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Titolo:
DIURNAL CHANGES OF BLOOD-PRESSURE, HEART-RATE AND BODY-TEMPERATURE DURING SLEEP IN THE RAT
Autore:
SEI H; FURUNO N; MORITA Y;
Indirizzi:
UNIV TOKUSHIMA,SCH MED,DEPT PHYSIOL TOKUSHIMA 770 JAPAN
Titolo Testata:
Journal of sleep research
fascicolo: 2, volume: 6, anno: 1997,
pagine: 113 - 119
SICI:
0962-1105(1997)6:2<113:DCOBHA>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
TRANSGENIC HYPERTENSIVE RATS; LIGHT-DARK CYCLES; CIRCADIAN VARIATION; SUPRACHIASMATIC LESIONS; HEMODYNAMIC ANALYSIS; RATE VARIABILITIES; SPECTRAL-ANALYSIS; NERVOUS-SYSTEM; MOTOR-ACTIVITY; RHYTHMS;
Keywords:
BLOOD PRESSURE; HEART RATE; BODY TEMPERATURE; DIURNAL RHYTHM; SLEEP; RAT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
43
Recensione:
Indirizzi per estratti:
Citazione:
H. Sei et al., "DIURNAL CHANGES OF BLOOD-PRESSURE, HEART-RATE AND BODY-TEMPERATURE DURING SLEEP IN THE RAT", Journal of sleep research, 6(2), 1997, pp. 113-119

Abstract

We have studied diurnal changes in mean arterial pressure (MAP), heart rate (HR) and body temperature (Tb) during wake (W), non-rapid eye movement sleep (NREMS) and REM sleep (REMS) in the rat. Although HR andTb show a similar sinusoidal diurnal variation during all vigilance states, the diurnal profile for the MAP is vigilance-state dependent. During W, MAP values are higher during the dark phase, during NREMS, nosignificant diurnal change is seen, and during REMS, the MAP exhibitsa reversed diurnal change, being higher during the light phase. The low frequency component (0.25-0.725 Hz) in the power spectral density of the blood pressure, an index of sympathetic activity, is also higherduring the light phase than the dark phase in REMS. The present findings suggest that diurnal changes in MAP in the rat result from the wake rhythm, and that the mechanism for the diurnal control of MAP may bedifferent from that for HR or Tb.

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Documento generato il 24/11/20 alle ore 13:42:15