Nitric oxide synergistically potentiates interleukin-1β-induced increase of cyclooxygenase-2 mRNA levels, resulting in the facilitation of substance P release from primary afferent neurons: involvement of cGMP-independent mechanismsNorimitsu Morioka, Yoshihiro Nakata, Tomohiko Hanada et al.|Neuropharmacology|2002Cited by 48