| Distribution of serotonin- and dopamine-immunoreactivity in the brain of the teleost Clarias gariepinus. | |
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MedLine Citation:
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PMID: 2059346 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The distribution of serotonergic and dopaminergic cell bodies and varicose fibres in the brain of the teleost Clarias gariepinus was studied immunohistochemically using antisera against formaldehyde-conjugated serotonin and dopamine. Many serotonergic and dopaminergic fibres innervated the areas dorsalis telencephali pars medialis and pars lateralis dorsalis, as well as the area ventralis telencephali pars ventralis. In the diencephalon, a large number of serotonergic and some dopaminergic fibres were found in the preoptic nucleus, innervating the cells of this nucleus. In addition, serotonergic and dopaminergic fibres were observed in the pituitary stalk and in all regions of the pituitary gland. Moreover, the diencephalon contained the highest number of serotonin- or dopamine-immunoreactive cell bodies. These cells were confined to the same periventricular nuclei as the nucleus ventromedialis thalami, the nucleus posterior periventricularis, the nucleus lateralis tuberis, the nuclei recessus lateralis and recessus posterioris. Most cells of these nuclei were in contact with the cerebrospinal fluid of the third ventricle. The brainstem contained serotonergic cell bodies in the raphe nuclei and a few serotonergic and dopaminergic fibres. The torus semicircularis was densely innervated by serotonergic fibres and, to a lesser extent, dopaminergic fibres. In the midbrain of Clarias gariepinus, no dopaminergic homologue of the substantia nigra was observed. The results are discussed both in a comparative and a physiological context. In this regard, special attention has been paid to the contribution of hypothalamic monoamines in the regulation of gonadotropin secretion as an essential step in the neuro-endocrine control of reproduction. |
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Authors:
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M Corio; J Peute; H W Steinbusch |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of chemical neuroanatomy Volume: 4 ISSN: 0891-0618 ISO Abbreviation: J. Chem. Neuroanat. Publication Date: 1991 Mar-Apr |
Date Detail:
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Created Date: 1991-08-02 Completed Date: 1991-08-02 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 8902615 Medline TA: J Chem Neuroanat Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 79-95 Citation Subset: IM |
Affiliation:
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Centre de Neurochimie, Strasbourg, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Brain / anatomy & histology*, cytology Brain Stem / anatomy & histology Catfishes / anatomy & histology* Diencephalon / anatomy & histology Dopamine / analysis* Immunohistochemistry Organ Specificity Pituitary Gland / anatomy & histology, cytology Serotonin / analysis* |
| Chemical | |
Reg. No./Substance:
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50-67-9/Serotonin |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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