Figure 1From: Involvement of spinal orexin A in the electroacupuncture analgesia in a rat model of post-laparotomy pain OXA levels determined by ELISA in the rat hypothalamus, PAG and spinal cord in the normal, model, EA 2/15 Hz and EA 2/100 Hz groups. Data are presented as the mean ± SEM (n=4 in each group). #P<0.05 versus normal group, *P<0.05 versus model group. PAG: periaqueductal gray matter.Back to article page