[Participation of muscarinic and nicotinic cholinoreceptors of hypothalamus preoptic area in control of wakefulness and sleep states and of thermoregulation in pigeons Columbia livia].
Zh Evol Biokhim Fiziol
; 43(4): 332-6, 2007.
Article
en Ru
| MEDLINE
| ID: mdl-17933346
By using electrophysiological methods, it has been established that muscarinic (M-) cholinergic mechanisms of the ventrolateral preoptic area (VLPA) of pigeon hypothalamus participate in maintenance of wakefulness, whereas nicotinic (N-) mechanisms--in maintenance of the slow-wave sleep. Activation of the VLPA M-cholinergic receptors has been found to be accompanied by an elevation of the brain temperature, by development of peripheral vasoconstriction, and by an increase in the muscle contractive activity. Activation of N-cholinoreceptors leads to a decrease in the brain temperature and development of peripheral vasoconstriction. It is suggested that the VLPA M- and N-cholinergic receptors are involved in different mechanisms of regulation of wakefulness and sleep states and brain temperature in pigeons.
Buscar en Google
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Columbidae
/
Área Preóptica
/
Sueño
/
Vigilia
/
Regulación de la Temperatura Corporal
/
Receptores Nicotínicos
/
Receptores Muscarínicos
Límite:
Animals
Idioma:
Ru
Revista:
Zh Evol Biokhim Fiziol
Año:
2007
Tipo del documento:
Article
Pais de publicación:
Rusia