Evidence map›Paper›PMID 30626318›Full record

ArticleThe journal of headache and pain2019

Abnormal functional connectivity under somatosensory stimulation in migraine: a multi-frequency magnetoencephalography study.

Jing Ren, Jing Xiang, Yueqiu Chen, Feng Li, Ting Wu, Jingping Shi

Registry-linked trialOpen access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT00600717 (Localizing Functional Brain Cortices and Epileptogenic Zones With High Frequency Brain Signals), which is not on this map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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.

NCT00600717 withdrawnnot on this map

Localizing Functional Brain Cortices and Epileptogenic Zones With High Frequency Brain Signals

TypeobservationalSponsorChildren's Hospital Medical Center, CincinnatiRan2000 to 2027Enrolled0ConditionsEpilepsy, Migraine, Headache, Pain
3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

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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

6 authors at 3 institutions in 2 countries.

Jing RenDepartment of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
Jing XiangMEG Center, Division of Neurology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45220, USA.
Yueqiu ChenDepartment of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
Feng LiDepartment of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China.
Ting WuMEG Center, Nanjing Brain Hospital, Nanjing, 210029, Jiangsu, China.
Jingping ShiDepartment of Neurology, The Affiliated Brain Hospital of Nanjing Medical University, Nanjing, 210029, Jiangsu, China. profshijp@163.com.
Nanjing Medical University · CNNanjing Brain Hospital · CNCincinnati Children's Hospital Medical Center · US

Funding

Natural Science Foundation of Jiangsu Province, People's Republic of China No.BK20151088
6 · The paper itself

Abstract

backgroundAlthough altered neural networks have been demonstrated in recent MEG (magnetoencephalography) research in migraine patients during resting state, it is unknown whether this alteration can be detected in task-related networks. The present study aimed to investigate the abnormalities of the frequency-specific somatosensory-related network in migraine patients by using MEG.

methodsTwenty-two migraineurs in the interictal phase and twenty-two sex- and age-matched healthy volunteers were studied using a whole-head magnetoencephalography (MEG) system. Electrical stimuli were delivered alternately to the median nerve on the right wrists of all subjects. MEG data were analyzed in a frequency range of 1-1000 Hz in multiple bands.

resultsThe brain network patterns revealed that the patients with migraine exhibited remarkably increased functional connectivity in the high-frequency (250-1000 Hz) band between the sensory cortex and the frontal lobe. The results of quantitative analysis of graph theory showed that the patients had (1) an increased degree of connectivity in the theta (4-8 Hz), beta (13-30 Hz) and gamma (30-80 Hz) bands; (2) an increased connectivity strength in the beta (13-30 Hz) and gamma (30-80 Hz) bands; (3) an increased path length in the beta (13-30 Hz), gamma (30-80 Hz) and ripple (80-250 Hz) bands; and (4) an increased clustering coefficient in the theta (4-8 Hz), beta (13-30 Hz) and gamma (30-80 Hz) bands.

conclusionsThe results indicate that migraine is associated with aberrant connections from the somatosensory cortex to the frontal lobe. The frequency-specific increases in connectivity in terms of strength, path length and clustering coefficients support the notion that migraineurs have elevated cortical networks. This alteration in functional connectivity may be involved in somatosensory processing in migraine patients and may contribute to understanding migraine pathophysiology and to providing convincing evidence for a spatially targeted migraine therapy.

Indexed as

AdultBrainBrain MappingFemaleHumansMagnetoencephalographyMaleMigraine DisordersNerve NetSomatosensory CortexYoung AdultFunctional connectivityMagnetoencephalographyMigraineMulti-frequencySomatosensory

Identifiers

PMID30626318
PMCPMC6734310
OpenAlexW2917333237

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.