar. DISCUSSION: Sensorimotor dysfunction in RLS seems to be reflected by decreased functional connectivity within the dopaminergic pathways. Network extension in the thalamus can be regarded as an adaptation to somatosensory dysfunction in RLS. This differential functional connectivity pattern extends prior findings on cerebral somatosensory processing in RLS and offers an explanation for the efficacy of dopaminergic treatment.

Indexed as

magnetic resonance imaging (MRI)networksresting staterestless legs syndromethalamus

Identifiers

PMID32821291
PMCPMC7412904
OpenAlexW3047254650

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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.