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Different neuronal location of [3H]SCH 23390 binding sites in pars reticulata and pars compacta of the substantia nigra in the rat
| Content Provider | Semantic Scholar |
|---|---|
| Author | Savasta, Marc Dubois, Alain Benavides, Jesús Scatton, Bernard |
| Copyright Year | 1986 |
| Abstract | The precise neuronal localization of D1 receptors in the substantia nigra has been studied autoradiographically in the rat by measuring the alterations of [3H]SCH 23390 binding site densities in this brain area after 6-hydroxydopamine (6-OHDA) induced destruction of nigrostriatal dopaminergic neurons and after ibotenate-induced lesion of striatal afferents. 6-OHDA-induced nigral lesion provoked a total loss of [3H]SCH 23390 binding sites in the pars compacta and pars lateralis (but not in the pars reticulata) of the substantia nigra. In contrast, ibotenate-induced striatal lesion caused a large diminution of the [3H]ligand binding site density in the pars reticulata but not in the pars compacta and pars lateralis of the substantia nigra. These results suggest that D1 receptors in the pars compacta or pars lateralis of the substantia nigra are located on the dopaminergic perikarya whereas those D1 receptors present in the pars reticulata of the substantia nigra lie on the terminals of nigral afferents of striatal origin. |
| Starting Page | 265 |
| Ending Page | 271 |
| Page Count | 7 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/0304-3940(86)90524-0 |
| Alternate Webpage(s) | https://api.elsevier.com/content/article/pii/0304394086905240 |
| Alternate Webpage(s) | https://www.sciencedirect.com/science/article/pii/0304394086905240?dgcid=api_sd_search-api-endpoint |
| PubMed reference number | 2950341 |
| Alternate Webpage(s) | https://doi.org/10.1016/0304-3940%2886%2990524-0 |
| Journal | Medline |
| Volume Number | 72 |
| Journal | Neuroscience Letters |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
