This wrok was to investigate the change of the contents of vasopressin and oxytoein during acupuncture in rat. Acupuncture could not only cause a change of immunoreative arginine w.sopressin
but also cause a change of immunoreactive oxytocin in many regions of rat brain.These results suggest that arginine vasopressin" and oxytocin might be throt
gh the central nervous system to participate acupuncture analgesia.