关于中枢去甲肾上腺素(NE)在针刺镇痛中的作用,各家报告不一。这与受体作用的复杂性有关。中枢NE通过α受体对抗针效,通过β受体加强针效(苏树伊等:“针刺麻醉”,(2):53,1979)。但β受体又分为β_1和β_2受体,它们在针刺镇痛中的作用尚未见报道。本工作选用β_1受体阻断剂心得宁(Practolol, Pt)和β_2受体激动剂氨哮素(Clenbuterol, CL),分别进行腹腔注 Various reports on the role of central norepinephrine (NE) in acupuncture analgesia. This is related to the complexity of the receptor’s role. Central NE acts against acupuncture at the alpha receptor and acupuncture at the beta receptor (Sohiro et al .: Acupuncture Anesthesia, (2): 53, 1979). However, beta receptors are divided into beta 1 and beta 2 receptors, their role in acupuncture analgesia has not been reported. In this work, we used the β 1 receptor antagonist, Practolol (Pt) and β 2 receptor agonist Clenbuterol (CL)