自从1973年在动物和人的脑内发现吗啡受体后,在国际上引起了重视,大大地促进了这方面的研究。国外的研究目的,主要是设想通过这个途径寻找高效而不成瘾的镇痛药,并解决药物耐受性和成瘾性的原理问题。此外,还认为这一发现说明体内存在“抗痛系统”,包括抗痛的脑结构、受体和递质等,这将 Since the discovery of morphine receptors in the brain of animals and humans in 1973, it has gained international prominence and greatly promoted research in this area. The main purpose of foreign research is to envisage finding effective and non-addictive analgesics through this route and to solve the principle of drug tolerance and addiction. In addition, this finding is also considered to indicate the existence of “anti-pain system” in the body, including anti-pain brain structure, receptors and neurotransmitters, which will