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Título: Chemocytoarchitecture of the rat locus ceruleus
Fecha de publicación: 1993
Editorial: Murcia : F. Hernández
ISSN: 0213-3911
Materias relacionadas: CDU::6 - Ciencias aplicadas::61 - Medicina
Palabras clave: Locus ceruleus
Immunocytochemistry
Resumen: I shall elaborate on the cytochemical classifications of the rat locus ceruleus (LC) and state how each of these could be identified. In the LC, 80% ( 1,30911,642) of the noradrenergic (NA) neurons are also GABAergic. This is found by demonstrating that two immunoreactivities coexist in adjacent sections alternately immunostained by anti-TH or anti-GABA antibody. Pharmacological manipulations with pargyline (75 mglkg, i.p., 2 h prior to perfusion) and L-tryptophan (1 50 mglkg, 1.5 h prior to perfusion) revealed 5-HT-like immunoreactivity (5-HT-LI) in most LC cells (masked 5-HT cells) that produce 5-HT but not other indoleamines. If 5-HTP is applied instead of tryptophan, 5-HT-L1 is shown by the raphe nuclei and a few LC cells (masked indoleamine cells) in the marginal zone. Anti- GAD antibody reveals GAD-L1 in 32% of GABA neurons predominantly in the dorsal division. In situ hybridization studies detected tryptophan hydroxylase mRNA and GAD mRNA in many small- and mediumsized neurons. It is concluded that the LC consists mostly of an NA population that is possibly synthesizing multiple transmitters, such as GABA, GAD and 5-HT in single neurons so that the system enables the LC simultaneously to innervate the entire CNS.
Autor/es principal/es: Lijima, K.
Publicado en: Histology and histopathology
URI: http://hdl.handle.net/10201/18434
Tipo de documento: info:eu-repo/semantics/article
Número páginas / Extensión: 11
Derechos: info:eu-repo/semantics/openAccess
Aparece en las colecciones:Vol. 8, nº 3 (1993)

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