Branchiomotor activities in mouse embryo.
Neuroreport
; 11(1): 141-5, 2000 Jan 17.
Article
em En
| MEDLINE
| ID: mdl-10683846
ABSTRACT
Using a novel isolated hindbrain in vitro preparation, we demonstrate that, in the mouse, branchiomotor activities from trigeminal, facial, glossopharyngeal and vagal nerves start during segmentation, a crucial and conserved period of hindbrain embryogenesis. At embryonic day (E) 10.5, branchiomotor nerves are independently active in bursts, become coactive at a low frequency (about 0.5 min-1) at E12.5, before high frequency (about 15 min-1) fetal breathing starts at E14.5. Comparison with observations in chick reveals a transient episodic rhythmic pattern highly similar in mouse at E13.5 and chick at E7. This pattern is proposed as a marker identifying a phylotypic stage during the development of hindbrain neuronal networks in vertebrates.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Rombencéfalo
/
Embrião de Mamíferos
/
Atividade Motora
Limite:
Animals
/
Pregnancy
Idioma:
En
Revista:
Neuroreport
Assunto da revista:
NEUROLOGIA
Ano de publicação:
2000
Tipo de documento:
Article
País de afiliação:
França