Evidence map›Paper›PMID 28127585›Full record

ArticleeNeuro

Cortical Spreading Depression Promotes Persistent Mechanical Sensitization of Intracranial Meningeal Afferents: Implications for the Intracranial Mechanosensitivity of Migraine.

Jun Zhao, Dan Levy

Open access · goldAbstract read
In one paragraph

Article in eNeuro. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
3.5field-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.

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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Mechanosensitive receptors in migraine: a systematic review.The journal of headache and pain · 2024
    Pooled it
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  16. Meningeal P2X7 Signaling Mediates Migraine-Related Intracranial Mechanical Hypersensitivity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2023
    Article
  17. Meningeal Mechanisms and the Migraine Connection.Annual review of neuroscience · 2023
    Review
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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

2 authors at 1 institution in 2 countries.

Jun ZhaoDepartment of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Boston, 02215 MA; Harvard Medical School, Boston, 02115 MA.
Dan LevyDepartment of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Boston, 02215 MA; Harvard Medical School, Boston, 02115 MA.ORCID 0000-0003-0630-6660
Beth Israel Deaconess Medical Center · US

Funding

MECHANISMS OF CSD-EVOKED PERSISTENT ACTIVATION OF MENINGEAL NOCICEPTORSR01NS078263 · NINDS · BETH ISRAEL DEACONESS MEDICAL CENTER · PI LEVY, DAN · 2013 to 2022
$3.1M
Peripheral Mechanisms of Posttraumatic HeadacheR01NS086830 · NINDS · BETH ISRAEL DEACONESS MEDICAL CENTER · PI LEVY, DAN · 2014 to 2018
$1.9M
NINDS NIH HHS R01 NS078263NINDS NIH HHS R01 NS086830
6 · The paper itself

Abstract

Migraine is one of the most common and disabling diseases in the world. A major feature of migraine headache is its aggravation by maneuvers that momentarily increase intracranial pressure. A key hypothesis implicates mechanical sensitization of trigeminal afferents that innervate the intracranial meninges in mediating this feature of migraine. However, whether such pain-related neural response actually develops under endogenous conditions that are linked specifically to migraine remains to be established. Single-unit recordings in the trigeminal ganglion of anesthetized male rats were combined with quantitative mechanical stimulation of the cranial dura mater to determine whether cortical spreading depression (CSD), an endogenous migraine-triggering event, affects the mechanosensitivity of meningeal afferents. CSD gave rise to an almost threefold increase in the magnitude of the responses to mechanical stimuli in 17 of 23 of the afferents tested. CSD-evoked meningeal afferent mechanosensitization occurred with a delay of 23.1 ± 2.2 min and lasted 64.1 ± 6.8 min in recording sessions that lasted for 90 min and for 177.5 ± 22.1 min in recording sessions that were extended for 240 min. Some of the sensitized afferents also developed a shorter-lasting increase in their ongoing discharge rate that was not correlated with the increase in their mechanosensitivity, suggesting that CSD-evoked meningeal afferent sensitization and increase in ongoing activity are independent phenomena. These novel findings support the notion that mechanical sensitization of meningeal afferents serves as a key nociceptive process that underlies the worsening of migraine headache during conditions that momentarily increase intracranial pressure.

Indexed as

AnimalsCortical Spreading DepressionFrontal LobeIntracranial PressureMaleMeningesMicroelectrodesMigraine DisordersNeuronsNeurons, AfferentPhysical StimulationRats, Sprague-DawleyTouch PerceptionTrigeminal Nerveafferentcranial meningesheadachemechanosensitizationmigrainetrigeminal

Identifiers

PMID28127585
PMCPMC5242377
OpenAlexW2560090711

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.