Evidence map›Paper›PMID 29353541›Full record

ArticleMolecular pain

Volumetric abnormalities of the brain in a rat model of recurrent headache.

Zhihua Jia, Wenjing Tang, Dengfa Zhao, Guanqun Hu, Ruisheng Li, Shengyuan Yu

Open access · goldAbstract read
In one paragraph

Article in Molecular pain. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.5field-weighted citation impact, top 36% 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

5 citing papers in PubMed, 6 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.

Zhihua Jia1 Department of Neurology, Chinese PLA General Hospital, Beijing, China.
Wenjing Tang1 Department of Neurology, Chinese PLA General Hospital, Beijing, China.
Dengfa Zhao1 Department of Neurology, Chinese PLA General Hospital, Beijing, China.
Guanqun Hu1 Department of Neurology, Chinese PLA General Hospital, Beijing, China.
Ruisheng Li2 Research Center for Clinical and Translational Medicine, 302 Hospital of PLA, Beijing, China.
Shengyuan Yu1 Department of Neurology, Chinese PLA General Hospital, Beijing, China.
Chinese PLA General Hospital · CN302 Military Hospital of China · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Voxel-based morphometry is used to detect structural brain changes in patients with migraine. However, the relevance of migraine and structural changes is not clear. This study investigated structural brain abnormalities based on voxel-based morphometry using a rat model of recurrent headache. The rat model was established by infusing an inflammatory soup through supradural catheters in conscious male rats. Rats were subgrouped according to the frequency and duration of the inflammatory soup infusion. Tactile sensory testing was conducted prior to infusion of the inflammatory soup or saline. The periorbital tactile thresholds in the high-frequency inflammatory soup stimulation group declined persistently from day 5. Increased white matter volume was observed in the rats three weeks after inflammatory soup stimulation, brainstem in the in the low-frequency inflammatory soup-infusion group and cortex in the high-frequency inflammatory soup-infusion group. After six weeks' stimulation, rats showed gray matter volume changes. The brain structural abnormalities recovered after the stimulation was stopped in the low-frequency inflammatory soup-infused rats and persisted even after the high-frequency inflammatory soup stimulus stopped. The changes of voxel-based morphometry in migraineurs may be the result of recurrent headache. Cognition, memory, and learning may play an important role in the chronification of migraines. Reducing migraine attacks has the promise of preventing chronicity of migraine.

Indexed as

AnimalsBrainDisease Models, AnimalGray MatterHeadacheMagnetic Resonance ImagingMaleOrgan SizeRats, Sprague-DawleyRecurrenceSensory ThresholdsTouchWhite Matterchronificationcutaneous allodyniaMigrainevoxel-based morphometry

Identifiers

PMID29353541
PMCPMC6879737
OpenAlexW2786745297

What OpenQuestion holds

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LicenceCC BY-NC
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Registered trials

None linked

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.