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Titolo:
CIRCADIAN AND SHORT-TERM VARIABILITIES IN BLOOD-PRESSURE AND HEART-RATE MEASURED BY TELEMETRY IN RABBITS AND RATS
Autore:
SATO K; CHATANI F; SATO S;
Indirizzi:
TAKEDA CHEM IND LTD,DEPT 1,DRUG SAFETY RES LABS,6-10-1 HIMURO CHO TAKATSUKI OSAKA 569 JAPAN
Titolo Testata:
Journal of the autonomic nervous system
fascicolo: 3, volume: 54, anno: 1995,
pagine: 235 - 246
SICI:
0165-1838(1995)54:3<235:CASVIB>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARDIOVASCULAR VARIABILITY; NERVOUS-SYSTEM; FLUCTUATIONS; EXERCISE; ANIMALS; RHYTHM;
Keywords:
CIRCADIAN RHYTHM; HEMODYNAMIC VARIABILITY; ARTERIAL PRESSURE; TELEMETRY; RABBIT; RAT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
31
Recensione:
Indirizzi per estratti:
Citazione:
K. Sato et al., "CIRCADIAN AND SHORT-TERM VARIABILITIES IN BLOOD-PRESSURE AND HEART-RATE MEASURED BY TELEMETRY IN RABBITS AND RATS", Journal of the autonomic nervous system, 54(3), 1995, pp. 235-246

Abstract

Blood pressure (BP) and heart rate (HR) were measured by telemetry inconscious unrestrained rabbits to clarify the profile of their variabilities. The variabilities were assessed for two periods, 24 h (circadian rhythm) and 1 h (short-term variability), and compared with those in rats. BP and HR in rabbits were lower than those in rats but the circadian rhythms in rabbits showed nocturnal patterns as is the case inrats. In contrast, short-term variabilities in BP in rabbits were considerably larger than those in rats. The short-term variability in BP in rabbits was suppressed by alpha-adrenergic blocking without changesin basal values but not by beta-adrenergic blocking or angiotensin converting enzyme inhibition. These results demonstrate the need to takethe unique characteristics of short-term variability in BP in rabbit into consideration when the circadian rhythm is focused on and that the short-term variability in BP in rabbits is caused mainly by activation of alpha-adrenergic receptors.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/07/20 alle ore 12:11:44