Abstract

ABSTRACTObjective and method: D-serine acts as an obligatory ligand for the glycine sites of N-methyl-D-aspartate receptors. To investigate its effect on head-facial pain, nociceptive behaviors of rats induced by electrical stimulation of the dura mater were observed after cerebroventricular infusion of D-serine.Results: Rats in the D-serine infusion group showed significantly fewer nociceptive behaviors, including grooming and head flicking, than rats in the saline infusion group and control rats.Conclusions: This is the first study to introduce D-serine to a trigeminovascular headache model that demonstrates an antinociceptive-like effect in rats.

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