Effects of Electroacupuncture on Pain Threshold of Laboring Rats and the Expression of Norepinephrine Transporter and α2 Adrenergic Receptor in the Central Nervous System

Figure 1

Effects of electroacupuncture on pain threshold of laboring rats. Before and after treatment with electroacupuncture, pain in all rats undergoing parturition was evaluated by the warm water tail-flick test. versus before treatment; versus control; versus meperidine; versus Hegu; versus Hegu + Sanyinjiao; versus Xuehai. for each group.