Evidence map›Paper›PMID 28321594›Full record

ArticleThe journal of headache and pain2017

Disrupted functional connectivity of periaqueductal gray subregions in episodic migraine.

Zhiye Chen, Xiaoyan Chen, Mengqi Liu, Shuangfeng Liu, Lin Ma, Shengyuan Yu

Open access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
6.4field-weighted citation impact, top 3% 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

49 citing papers in PubMed, 82 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 2 institutions in 1 country.

Zhiye ChenDepartment of Radiology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China.
Xiaoyan ChenDepartment of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China.
Mengqi LiuDepartment of Radiology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China.
Shuangfeng LiuDepartment of Radiology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China.
Lin MaDepartment of Radiology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China. cjr.malin@vip.163.com.
Shengyuan YuDepartment of Neurology, Chinese PLA General Hospital, 28 Fuxing Road, Beijing, 100853, China. yusy1963@126.com.
Chinese PLA General Hospital · CNHainan Branch of People's Liberation Army General Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe periaqueductal gray (PAG) dysfunction was recognized in migraine, and the altered dysfunction of PAG subregions were not totally detected up to now. The aim of this study is to investigate the altered functional connectivity of PAG subregions in EM patients.

methodsThe brain structural images and resting state functional MR imaging (rs-fMRI) data were obtained from 18 normal controls (NC) and 18 EM patients on 3.0 T MR system. Seven subregions of PAG were classified as bilateral ventrolateral PAG (vlPAG), lateral PAG (lPAG), dorsolateral PAG (dlPAG) and dorsomedial PAG (dmPAG). The functional connectivity maps of each PAG subregion were calculated, and Two sample t-test was applied with age and sex as covariables.

resultsBilateral vlPAG and left dlPAG presented decreased functional connectivity, and the other subregions (bilateral lPAGs, right dlPAG and dmPAG) showed no significant altered functional connectivity in EM compared with NC. The brain regions with decreased functional connectivity mainly located in bilateral prefrontal cortex(PFC), middle temporal gyrus, primary motor area (PMA) and supplementary motor area (SMA) and right ventrolateral PFC (vlPFC) in EM patients in this study. Disease duration was positively related to the functional connectivity of bilateral vlPAG on the bilateral thalamus and putamen, left pallidum and right medial orbitofrontal gyrus in EM patients.

conclusionThe present study suggested that the dysfunction of bilateral vlPAG and left dlPAG presented in EM, and functional evaluation of PAG subregions may be help for the diagnosis and understanding of EM pathogenesis.

Indexed as

Magnetic Resonance ImagingAdultBrainBrain MappingDominance, CerebralFemaleHumansMaleMiddle AgedMigraine DisordersPeriaqueductal GrayPrefrontal CortexSynaptic TransmissionEpisodic migraineFunctional connectivityMagnetic resonance imagingPeriaqueductal grayResting-state functional MRI

Identifiers

PMID28321594
PMCPMC5359195
OpenAlexW2597551020

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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.