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Enkephalin-immunoreactive cells in the mesencephalic tegmentum project to the optic tectum of the teleosts Salmo gairdneri and Salmo salar

Vecino, Elena ; Ekström, Peter LU and Sharma, Sansar C. (1991) In Cell and Tissue Research 264(1). p.133-137
Abstract

Immunocytochemistry using antibodies against Met-enkephalin and Leu-enkephalin has demonstrated a group of large enkephalin-immunoreactive neurons in the nucleus of the rostral mesencephalic tegmentum (mRMT) of two teleost fish, Salmo gairdneri and Salmo salar. Injections of cobalt-lysine in the medial optic tectum retrogradely labeled the above group of tegmental neurons. Tegmental neurons were labeled only ipsilaterally to the injection site. This indicates that enkephalinergic neurons in the nRMT project to the optic tectum, and that at least some of the enkephalinergic axons observed in the optic tectum belong to a tegmento-tectal pathway. Comparable enkephalinergic pathways have been described in reptiles and birds, where... (More)

Immunocytochemistry using antibodies against Met-enkephalin and Leu-enkephalin has demonstrated a group of large enkephalin-immunoreactive neurons in the nucleus of the rostral mesencephalic tegmentum (mRMT) of two teleost fish, Salmo gairdneri and Salmo salar. Injections of cobalt-lysine in the medial optic tectum retrogradely labeled the above group of tegmental neurons. Tegmental neurons were labeled only ipsilaterally to the injection site. This indicates that enkephalinergic neurons in the nRMT project to the optic tectum, and that at least some of the enkephalinergic axons observed in the optic tectum belong to a tegmento-tectal pathway. Comparable enkephalinergic pathways have been described in reptiles and birds, where pretectal-mesencephalic nuclei contribute to the enkephalin-containing fibers that project to the optic tectum.

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author
organization
publishing date
type
Contribution to journal
publication status
published
keywords
Cobalt-lysine, Enkephalins, Immunocytochemistry, Retrograde labeling, Salmo gairdneri, Salmo salar (Teleostei), Tectum opticum, Tegmentum mesencephali
in
Cell and Tissue Research
volume
264
issue
1
pages
5 pages
publisher
Springer
external identifiers
  • scopus:0026035536
  • pmid:1905200
ISSN
0302-766X
DOI
10.1007/BF00305731
language
English
LU publication?
yes
id
ca349a22-5990-445e-bc05-abc9f6318fe3
date added to LUP
2019-10-03 09:13:58
date last changed
2020-05-24 06:26:39
@article{ca349a22-5990-445e-bc05-abc9f6318fe3,
  abstract     = {<p>Immunocytochemistry using antibodies against Met-enkephalin and Leu-enkephalin has demonstrated a group of large enkephalin-immunoreactive neurons in the nucleus of the rostral mesencephalic tegmentum (mRMT) of two teleost fish, Salmo gairdneri and Salmo salar. Injections of cobalt-lysine in the medial optic tectum retrogradely labeled the above group of tegmental neurons. Tegmental neurons were labeled only ipsilaterally to the injection site. This indicates that enkephalinergic neurons in the nRMT project to the optic tectum, and that at least some of the enkephalinergic axons observed in the optic tectum belong to a tegmento-tectal pathway. Comparable enkephalinergic pathways have been described in reptiles and birds, where pretectal-mesencephalic nuclei contribute to the enkephalin-containing fibers that project to the optic tectum.</p>},
  author       = {Vecino, Elena and Ekström, Peter and Sharma, Sansar C.},
  issn         = {0302-766X},
  language     = {eng},
  month        = {04},
  number       = {1},
  pages        = {133--137},
  publisher    = {Springer},
  series       = {Cell and Tissue Research},
  title        = {Enkephalin-immunoreactive cells in the mesencephalic tegmentum project to the optic tectum of the teleosts Salmo gairdneri and Salmo salar},
  url          = {http://dx.doi.org/10.1007/BF00305731},
  doi          = {10.1007/BF00305731},
  volume       = {264},
  year         = {1991},
}