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 2

Comparison of serum NE: with control group ; with Sanyinjiao (SP 6) group, ; with Hegu (LI 4) group, , ; with Hegu (LI 4) and Sanyinjiao (SP 6) group, ; with Xuehai (SP 10) group, . for each group.