The acute antihyperalgesic action of nonsteroidal, anti-inflammatory drugs and release of spinal prostaglandin E2 is mediated by the inhibition of constitutive spinal cyclooxygenase-2 (COX-2) but not COX-1 - Yaksh,T.L.; Dirig,D.M.; Conway,C.M.; Svensson,C.; Luo,Z.D.; Isakson,P.C. (J Neurosci, 2001)