| Autor: |
Paolo Flace, Paolo Livrea, Diana Galletta, Antonella Bizzoca, Gianpaolo Basile, Jacopo Junio Valerio Branca, Massimo Gulisano, Alberto Cacciola, Gianfranco Gennarini, Demetrio Milardi, Giuseppe Anastasi, Alessia Bramanti |
| Rok vydání: |
2020 |
| Předmět: |
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| Popis: |
Background The cerebellum now it has not considered a dopaminergic region. Despite, is traditionally reported only the presence of dopaminergic afferents to the cerebellum. Currently, studies attribute to the cerebellum a critical role in motor and cognitive functions and suggest a cerebellar involvement in dopamine related neurologic and psychiatric disorders. In several studies has been demonstrated mainly in the cerebellum of rodents a widely distribution of all dopaminergic receptor subtypes (DRD1-DRD5), a poor number of dopaminergic Purkinje neurons, and the presence of several dopaminergic neurons in the deep cerebellar nuclei. Data on an intrinsic dopaminergic neuronal system in the human cerebellum are lacking. Methods The aim of the present study of chemical neuroanatomy was to investigate in human cerebellum on the presence of a dopaminergic neuronal system, through an immunohistochemical approach based on the use of specific antibodies against the dopamine membrane transporter (DAT) and the dopamine receptor subtype 2 (DRD2). Results The immunoreactions revealed the presence of DAT and DRD2 positive neuronal cell bodies and processes of all the layers of the cerebellar cortex and in the dentate nucleus. These results are in agreement with previous studies, and suggest which the intrinsic cerebellar neuronal dopaminergic system may be involved in intrinsic and extrinsic (projective) cerebellar circuits. Conclusions This study open a new scenario on the interpretation of the cerebellar role in dopaminergic related brain disorders. Finally, this study may be an innovative critical element for the development of pharmacologic and non-pharmacologic therapeutic strategies for neurologic and psychiatric disorders related to dopamine. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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