Cited by 48Migraine and Headache StudiesCannabis and Cannabinoid ResearchPain Mechanisms and Treatments

Effects of anandamide in migraine: data from an animal model

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Greco, Rosaria, Mangione, Antonina Stefania, Sandrini, Giorgio, Maccarrone, Mauro, Nappi, Giuseppe, Tassorelli, Cristina·2011·The Journal of Headache and Pain

Abstract

Systemic nitroglycerin (NTG) produces spontaneous-like migraine attacks in migraine sufferers and induces a condition of hyperalgesia in the rat 4 h after its administration. Endocannabinoid system seems to be involved in the modulation of NTG-induced hyperalgesia, and probably, in the pathophysiological mechanisms of migraine. In this study, the analgesic effect of anandamide (AEA) was evaluated by means of the formalin test, performed in baseline conditions and following NTG-induced hyperalgesia in male Sprague-Dawley rats. AEA was administered 30 min before the formalin injection. In addition, the effect of AEA (administered 30 min before NTG injection) was investigated on NTG-induced Fos expression and evaluated 4 h following NTG injection. AEA induced a significant decrease in the nociceptive behavior during both phases of the formalin test in the animals treated with vehicle, while it abolished NTG-induced hyperalgesia during the phase II. Pre-treatment with AEA significantly reduced the NTG-induced neuronal activation in nucleus trigeminalis caudalis, confirming the results obtained in our previous study, and in area postrema, while the same treatment induced an increase of Fos expression in paraventricular and supraoptic nuclei of the hypothalamus, parabrachial nucleus, and periaqueductal grey. The study confirms that a dysfunction of the endocannabinoid system may contribute to the development of migraine attacks and that a pharmacological modulation of CB receptors can be useful for the treatment of migraine pain.

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Authors
Greco, R., Mangione, A. S., Sandrini, G., Maccarrone, M., Nappi, G., & Tassorelli, C.
Affiliations
  • University of Pavia (IT)
  • University of Teramo (IT)
Corresponding author
Greco, Rosaria
Venue
The Journal of Headache and Pain
Published
2011-02-18
Volume
12
Issue
2
Pages
177-183
ISSN
  • 1129-2369 (ISSN-L)
  • 1129-2377
OpenAlex
W2093129801
Cited by
48
References
38
Citations by year
2026: 3 · 2025: 3 · 2023: 3 · 2022: 4 · 2021: 5 · 2020: 5 · 2019: 7 · 2018: 2 · 2017: 6 · 2016: 1 · 2015: 3 · 2014: 3 · 2013: 1 · 2012: 1
FWCI
1.31
Type
journal article
Language
en
Open access
Locations
  • The Journal of Headache and Pain (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Archivio Istituzionale della Ricerca - Università degli Studi dell Aquila (submittedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Migraine and Headache Studies
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
Keywords
anandamide, migraine, endocannabinoid system, analgesia, formalin test, Fos expression, nucleus tractus solitarius, area postrema, hypothalamus, parabrachial nucleus, periaqueductal gray
MeSH terms
Analgesics, Animals, Arachidonic Acids, Behavior, Animal, Disease Models, Animal, Drug Interactions, Nitroglycerin, Male, Migraine Disorders, Pain Measurement, Time Factors, Vasodilator Agents, Treatment Outcome, Rats, Sprague-Dawley, Rats, Polyunsaturated Alkamides, Cannabinoid Receptor Modulators, Endocannabinoids

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