Distribution of met‐enkephalin, leu‐enkephalin, substance P, neuropeptide Y, FMRFamide, and serotonin immunoreactivities in the optic tectum of the Atlantic salmon ( Salmo salar L.)
Abstract The distribution of the neuropeptides methionine‐ and leucine‐enkephalins, substance P, FMRFamide, neuropeptide Y, and vasoactive intestinal peptide, as well as the biogenic amine serotonin was studied in the optic tectum of the Atlantic salmon by means of immunocytochemistry. Peroxidase‐an...
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crwiley:10.1002/cne.902990207 2024-04-21T07:57:17+00:00 Distribution of met‐enkephalin, leu‐enkephalin, substance P, neuropeptide Y, FMRFamide, and serotonin immunoreactivities in the optic tectum of the Atlantic salmon ( Salmo salar L.) Vecino, Elena Ekström, Peter 1990 http://dx.doi.org/10.1002/cne.902990207 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fcne.902990207 https://onlinelibrary.wiley.com/doi/pdf/10.1002/cne.902990207 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Comparative Neurology volume 299, issue 2, page 229-241 ISSN 0021-9967 1096-9861 General Neuroscience journal-article 1990 crwiley https://doi.org/10.1002/cne.902990207 2024-03-28T08:31:37Z Abstract The distribution of the neuropeptides methionine‐ and leucine‐enkephalins, substance P, FMRFamide, neuropeptide Y, and vasoactive intestinal peptide, as well as the biogenic amine serotonin was studied in the optic tectum of the Atlantic salmon by means of immunocytochemistry. Peroxidase‐antiperoxidase and indirect immunofluorescence methods were used to compare the differential laminar distribution of each of these substances. Nine parts of the optic tectum were selected for analysis on frontal sections: median, dorsolateral, and ventrolateral areas at rostral, medial, and caudal levels. Methionine‐ and leucine‐enkephalin immunoreactive fibers were found in discrete sublayers in the following strata: stratum opticum, stratum fibrosum et griseum superficiale, stratum griseum centrale, stratum, and album centrale. Most of the substance P‐, serotonin‐, and vasoactive intestinal peptide‐immunoreactive fibers were found in the stratum album centrale, whereas the FMRFamide‐ and neuropeptide Y‐immunoreactive fibers were more or less randomly distributed within most of the strata of the optic tectum. Neuropeptide Y‐immunoreactive cell bodies were located in the stratum periventriculare. We suggest an extrinsic origin for most of the immunoreactive fibers observed in the optic tectum, except for the neuropeptide Y‐immunoreactive fibers that probably originate in the periventricular neurons. Although retinal peptidergic input to the optic tectum has been proposed in other vertebrates, there is no evidence that any of the neuropeptidelike or serotonin immunoreactive fibers in the optic tectum of the salmon should be of retinal origin. Differences and similarities with the distribution of neuropeptides in the optic tectum in representatives of other vertebrate classes are discussed. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library The Journal of Comparative Neurology 299 2 229 241 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
topic |
General Neuroscience |
spellingShingle |
General Neuroscience Vecino, Elena Ekström, Peter Distribution of met‐enkephalin, leu‐enkephalin, substance P, neuropeptide Y, FMRFamide, and serotonin immunoreactivities in the optic tectum of the Atlantic salmon ( Salmo salar L.) |
topic_facet |
General Neuroscience |
description |
Abstract The distribution of the neuropeptides methionine‐ and leucine‐enkephalins, substance P, FMRFamide, neuropeptide Y, and vasoactive intestinal peptide, as well as the biogenic amine serotonin was studied in the optic tectum of the Atlantic salmon by means of immunocytochemistry. Peroxidase‐antiperoxidase and indirect immunofluorescence methods were used to compare the differential laminar distribution of each of these substances. Nine parts of the optic tectum were selected for analysis on frontal sections: median, dorsolateral, and ventrolateral areas at rostral, medial, and caudal levels. Methionine‐ and leucine‐enkephalin immunoreactive fibers were found in discrete sublayers in the following strata: stratum opticum, stratum fibrosum et griseum superficiale, stratum griseum centrale, stratum, and album centrale. Most of the substance P‐, serotonin‐, and vasoactive intestinal peptide‐immunoreactive fibers were found in the stratum album centrale, whereas the FMRFamide‐ and neuropeptide Y‐immunoreactive fibers were more or less randomly distributed within most of the strata of the optic tectum. Neuropeptide Y‐immunoreactive cell bodies were located in the stratum periventriculare. We suggest an extrinsic origin for most of the immunoreactive fibers observed in the optic tectum, except for the neuropeptide Y‐immunoreactive fibers that probably originate in the periventricular neurons. Although retinal peptidergic input to the optic tectum has been proposed in other vertebrates, there is no evidence that any of the neuropeptidelike or serotonin immunoreactive fibers in the optic tectum of the salmon should be of retinal origin. Differences and similarities with the distribution of neuropeptides in the optic tectum in representatives of other vertebrate classes are discussed. |
format |
Article in Journal/Newspaper |
author |
Vecino, Elena Ekström, Peter |
author_facet |
Vecino, Elena Ekström, Peter |
author_sort |
Vecino, Elena |
title |
Distribution of met‐enkephalin, leu‐enkephalin, substance P, neuropeptide Y, FMRFamide, and serotonin immunoreactivities in the optic tectum of the Atlantic salmon ( Salmo salar L.) |
title_short |
Distribution of met‐enkephalin, leu‐enkephalin, substance P, neuropeptide Y, FMRFamide, and serotonin immunoreactivities in the optic tectum of the Atlantic salmon ( Salmo salar L.) |
title_full |
Distribution of met‐enkephalin, leu‐enkephalin, substance P, neuropeptide Y, FMRFamide, and serotonin immunoreactivities in the optic tectum of the Atlantic salmon ( Salmo salar L.) |
title_fullStr |
Distribution of met‐enkephalin, leu‐enkephalin, substance P, neuropeptide Y, FMRFamide, and serotonin immunoreactivities in the optic tectum of the Atlantic salmon ( Salmo salar L.) |
title_full_unstemmed |
Distribution of met‐enkephalin, leu‐enkephalin, substance P, neuropeptide Y, FMRFamide, and serotonin immunoreactivities in the optic tectum of the Atlantic salmon ( Salmo salar L.) |
title_sort |
distribution of met‐enkephalin, leu‐enkephalin, substance p, neuropeptide y, fmrfamide, and serotonin immunoreactivities in the optic tectum of the atlantic salmon ( salmo salar l.) |
publisher |
Wiley |
publishDate |
1990 |
url |
http://dx.doi.org/10.1002/cne.902990207 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fcne.902990207 https://onlinelibrary.wiley.com/doi/pdf/10.1002/cne.902990207 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Comparative Neurology volume 299, issue 2, page 229-241 ISSN 0021-9967 1096-9861 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/cne.902990207 |
container_title |
The Journal of Comparative Neurology |
container_volume |
299 |
container_issue |
2 |
container_start_page |
229 |
op_container_end_page |
241 |
_version_ |
1796938989150666752 |