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Titolo:
Histochemical and immunocytochemical investigations of the marginal nucleiin the spinal cord of pigeons (Columba livia)
Autore:
Milinski, T; Necker, R;
Indirizzi:
Ruhr Univ Bochum, Inst Tierphysiol, D-44780 Bochum, Germany Ruhr Univ Bochum Bochum Germany D-44780 physiol, D-44780 Bochum, Germany
Titolo Testata:
BRAIN RESEARCH BULLETIN
fascicolo: 1, volume: 56, anno: 2001,
pagine: 15 - 21
SICI:
0361-9230(20010901)56:1<15:HAIIOT>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
STRETCH-RECEPTOR NEURONS; CHOLINE-ACETYLTRANSFERASE; SCYLIORHINUS-CANICULA; AXONAL PROJECTIONS; ACCESSORY LOBES; GABA; GLUTAMATE; LAMPREY; GLYCINE; LOCOMOTION;
Keywords:
lumbosacral spinal cord; accessory lobes; neurotransmitters; choline acetyltransferase; NADPH-diaphorase;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Necker, R Ruhr Univ Bochum, Inst Tierphysiol, D-44780 Bochum, Germany RuhrUniv Bochum Bochum Germany D-44780 -44780 Bochum, Germany
Citazione:
T. Milinski e R. Necker, "Histochemical and immunocytochemical investigations of the marginal nucleiin the spinal cord of pigeons (Columba livia)", BRAIN RES B, 56(1), 2001, pp. 15-21

Abstract

In birds there are segmentally organized marginal nuclei at the lateral orventrolateral border of the spinal cord. In most regions of the spinal cord these nuclei are within the outline of the cord. However, in the lumbosacral region they form accessory lobes protruding into the vertebral canal. Histochemical and immunocytochemical investigations were performed to study the neurochemical features of the marginal nuclei of the pigeon. Despite histological differences (only accessory lobe neurons are embedded in glia-derived glycogen cells), there was no difference in the chemical neuroanatomyof the two types of marginal nuclei. These nuclei contained cholinergic neurons and there was also evidence for a cholinergic innervation. NADPH-diaphorase activity, which is considered to indicate nitric oxide synthesis, was faint in marginal neurons. No serotonin immunoreactivity was found. However, all neurons showed immunoreactivity to glutamate and glycine, and some were immunoreactive to gamma -aminobutyric acid (GABA). A GABAergic innervation of non-GABAergic neurons could also be demonstrated. The lack of difference in the chemical neuroanatomical features between cervical marginal nuclei and lumbosacral accessory lobes suggests a similar origin of all marginal neurons. A comparison with the chemical neuroanatomy of marginal neurons in other vertebrates shows both similarities and differences. (C) 2001 Elsevier Science Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/03/20 alle ore 00:52:01