Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
VENTROMEDIAL HYPOTHALAMUS LESIONS INCREASE THE DIPSOGENIC RESPONSES AND REDUCE THE PRESSOR-RESPONSES TO MEDIAN PREOPTIC AREA ACTIVATION
Autore:
BASTOS R; MENANI JV; SAAD WA; RENZI A; SILVEIRA JEN; CAMARGO LADA;
Indirizzi:
PAULISTA STATE UNIV,UNESP,SCH DENT,DEPT PHYSIOL,1680 HUMAITA ST BR-14801903 ARARAQUARA SP BRAZIL PAULISTA STATE UNIV,UNESP,SCH DENT,DEPT PHYSIOL BR-14801903 ARARAQUARA SP BRAZIL
Titolo Testata:
Physiology & behavior
fascicolo: 2, volume: 62, anno: 1997,
pagine: 311 - 316
SICI:
0031-9384(1997)62:2<311:VHLITD>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
VENTRAL LAMINA TERMINALIS; VENTRICLE AV3V REGION; ANGIOTENSIN-II; CARDIOVASCULAR-RESPONSES; ADRENERGIC PATHWAYS; DRINKING RESPONSE; SALINE INGESTION; RENAL EXCRETION; BASAL FOREBRAIN; INDUCED THIRST;
Keywords:
WATER INTAKE; ARTERIAL PRESSURE; ANG II; ADRENERGIC AGONISTS; MNPO; VMH;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
44
Recensione:
Indirizzi per estratti:
Citazione:
R. Bastos et al., "VENTROMEDIAL HYPOTHALAMUS LESIONS INCREASE THE DIPSOGENIC RESPONSES AND REDUCE THE PRESSOR-RESPONSES TO MEDIAN PREOPTIC AREA ACTIVATION", Physiology & behavior, 62(2), 1997, pp. 311-316

Abstract

In this study, we investigated the participation of adrenergic receptors of the median preoptic area (MnPO) and the participation of ventromedial hypothalamus (VMH) in angiotensin II- (ANG II)-induced water intake and presser responses. Male rats with sham or electrolytic VMH lesions and a stainless steel cannula implanted into the MnPO were used. Noradrenaline, clonidine (an alpha(2)-adrenergic receptor agonist), or phenylephrine (an alpha(1)-adrenergic receptor agonist) injected into the MnPO of sham-lesioned rats reduced water ingestion induced by ANG II injected into the same area. In VMH-lesioned rats ANG II-induced water intake increased with a previous injection of noradrenaline, phenylephrine, or isoproterenol. The presser response induced by ANG II injected into the MnPO was reduced in VMH-lesioned rats, whereas the presser response induced by clonidine was abolished. Previous treatment with noradrenaline and phenylephrine into the MnPO of sham-lesioned rats produced a presser response, and a hypotensive response was obtained with the previous administration of noradrenaline, phenylephrine or isoproterenol into the MnPO of VMH-lesioned rats. These results show that VMH is essential for the dipsogenic and presser responses induced by adrenergic and angiotensinergic activation of the MnPO in rats. (C)1997 Elsevier Science Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 16:35:39