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神经元间的信息传递是单向的,是通过突触前神经元的轴突末梢释放神经递质,作用于突触后神经元胞体或树突上的受体而实现的。然而,自从1975年以来,相继有人提出树突也能释放某些化学物质。本文对有关黑质—纹状体多巴胺能神经元的树突释放多巴胺(DA)及其在黑质的作用加以综述。一、黑质内树突释放 DA 的研究黑质—纹状体 DA 能神经元的细胞体主要集中在黑质致密部,其树突长而弯曲,分
The transmission of information between neurons is unidirectional, through the release of neurotransmitters from the axon terminals of presynaptic neurons, acting on the receptors on postsynaptic neurons or dendrites. However, since 1975, it has been suggested that dendrites can also release certain chemicals. This article reviews the role of dendritic release of dopamine (DA) and its role in the substantia nigra of the substantia nigra and striatal dopaminergic neurons. First, the dendrites in the substantia nigra release of DA The substantia nigra - striatum DA neurons of the cell body is concentrated in the substantia nigra dense part of the long and curved dendrites, points