中枢神经系统中的r-氨基丁酸(GABA)从神经末梢释出后主要是在GABA氨基转移酶(GABA-T)作用下被降解失活。r-乙烯基GABA(r-vinyl GABA,GVG)是近年发现的一种专一性较强的GABA-T抑制剂。由于GABA-T受到抑制,脑内GABA含量可大幅度提高,而且能持续数十小时之久。本实验采用GVG作脑室注射,在脑内GABA含量提高的同时观察电针和吗啡镇痛效果的变化。 Central nervous system r-aminobutyric acid (GABA) release from the nerve endings is mainly in the GABA aminotransferase (GABA-T) is degraded inactivation. r-vinyl GABA (r-vinyl GABA, GVG) is a more specific GABA-T inhibitor found in recent years. Due to the inhibition of GABA-T, the brain GABA content can be greatly increased, and can last for dozens of hours. In this study, intravenous injection of GVG was used to observe the changes of electroacupuncture and morphine analgesia while the content of GABA in the brain was increased.