Evidence map›Paper›PMID 22049072›Full record

ArticleCephalalgia : an international journal of headache2011

Activation of TRPV4 on dural afferents produces headache-related behavior in a preclinical rat model.

Xiaomei Wei, Rebecca M Edelmayer, Jin Yan, Gregory Dussor

Abstract read
In one paragraph

Article in Cephalalgia : an international journal of headache, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

38 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Mechanosensitive receptors in migraine: a systematic review.The journal of headache and pain · 2024
    Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Review
  7. Meningeal Mechanisms and the Migraine Connection.Annual review of neuroscience · 2023
    Review
  8. Article
  9. Review
  10. Review
  11. Review
  12. Review
  13. Review
  14. Article
  15. Article
  16. Review
  17. Ion Channels Involved in Tooth Pain.International journal of molecular sciences · 2019
    Review
  18. Review
  19. Behavioral and cognitive animal models in headache research.The journal of headache and pain · 2019
    Review
  20. Non-invasive dural stimulation in mice: A novel preclinical model of migraine.Cephalalgia : an international journal of headache · 2019
    Article
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

4 authors.

Xiaomei WeiUniversity of Arizona College of Medicine, Tucson, AZ 85724, USA.
Rebecca M Edelmayer
Jin Yan
Gregory Dussor

Funding

The Role of ASICs in Migraine PathophysiologyR01NS072204 · NINDS · UNIVERSITY OF TEXAS DALLAS · PI DUSSOR, GREGORY O · 2011 to 2015
$1.9M
NINDS NIH HHS R01 NS072204NINDS NIH HHS R01NS072204
6 · The paper itself

Abstract

backgroundThe mechanisms contributing to the pain of migraine are poorly understood although activation of afferent nociceptors in the trigeminovascular system has been proposed as a key event. Prior studies have shown that dural-afferent nociceptors are sensitive to both osmotic and mechanical stimuli. Based on the sensitivity to these stimuli we hypothesized that dural afferents express the osmo/mechano-sensitive channel transient receptor-potential vanilloid 4 (TRPV4).

methodsThese studies used in vitro patch-clamp electrophysiology of trigeminal neurons retrogradely labeled from the dura to examine the functional expression of TRPV4. Additionally, we used a rat headache model in which facial/hind paw allodynia following dural stimulation is measured to determine whether activation of meningeal TRPV4 produces responses consistent with migraine.

resultsThese studies found that 56% and 49% of identified dural afferents generate currents in response to hypotonic solutions and 4α-PDD, respectively. The response to these stimuli indicates that dural afferents express TRPV4. Activation of meningeal TPRV4 using hypotonic solution or 4α-PDD in vivo resulted in both facial and hind paw allodynia that was blocked by the TRPV4 antagonist RN1734.

conclusionThese data indicate that activation of TRPV4 within the meninges produces afferent nociceptive signaling from the head that may contribute to migraine headache.

Indexed as

Behavior, AnimalAnimalsDisease Models, AnimalDura MaterHeadacheMaleNeurons, AfferentPainPatch-Clamp TechniquesRatsRats, Sprague-DawleyTRPV Cation ChannelsTrpv4 protein, ratTRPV Cation Channels

Identifiers

PMID22049072
PMCPMC3543146

What OpenQuestion holds

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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.