七十年代中期发现了脑内的吗啡特殊受体,由此而迅速导致了内啡肽的发现,也就是自然存在的鸦片类物质,不仅在人体中枢神经系统发现了这种吗啡样化合物,而且也在野生动物及家畜中发现该物质。尽管存在几种介导止痛的鸦片类受体,几年来科学家们仍被鸦片类受体中的u型所迷惑,u型只有借助于吗啡才能更好地活化。 The discovery of morphine-specific receptors in the brain in the mid-seventies quickly led to the discovery of endorphins, which are naturally occurring opioids that not only found this morphine-like compound in the central nervous system of the human body, but also It is also found in wildlife and livestock. Despite the existence of several opioid receptors that mediate painkilling, scientists have been fooled by u-forms in opioid receptors for years, and u-forms are better activated only with morphine.