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Titolo:
NONADRENERGIC NONCHOLINERGIC AUTONOMIC MEDIATION OF PRESSOR-RESPONSE TO FEEDING IN LAMBS
Autore:
JONES SA; LANGILLE BL; FRISE S; ADAMSON SL;
Indirizzi:
MT SINAI HOSP,SAMUEL LUNENFELD RES INST,DIV PERINATOL,600 UNIV AVE TORONTO M5G 1X5 ONTARIO CANADA MT SINAI HOSP,SAMUEL LUNENFELD RES INST,DIV PERINATOL,600 UNIV AVE TORONTO M5G 1X5 ONTARIO CANADA TORONTO HOSP,MAX BELL RES CTR TORONTO M5G 2C4 ON CANADA
Titolo Testata:
The American journal of physiology
fascicolo: 3, volume: 265, anno: 1993,
parte:, 2
pagine: 180000530 - 180000536
SICI:
0002-9513(1993)265:3<180000530:NNAMOP>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
NON-NORADRENERGIC AXONS; NEUROPEPTIDE-Y; CARDIOVASCULAR-RESPONSES; GUINEA-PIG; BLOOD-PRESSURE; CO-EXISTENCE; RAT; IMMUNOREACTIVITY; VASOCONSTRICTION; SYMPATHECTOMY;
Keywords:
BLOOD PRESSURE; NEWBORN; SHEEP; SYMPATHETIC; PARASYMPATHETIC; CHOLINERGIC; ADRENALECTOMY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
S.A. Jones et al., "NONADRENERGIC NONCHOLINERGIC AUTONOMIC MEDIATION OF PRESSOR-RESPONSE TO FEEDING IN LAMBS", The American journal of physiology, 265(3), 1993, pp. 180000530-180000536

Abstract

We examined factors mediating a 70% increase in arterial blood pressure that occurs during feeding in newborn lambs. We report that the increase in blood pressure during feeding was significantly reduced (to approximately 50%) and delayed in onset by combined alpha- and beta-adrenergic blockade. Plasma angiotensin and vasopressin levels did not increase significantly during feeding, nor was the pressor response to feeding attenuated while using captopril to block the production of angiotensin II. Adrenalectomy or muscarinic cholinergic blockade with atropine was also unsuccessful in attenuating the pressor response to feeding. We demonstrated that the component of the pressor response to feeding that was insensitive to alpha, beta, and muscarinic blockade wasmediated by the autonomic nervous system because it was completely eliminated by ganglionic blockade with hexamethonium. Thus nonadrenergicnoncholinergic autonomic mechanisms mediate approximately half the pressor response to feeding in lambs.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 04:57:19