Reticulocerebellar projections to the anterior and posterior lobes of the rat cerebellum

By using retrograde double-labeling techniques, we analyzed the topography of projections from the lateral reticular nucleus (LRN) to the anterior and posterior lobes of the cerebellum, with the aim to investigate whether LRN projections to the two lobes come from different neurons or from branching...

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Bibliographic Details
Published in:Neuroscience letters 2001-11, Vol.314 (1), p.41-44
Main Authors: Valle, Maria Stella, Garifoli, Angelo, Maci, Tiziana, Perciavalle, Vincenzo
Format: Article
Language:English
Subjects:
Anatomy
Animals
Biological and medical sciences
Branching neurons
Cell Count
Central nervous system
Cerebellum - cytology
Cerebellum - physiology
Double labeling
Fluorescent Dyes
Functional Laterality - physiology
Fundamental and applied biological sciences. Psychology
Gold Colloid
Male
Medulla Oblongata - cytology
Medulla Oblongata - physiology
Molecular Probes
Neural Pathways - cytology
Neural Pathways - physiology
Neurons - cytology
Neurons - physiology
Rats
Rats, Wistar
Reticular Formation - cytology
Reticular Formation - physiology
Reticulocerebellar neurons
Retrograde tracers
Vertebrates: nervous system and sense organs
Wheat Germ Agglutinins
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Summary:By using retrograde double-labeling techniques, we analyzed the topography of projections from the lateral reticular nucleus (LRN) to the anterior and posterior lobes of the cerebellum, with the aim to investigate whether LRN projections to the two lobes come from different neurons or from branching axons of the same cells. We observed that about 4/5 of afferents the cerebellar cortex come from the ipsilateral LRN and about 1/5 from the contralateral nucleus. Furthermore, magnocellular division of LRN projects mainly to the anterior lobe, whereas parvicellular part primarily to the posterior lobe. The double-labelled cells were very numerous (about 1/3) and were located throughout the LRN, with the higher incidence in the magnocellular division and the lower in the subtrigeminal part.
ISSN:0304-3940
1872-7972
DOI:10.1016/S0304-3940(01)02278-9