Callosal neurones give rise to zinc-rich boutons in the rat visual cortex
| Autor: | Jeús Pérez-Clausell, Mette K. Christensen, Fernando Martínez-García, Carme Casanovas-aguilar, José-Luis Bueno-López, Conceptión Reblet |
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| Rok vydání: | 1995 |
| Předmět: |
Male
Wheat Germ Agglutinins Wheat Germ Agglutinin-Horseradish Peroxidase Conjugate Biology Corpus callosum chemistry.chemical_compound Selenide Neural Pathways medicine Animals Zinc selenide Rats Wistar Selenium Compounds Horseradish Peroxidase Visual Cortex Neocortex General Neuroscience Brain Sodium selenide Anatomy Wheat germ agglutinin Rats Zinc medicine.anatomical_structure Visual cortex nervous system chemistry Neuron |
| Zdroj: | Scopus-Elsevier Europe PubMed Central |
| ISSN: | 0959-4965 |
| DOI: | 10.1097/00001756-199502000-00023 |
| Popis: | Sodium selenide was used as a retrograde tracer to assess the callosal origin of zinc-rich boutons in the neocortex of the rat. Selenide injections were placed in the lateral end of area Oc1 (area 17). Zinc present in synaptic boutons precipitated as zinc selenide and was transported retrogradely to the parent cell bodies. In addition to the ipsilateral labelling, contralateral retrogradely labelled somata were mainly observed along the border between areas Oc1 and Oc2L (area 18a). Labelled neurones were present in layer 2-3 and layer 6. In contrast to tracing studies with peroxidase, no labelled neurone was observed in layers 4 and 5 except at the inner border of layer 5. This study reveals the chemical heterogeneity of callosal projections, which may be divided into zinc-rich and zinc-poor systems. |
| Databáze: | OpenAIRE |
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