Evidence map›Paper›PMID 33395413›Full record

ArticlePloS one2021

Ictal and interictal brain activation in episodic migraine: Neural basis for extent of allodynia.

Nasim Maleki, Edina Szabo, Lino Becerra, Eric Moulton, Steven J Scrivani, Rami Burstein, David Borsook

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 3 pooled it
4.7field-weighted citation impact, top 4% 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, 3 syntheses or guidelines pooled it, 39 citations in OpenAlex.

  1. Human assumed central sensitization in interictal migraine: a systematic review and meta-analysis.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2026
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  15. Altered anterior insula functional connectivity in adolescent and young women with endometriosis-associated pain: Pilot resting-state fMRI study.European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society · 2022
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  16. Article
  17. Involvement of the cerebellum in migraine.Frontiers in systems neuroscience · 2022
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  20. Cerebro-Cerebellar Networks in Migraine Symptoms and Headache.Frontiers in pain research (Lausanne, Switzerland) · 2022
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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

7 authors at 3 institutions in 1 country.

Nasim MalekiCenter for Pain and the Brain (PAIN Research Group), Boston, MA, United States of America.
Edina SzaboCenter for Pain and the Brain (PAIN Research Group), Boston, MA, United States of America.ORCID 0000-0003-4087-5373
Lino BecerraCenter for Pain and the Brain (PAIN Research Group), Boston, MA, United States of America.
Eric MoultonCenter for Pain and the Brain (PAIN Research Group), Boston, MA, United States of America.
Steven J ScrivaniCenter for Pain and the Brain (PAIN Research Group), Boston, MA, United States of America.
Rami BursteinDepartment of Anesthesia and Critical Care, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States of America.
David BorsookCenter for Pain and the Brain (PAIN Research Group), Boston, MA, United States of America.
Boston Children's Hospital · USBeth Israel Deaconess Medical Center · USTufts University · US

Funding

Brain Markers of Low and High Frequency Episodic MigraineR01NS073997 · NINDS · MCLEAN HOSPITAL · PI BORSOOK, DAVID · 2011 to 2015
$2.0M
Imaging Pain and Analgesia: Mentoring in Basic and Applied ResearchK24NS064050 · NINDS · MCLEAN HOSPITAL · PI BORSOOK, DAVID · 2008 to 2017
$1.7M
NINDS NIH HHS K24 NS064050NINDS NIH HHS R01 NS073997
6 · The paper itself

Abstract

In some patients, migraine attacks are associated with symptoms of allodynia which can be localized (cephalic) or generalized (extracephalic). Using functional neuroimaging and cutaneous thermal stimulation, we aimed to investigate the differences in brain activation of patients with episodic migraine (n = 19) based on their allodynic status defined by changes between ictal and interictal pain tolerance threshold for each subject at the time of imaging. In this prospective imaging study, differences were found in brain activity between the ictal and interictal visits in the brainstem/pons, thalamus, insula, cerebellum and cingulate cortex. Significant differences were also observed in the pattern of activation along the trigeminal pathway to noxious heat stimuli in no allodynia vs. generalized allodynia in the thalamus and the trigeminal nucleus but there were no activation differences in the trigeminal ganglion. The functional magnetic resonance imaging (fMRI) findings provide direct evidence for the view that in migraine patients who are allodynic during the ictal phase of their attacks, the spinal trigeminal nucleus and posterior thalamus become hyper-responsive (sensitized)-to the extent that they mediate cephalic and extracephalic allodynia, respectively. In addition, descending analgesic systems seem as "switched off" in generalized allodynia.

Indexed as

AdultBrainBrain MappingFemaleGyrus CinguliHumansHyperalgesiaImage Processing, Computer-AssistedInterviews as TopicMagnetic Resonance ImagingMaleMiddle AgedMigraine DisordersPain ThresholdProspective StudiesTemperature

Identifiers

PMID33395413
PMCPMC7781392
OpenAlexW3120947223

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.