Figure 4From: Involvement of spinal orexin A in the electroacupuncture analgesia in a rat model of post-laparotomy pain The OXA analgesic effect was not blocked by intrathecal administration of naloxone (A). The fentanyl-induced analgesic effect was not blocked by intrathecal administration of SB-334867 (B). Data are presented as the mean ± SEM. *P<0.05 versus saline group. Short black line represents the surgery duration. BL: baseline; NLX: naloxone; Fen: fentanyl; SB: SB-334867.Back to article page