Evidence map›Paper›PMID 34256692›Full record

ArticleThe journal of headache and pain2021

Interleukin-6 induces spatially dependent whole-body hypersensitivity in rats: implications for extracephalic hypersensitivity in migraine.

Amanda Avona, Theodore J Price, Gregory Dussor

Open access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

16 citing papers in PubMed, 24 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Article
  5. Antinociceptive and anti-inflammatory effects of a formulation based onJournal of oral & facial pain and headache · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Review
  14. Dural Immune Cells, CGRP, and Migraine.Frontiers in neurology · 2022
    Review
  15. Article
  16. Sexual dimorphism in functional pain syndromes.Science translational medicine · 2021
    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

3 authors at 1 institution in 1 country.

Amanda AvonaSchool of Behavioral and Brain Sciences, Center for Advanced Pain Studies, University of Texas at Dallas, Richardson, TX, 75080, USA.
Theodore J PriceSchool of Behavioral and Brain Sciences, Center for Advanced Pain Studies, University of Texas at Dallas, Richardson, TX, 75080, USA.
Gregory DussorSchool of Behavioral and Brain Sciences, Center for Advanced Pain Studies, University of Texas at Dallas, Richardson, TX, 75080, USA. Gregory.Dussor1@utdallas.edu.ORCID http://orcid.org/0000-0002-1193-9238
The University of Texas at Dallas · US

Funding

Meningeal prolactin signaling and female-selective migraine mechanismsR01NS104200 · NINDS · UNIVERSITY OF TEXAS DALLAS · PI AKOPIAN, ARMEN N, DUSSOR, GREGORY O · 2018 to 2022
$2.4M
The Role of ASICs in Migraine PathophysiologyR01NS072204 · NINDS · UNIVERSITY OF TEXAS DALLAS · PI DUSSOR, GREGORY O · 2011 to 2015
$1.9M
Foundation for the National Institutes of Health NS072204Foundation for the National Institutes of Health NS104200NINDS NIH HHS R01 NS072204NINDS NIH HHS R01 NS104200
6 · The paper itself

Abstract

backgroundMigraine is a complex neurological disorder that is characterized by throbbing head pain, increased sensitivity to light, sound, and touch, as well as nausea and fatigue. It is one of the most common and most disabling disorders globally but mechanisms causing migraine are poorly understood. While head pain is a typical feature of attacks, they also often present with cutaneous hypersensitivity in the rest of the body. In contrast, primary pain conditions in the lower parts of the body are less commonly associated with cephalic hypersensitivity. Previous studies indicate that application of stimuli to the meninges of rodents causes cutaneous facial as well as hindpaw hypersensitivity. In the present study, we asked whether widespread hypersensitivity is a unique feature of dural stimulation or whether body-wide responses occur similarly when the same stimulus is given in other locations.

methodsRats were given the same dose of IL-6 either via dural, intraplantar, subcutaneous, intramuscular, intracisternal, or intrathecal injection. Cutaneous facial and hindpaw allodynia was assessed using Von Frey following injection into each location.

resultsHindpaw allodynia was observed following dural and intraplantar injection of IL-6 in both males and females. Hindpaw allodynia was only observed in females following intracisternal and intrathecal IL-6 injections. In contrast, facial allodynia was only observed in either sex following dural and intracisternal injections, which would activate meningeal afferents and the trigeminal nucleus caudalis (TNC), respectively.

conclusionsHere we show that while stimulation of upper body regions with IL-6 including the meninges and brainstem can cause widespread hypersensitivity spreading to the paws, similar stimulation of the lower body does not cause the spread of hypersensitivity into the head. These data are consistent with the observations that whole body hypersensitivity is specific to conditions such as migraine where pain is present in the head and they may provide insight into co-morbid pain states associated with migraine.

Indexed as

Interleukin-6Migraine DisordersAnimalsDura MaterFemaleHyperalgesiaMaleRatsRats, Sprague-DawleyInterleukin-6AllodyniaCentral sensitizationCephalic hypersensitivityDura materHeadacheInterleukin-6MeningesMigraineReferred hypersensitivity

Identifiers

PMID34256692
PMCPMC8278737
OpenAlexW3155849144

What OpenQuestion holds

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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.