Evidence map›Paper›PMID 24636539›Full record

ArticleThe journal of headache and pain2014

Activation of CB2 receptors as a potential therapeutic target for migraine: evaluation in an animal model.

Rosaria Greco, Antonina Stefania Mangione, Giorgio Sandrini, Giuseppe Nappi, Cristina Tassorelli

Open access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
6.0field-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

18 citing papers in PubMed, 45 citations in OpenAlex.

  1. Article
  2. Overlapping pathways of migraine and the endocannabinoid system: Potential therapeutic targets.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2026
    Review
  3. Cannabinoid CBBritish journal of pharmacology · 2025
    Review
  4. Article
  5. Review
  6. Article
  7. Cannabis and Migraine: It's Complicated.Current pain and headache reports · 2021
    Review
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  9. Article
  10. The Endogenous Cannabinoid System: A Budding Source of Targets for Treating Inflammatory and Neuropathic Pain.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    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

5 authors at 1 institution in 1 country.

Rosaria Greco
Antonina Stefania Mangione
Giorgio Sandrini
Giuseppe Nappi
Cristina TassorelliLaboratory of Neurophysiology of Integrative Autonomic Systems, Headache Science Centre, "C, Mondino" National Neurological Institute, 27100 Pavia, Italy. cristina.tassorelli@mondino.it.
University of Pavia · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundExperimental animal models of migraine have suggested the existence of interactions between the endocannabinoid system and pain mediation in migraine. Extensive evidence has demonstrated a role for the cannabinoid-1 (CB1) receptor in antinociception. However, recent research suggests that also CB2 receptors, especially located outside the central nervous system, play a role in the perception of pain. Systemic administration of nitroglycerin (NTG) consistently induces spontaneous-like headache attacks in migraneurs; in the rat, systemic NTG induces a condition of hyperalgesia, probably through the activation of cerebral/spinal structures involved in nociceptive transmission. In this study we evaluated the role of CB2 receptors in two animal models of pain that may be relevant for migraine: the tail flick test and the formalin test performed during NTG-induced hyperalgesia.

methodsThe study was performed in male Sprague-Dawley rats pre-treated with NTG (10 mg/kg, i.p.) or vehicle (4 hours before) and treated with the CB2 agonist AM1241 o dimethylsulfoxide (DMSO) 60 minutes before both the tail flick test and the formalin test.

resultsAM1241 showed a significant analgesic effect in baseline conditions in both tests. Furthermore, when administered 3 hours after NTG administration, AM1241 at both doses significantly reduced the total number of flinches/shakes during phase II of the test.

conclusionThese findings suggest that the pharmacological manipulation of the CB2 receptor may represent a potential therapeutic tool for the treatment of migraine.

Indexed as

Disease Models, AnimalAnalgesicsAnimalsCannabinoidsDrug Delivery SystemsMaleMigraine DisordersPainPain MeasurementRatsRats, Sprague-DawleyReceptor, Cannabinoid, CB2AM 1241AnalgesicsCannabinoidsReceptor, Cannabinoid, CB2

Identifiers

PMID24636539
PMCPMC3995520
OpenAlexW2139050120

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.