[1] Univ Calabria, Dept Pharmacobiol, I-87036 Cosenza, Italy
[2] Ctr Neurobiol Sperimentale Mondino Tor Vergata, Rome, Italy
[3] UCL, London Pain Consortium, London, England
[4] Magna Graecia Univ Catanzaro, Fac Pharm, Dept Pharmacobiol Sci, Catanzaro, Italy
[5] Univ Calabria, UCHAD, I-87036 Cosenza, Italy
[6] Del E Webb Ctr Neurosci & Aging, Burnham Inst Med Res, La Jolla, CA USA