GABAergic neuronal circuits in the cerebellum of the dogfish Scyliorhinus canicula (Elasmobranchs): an immunocytochemical study.

Document Type

Article

Abstract

The presence of GABAergic cells and fibres in the corpus cerebelli and auricles of a dogfish, Scyliorhinus canicula, was studied with immunocytochemistry. In both locations, two types of GABA-immunoreactive (GABA-ir) neurons were observed: stellate cells in the molecular layer and Golgi cells in the granular layer. Stellate cell axons gave rise to numerous GABA-ir boutons distributed throughout the molecular layer and a smaller number of boutons which contacted Purkinje cell perikarya. No GABA-ir baskets around Purkinje cells were observed. Golgi cells of the granular layer gave rise to numerous GABA-ir boutons which were located around cerebellar glomeruli. Purkinje cell perikarya and their axon terminals in the cerebellar nucleus were not GABA-immunoreactive. These findings are discussed in terms of the phylogeny of cerebellar circuits.

Keywords

Animals, Cerebellum, Dogfish, Immunohistochemistry, Neural Pathways, Neurons, gamma-Aminobutyric Acid

Medical Subject Headings

Animals; Cerebellum; Dogfish; Immunohistochemistry; Neural Pathways; Neurons; gamma-Aminobutyric Acid

Publication Date

3-3-1995

Publication Title

Neuroscience letters

ISSN

0304-3940

Volume

187

Issue

2

First Page

87

Last Page

90

PubMed ID

7783965

Digital Object Identifier (DOI)

10.1016/0304-3940(95)11346-0

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