Evidence map›Paper›PMID 35485481›Full record

ArticleSleep2022

Structural brain connectivity in patients with restless legs syndrome: a diffusion tensor imaging study.

Kang Min Park, Keun Tae Kim, Dong Ah Lee, Yong Won Cho

Abstract read
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In one paragraph

Article in Sleep, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
3.1field-weighted citation impact, top 8% 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

9 citing papers in PubMed, 20 citations in OpenAlex.

  1. Beyond the Homunculus-SCAN-AMN as a Shared Action-Oriented Neural Substrate across Movement Disorders.Movement disorders : official journal of the Movement Disorder Society · 2026
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Kang Min ParkDepartment of Neurology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea.
Keun Tae KimDepartment of Neurology, Keimyung University School of Medicine, Daegu, South Korea.
Dong Ah LeeDepartment of Neurology, Haeundae Paik Hospital, Inje University College of Medicine, Busan, South Korea.
Yong Won ChoDepartment of Neurology, Keimyung University School of Medicine, Daegu, South Korea.ORCID 0000-0002-6127-1045
Inje University Haeundae Paik Hospital · KRKeimyung University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

objectivesTo evaluate alterations of global and local structural brain connectivity in patients with restless legs syndrome (RLS).

methodsPatients with primary RLS and healthy controls were recruited at a sleep center where they underwent diffusion tensor imaging (DTI) of the brain. We calculated the network measures of global and local structural brain connectivity based on the DTI in both groups using DSI studio program and a graph theory.

resultsA total of 69 patients with primary RLS and 51 healthy controls were included in the study. We found a significant difference in the global structural connectivity between the groups. The transitivity in the patients with RLS was lower than that in healthy controls (0.031 vs. 0.033, p = 0.035). Additionally, there were significant differences in the local structural connectivity between the groups. The characteristic path length (r = 0.283, p = 0.018), radius of graph (r = 0.260, p = 0.030), and diameter of graph (r = 0.280, p = 0.019) were all positively correlated with RLS severity, whereas the mean clustering coefficient (r = -0.327, p = 0.006), global efficiency (r = -0.272, p = 0.023), small-worldness index (r = -0.325, p = 0.006), and transitivity (r = -0.351, p = 0.003) were negatively correlated with RLS severity.

conclusionWe identified changes in the global structural connectivity of patients with RLS using graph theory based on DTI, which showed decreased segregation in the brain network compared to healthy controls. These changes are well correlated with RLS severity. We also found changes in local structural connectivity, especially in regions involved in sensorimotor function, which suggests that these areas play a pivotal role in RLS. These findings contribute to a better understanding of the pathophysiology of RLS symptoms.

Indexed as

Diffusion Tensor ImagingRestless Legs SyndromeBrainBrain MappingCluster AnalysisHumansbraindiffusion tensor imagingrestless legs syndrome

Identifiers

PMID35485481
OpenAlexW4225126575

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.