多巴胺在交感神经及肾上腺髓质中作为去甲肾上腺素(NE)及肾上腺素(E)的前身物,这是很早就已知道的事实。以后发现有些合成儿茶酚胺(CA)的神经原,其中 CA 的生成过程仅停止于多巴胺(DA)的阶段。在中枢神经系统和身体其他一些器官中 DA 占 CA 的一半或更多。已积累的资料表明,DA 本身可能就是机体内的一个生理活性物质,具有专门 It has long been known that dopamine acts as a precursor to norepinephrine (NE) and epinephrine (E) in the sympathetic and adrenal medulla. Later on, some neurons that synthesize catecholamine (CA) were found, in which the generation of CA stopped only at the stage of dopamine (DA). DA accounts for half or more of CA in the central nervous system and some other parts of the body. The accumulated data suggest that DA itself may be a physiologically active substance in the body with specialized