Is substance P a primary afferent neurotransmitter for nociceptive input? IV. 2-Amino-5-phosphonovalerate (APV) and [D-Pro2,D-Trp7,9]-substance P exert different effects on behaviors induced by intrathecal substance P, strychnine and kainic acid.

@article{Bossut1988IsSP,
  title={Is substance P a primary afferent neurotransmitter for nociceptive input? IV. 2-Amino-5-phosphonovalerate (APV) and [D-Pro2,D-Trp7,9]-substance P exert different effects on behaviors induced by intrathecal substance P, strychnine and kainic acid.},
  author={D F Bossut and Hanan Frenk and Dr. Jaques Mayer},
  journal={Brain research},
  year={1988},
  volume={455 2},
  pages={247-53}
}
Intrathecal (i.t.) pretreatment with 2-amino-5-phosphonovalerate (APV), an NMDA receptor antagonist, diminished scratching with the hindlimbs, vocalization, biting or licking, and myoclonic twitches produced by i.t. strychnine, kainic acid, or morphine in rats. APV did not diminish these behaviors when produced by i.t. substance P (SP). The SP analogue [D-Pro2,D-Trp7,9]-substance P (DPDT) failed to affect any behaviors produced by all of these compounds at non-paralytic doses. At these doses… CONTINUE READING