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Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice
08:58

Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice

Published on: June 19, 2019

Central control of cardiovascular function during sleep.

Alessandro Silvani1, Roger A L Dampney

  • 1Department of Biomedical and Neuromotor Sciences, University of Bologna, Italy; and.

American Journal of Physiology. Heart and Circulatory Physiology
|October 8, 2013
PubMed
Summary
This summary is machine-generated.

Cardiovascular control during sleep, including non-rapid-eye-movement sleep and rapid-eye-movement sleep, influences cardiovascular risk. Understanding these autonomic mechanisms and neural circuits is crucial for managing heart health.

Keywords:
blood pressurecentral autonomic commandsheart ratehypocretins/orexinssleepsympathetic nerve activity

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Last Updated: May 7, 2026

Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice
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Published on: June 19, 2019

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Area of Science:

  • Neuroscience
  • Cardiovascular Physiology
  • Sleep Medicine

Background:

  • Growing evidence links cardiovascular control during sleep to cardiovascular risk.
  • Understanding the physiological mechanisms of sleep-related cardiovascular regulation is essential.
  • Autonomic nervous system activity varies significantly between sleep states.

Purpose of the Study:

  • To review current knowledge on the autonomic features of non-rapid-eye-movement sleep (NREMS) and rapid-eye-movement sleep (REMS).
  • To propose testable hypotheses regarding the neural circuits underlying sleep-related cardiovascular control.
  • To elucidate the role of central autonomic commands and orexin peptides in regulating blood pressure during sleep.

Main Methods:

  • Review of existing literature on sleep states and cardiovascular control.
  • Analysis of autonomic features during NREMS and REMS.
  • Hypothesizing neural pathways involved in central autonomic commands during sleep.

Main Results:

  • NREMS is characterized by generalized cardiovascular deactivation and baroreflex resetting, leading to blood pressure dipping, driven by central autonomic commands.
  • REMS shows increased blood pressure compared to NREMS due to opposing regional vascular resistance changes and transient BP increases linked to brain/muscle activity.
  • Orexin peptides may play a key role in mediating sleep-related blood pressure changes by targeting central autonomic pathways.

Conclusions:

  • Sleep states profoundly influence cardiovascular function through distinct autonomic patterns.
  • Central autonomic commands originating from specific brain regions orchestrate these sleep-related cardiovascular adjustments.
  • Further experimental research is needed to validate proposed neural pathways and mechanisms for sleep-related cardiovascular regulation.