Cited by 108Heart Rate Variability and Autonomic ControlSleep and Wakefulness ResearchBlood Pressure and Hypertension Studies

Effects of selective slow-wave sleep deprivation on nocturnal blood pressure dipping and daytime blood pressure regulation

Sayk, Friedhelm, Teckentrup, Christina, Becker, Christoph, Heutling, Dennis, Wellhöner, Peter, Lehnert, Hendrik, Dodt, Christoph·2010·American Journal of Physiology-Regulatory, Integrative and Comparative Physiology

Abstract

Nocturnal blood pressure (BP) decline or “dipping” is an active, central, nervously governed process, which is important for BP regulation during daytime. It is, however, not known whether the sleep process itself or, more specifically, slow-wave sleep (SWS) is important for normal dipping. Therefore, in the present study, healthy subjects (6 females, 5 males) were selectively deprived of SWS by EEG-guided acoustic arousals. BP and heart rate (HR) were monitored during experimental nights and the following day. Additionally, nocturnal catecholamine excretion was determined, and morning baroreflex function was assessed by microneurographic measurements of muscle sympathetic nerve activity (MSNA) and heart rate variability (HRV). Data were compared with a crossover condition of undisturbed sleep. SWS was successfully deprived leading to significantly attenuated mean arterial BP dipping during the first half ( P < 0.05), but not during the rapid-eye-movement-dominated second half of total sleep; however, dipping still evolved even in the absence of SWS. No differences were found for nighttime catecholamine excretion. Moreover, daytime resting and ambulatory BP and HR were not altered, and morning MSNA and HRV did not differ significantly, indicating that baroreflex-mediated sympathoneural BP regulation was not affected by the preceding SWS deprivation. We conclude that in healthy humans the magnitude of nocturnal BP dipping is significantly affected by sleep depth. Deprivation of SWS during one night does not modulate the morning threshold and sensitivity of the vascular and cardiac baroreflex and does not alter ambulatory BP during daytime.

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Crossref · 10.1152/ajpregu.00368.2009

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Authors
Sayk, F., Teckentrup, C., Becker, C., Heutling, D., Wellhöner, P., Lehnert, H., & Dodt, C.
Affiliations
  • University Hospital Schleswig-Holstein (DE)
  • University of Warwick (GB)
  • München Klinik Bogenhausen (DE)
Corresponding author
Sayk, Friedhelm
Venue
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
Published
2010-01
Volume
298
Issue
1
Pages
R191-R197
ISSN
  • 0363-6119 (ISSN-L)
  • 1522-1490
OpenAlex
W2137249854
Cited by
108
References
36
Citations by year
2026: 3 · 2025: 4 · 2024: 7 · 2023: 8 · 2022: 11 · 2021: 7 · 2020: 8 · 2019: 4 · 2018: 4 · 2017: 11 · 2016: 8 · 2015: 5 · 2014: 9 · 2013: 4 · 2012: 5
FWCI
3.24
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Regulatory, Integrative and Comparative Physiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
Keywords
slow-wave sleep, sleep deprivation, nocturnal blood pressure dipping, blood pressure regulation, baroreflex, muscle sympathetic nerve activity, heart rate variability, catecholamine excretion, sleep depth, ambulatory blood pressure, heart rate
MeSH terms
Adult, Blood Pressure, Circadian Rhythm, Electrocardiography, Electroencephalography, Female, Heart Rate, Humans, Hypertension, Male, Sleep Deprivation, Sleep, REM, Sympathetic Nervous System, Baroreflex

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