The analgesic activity of paracetamol is prevented by the blockade of cannabinoid CB1 receptors

被引:186
作者
Ottani, A
Leone, S
Sandrini, M
Ferrari, A
Bertolini, A
机构
[1] Univ Modena & Reggio Emilia, Fac Med, Clin Pharmacol Sect, Dept Lab Serv,Policlin Modena, I-41100 Modena, Italy
[2] Univ Modena & Reggio Emilia, Dept Biomed Sci, Pharmacol Sect, I-41100 Modena, Italy
关键词
paracetamol; CB1; receptor; analgesic activity;
D O I
10.1016/j.ejphar.2005.12.015
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
The mechanism of the analgesic activity of paracetamol (acetaminophen), one of the most widely used drugs for the treatment of pain, is still not clear. Here we show that in rats, using the hot plate test, the analgesic effect of paracetamol is prevented by two antagonists at cannabinoid CB I receptors (AM281 and SR141716A) at doses that prevent the analgesic activity of the cannabinoid wCB(1) agonist HU210. Our present results suggest that paracetamol-induced antinociception involves the cannabinoid system. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:280 / 281
页数:2
相关论文
共 9 条
[1]   Synergistic interactions between cannabinoid and opioid analgesics [J].
Cichewicz, DL .
LIFE SCIENCES, 2004, 74 (11) :1317-1324
[2]   Reversal by naloxone of the spinal antinociceptive actions of a systemically-administered NSAID [J].
Herrero, JF ;
Headley, PM .
BRITISH JOURNAL OF PHARMACOLOGY, 1996, 118 (04) :968-972
[3]   An analgesia circuit activated by cannabinoids [J].
Meng, ID ;
Manning, BH ;
Martin, WJ ;
Fields, HL .
NATURE, 1998, 395 (6700) :381-383
[4]   CHARACTERIZATION OF THE HYPOTHERMIC EFFECT OF THE SYNTHETIC CANNABINOID HU-210 IN THE RAT - RELATION TO THE ADRENERGIC SYSTEM AND ENDOGENOUS PYROGENS [J].
OVADIA, H ;
WOHLMAN, A ;
MECHOULAM, R ;
WEIDENFELD, J .
NEUROPHARMACOLOGY, 1995, 34 (02) :175-180
[5]   Cannabinoid receptors and pain [J].
Pertwee, RG .
PROGRESS IN NEUROBIOLOGY, 2001, 63 (05) :569-611
[6]   The antinociceptive action of paracetamol is associated with changes in the serotonergic system in the rat brain [J].
Pini, LA ;
Sandrini, M ;
Vitale, G .
EUROPEAN JOURNAL OF PHARMACOLOGY, 1996, 308 (01) :31-40
[7]   The effect of a paracetamol and morphine combination on dynorphin A levels in the rat brain [J].
Sandrini, M ;
Romualdi, P ;
Vitale, G ;
Morelli, G ;
Capobianco, A ;
Pini, LA ;
Candeletti, S .
BIOCHEMICAL PHARMACOLOGY, 2001, 61 (11) :1409-1416
[8]   ANTINOCICEPTIVE EFFECT OF PARACETAMOL IN RATS IS PARTLY DEPENDENT ON SPINAL SEROTONERGIC SYSTEMS [J].
TJOLSEN, A ;
LUND, A ;
HOLE, K .
EUROPEAN JOURNAL OF PHARMACOLOGY, 1991, 193 (02) :193-201
[9]   Cannabinoid analgesia [J].
Walker, JM ;
Huang, SM .
PHARMACOLOGY & THERAPEUTICS, 2002, 95 (02) :127-135