Extracellular signal-regulated kinases1/2 in neurons of the dorsal motor nucleus of the vagus nerve and nucleus of the solitary tract are activated by noxious visceral stimulus in mice.
Neurosci Lett
; 334(2): 103-6, 2002 Dec 13.
Article
em En
| MEDLINE
| ID: mdl-12435482
ABSTRACT
Phosphorylated extracellular signal-regulated kinases1/2 (pERK1/2) -like immunoreactivity (LI) was enhanced in the neurons of the nucleus of the solitary tract (NTS) and dorsal motor nucleus of the vagus nerve (DMV) 8 min after an intraperitoneal injection of acetic acid in the mouse; the enhancement in pERK1/2-LI was suppressed after vagotomy. With immunofluorescent double labeling technique, the co-localization of acetic acid-induced pERK1/2 and tyrosine hydroxylase-LIs was observed in some of the NTS and DMV neurons. These results suggest that ERK1/2 signal-transducting pathway is involved in neuronal activities in NTS and DMV which are induced by vagus-conveyed nociceptive visceral information, and that some of these pERK1/2- immunoreactive neurons in NTS and DMV are catecholaminergic.
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Base de dados:
MEDLINE
Assunto principal:
Núcleo Solitário
/
EIF-2 Quinase
/
Proteínas Quinases Ativadas por Mitógeno
/
Neurônios
Limite:
Animals
Idioma:
En
Revista:
Neurosci Lett
Ano de publicação:
2002
Tipo de documento:
Article