Cited by 14Pain Mechanisms and TreatmentsCannabis and Cannabinoid ResearchIon Channels and Receptors

URB597, an inhibitor of fatty acid amide hydrolase, reduces hyperalgesia in diabetic rats

Hasanein, Parisa, Parviz, Mohsen, Keshavarz, Mansoor, Roohbakhsh, Ali·2009·Canadian Journal of Physiology and Pharmacology

Abstract

Diabetic rats display increased pain responses after injection of formalin into the paw or thermal stimulation of the tail, suggesting the presence of hyperalgesia. In this study, we investigated the efficacy of URB597 (0.1, 0.3, and 0.5 mg/kg, i.p.), an inhibitor of endocannabinoids metabolism, on 2 models of experimental hyperalgesia in streptozotocin (STZ)-induced diabetic rats. Animals were divided into control, URB597-treated control (0.1, 0.3, and 0.5 mg/kg), diabetic, and URB597-treated diabetic (0.1, 0.3, and 0.5 mg/kg) groups. Formalin and tail-flick tests were performed 4 and 8 weeks after the onset of hyperglycemia, respectively. Diabetes caused significant hyperalgesia during these tests. URB597 (0.3 and 0.5 mg/kg) reversed chemical and thermal hyperalgesia in diabetic rats. Administration of URB597 at a dose of 0.1 mg/kg did not alter pain-related behaviors in control and diabetic groups compared with those of the respective control groups. URB597 treatment did not affect body weight or plasma glucose level of treated animals compared with nontreated animals. This study shows that increasing endocannabinoid neurotransmission with URB597 displays efficacy in chemical and thermal models of diabetic hyperalgesia. It also suggests that URB597 is a promising tool for treatment of painful diabetic neuropathy.

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Crossref · 10.1139/y09-026

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Authors
Hasanein, P., Parviz, M., Keshavarz, M., & Roohbakhsh, A.
Affiliations
Bu-Ali Sina University (IR)
Venue
Canadian Journal of Physiology and Pharmacology
Published
2009-06
Volume
87
Issue
6
Pages
432-439
ISSN
  • 0008-4212 (ISSN-L)
  • 1205-7541
OpenAlex
W2019815408
Cited by
14
References
46
Citations by year
2024: 1 · 2023: 1 · 2021: 2 · 2019: 1 · 2018: 1 · 2017: 1 · 2015: 1 · 2014: 4 · 2013: 1
FWCI
0.22
Type
journal article
Language
en
Open access
closed
Locations
  • Canadian Journal of Physiology and Pharmacology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Pain Mechanisms and Treatments
  • Health Sciences › Medicine › Pharmacology › Cannabis and Cannabinoid Research
  • Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
Keywords
URB597, fatty acid amide hydrolase inhibition, endocannabinoids, diabetic neuropathic pain, formalin test, tail-flick test, thermal hyperalgesia, streptozotocin-induced diabetes
MeSH terms
Fatty Acid Amide Hydrolases, Amidohydrolases, Animals, Benzamides, Blood Glucose, Body Weight, Carbamates, Diabetes Mellitus, Experimental, Dose-Response Relationship, Drug, Enzyme Inhibitors, Hyperalgesia, Injections, Intraperitoneal, Male, Pain Measurement, Temperature, Rats, Wistar, Pain Threshold, Rats, Cannabinoid Receptor Modulators

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