Observations on the cellular localization of dopamine in the caudate nucleus of the rat |
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Authors: | Kjell Fuxe Thomas Hökfelt Ove Nilsson |
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Institution: | (1) Department of Histology, Karolinska Institutet, Stockholm, Sweden |
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Abstract: | Summary The cellular localization of dopamine in the caudate nucleus of the rat hat been studied with the highly sensitive and specific fluorescence method of Falck and Hillarp, and by electron microscopy. The histochemical studies provided strong support for the view that the dopamine is concentrated within very fine nerve fibres which have abundant varicosities with an intense fluorescence. The electron microscopical studies revealed the presence of a tightly packed plexus built up i.a. of abundant synaptic nerve terminals, many of which had a diameter below 0.4 . The terminals made synaptic contact mainly with processes that seemed to belong to an extensive dendrite net.The investigation was supported by research grants from the United States Public Health Service (02854-04), The Swedish Medical Research Council and the Knut and Alice Wallenberg Foundation. |
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