Title |
Involvement of cannabinoid CB1 receptors in the antinociceptive effect of dipyrone
|
---|---|
Published in |
Journal of Neural Transmission, June 2013
|
DOI | 10.1007/s00702-013-1052-7 |
Pubmed ID | |
Authors |
Pinar Elmas, Ahmet Ulugol |
Abstract |
Cannabinoid CB1 receptors have been implicated in the antinociceptive effect of paracetamol. In the current study, we examined whether blockade of CB1 receptors prevent the analgesic activity of dipyrone, in a similar way to paracetamol. Hot-plate and tail-flick tests were used to assess the antinociceptive activity in mice. Dipyrone and WIN 55,212-2, a cannabinoid agonist, exerted significant antinociceptive effects in both hot-plate and tail flick tests. The CB1 receptor antagonist, AM-251 (3 mg/kg), at a dose which had no effect when used alone, did not alter the antinociceptive effect of dipyrone, whereas completely prevented the antinociceptive activity of WIN 55,212-2 in both thermal antinociceptive tests. Our findings suggest that, unlike paracetamol, cannabinoid CB1 receptors do not participate in the antinociceptive action of dipyrone when acute pain tests used. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 31 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Bachelor | 5 | 16% |
Researcher | 4 | 13% |
Professor | 4 | 13% |
Student > Master | 4 | 13% |
Lecturer | 2 | 6% |
Other | 7 | 23% |
Unknown | 5 | 16% |
Readers by discipline | Count | As % |
---|---|---|
Medicine and Dentistry | 13 | 42% |
Chemistry | 2 | 6% |
Pharmacology, Toxicology and Pharmaceutical Science | 2 | 6% |
Neuroscience | 2 | 6% |
Biochemistry, Genetics and Molecular Biology | 1 | 3% |
Other | 5 | 16% |
Unknown | 6 | 19% |