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Neuropeptide Y and sleep
Michal Dyzma1, Karim Z Boudjeltia, Brice Faraut
1Sleep Laboratory, CHU de Charleroi, A. Vésale Hospital, Université Libre de Bruxelles, Unit 222, Rue de Gozée 706, 6110 Montigny-le-Tilleul, Belgium.
Sleep Medicine Reviews
|February 4, 2010
Summary
Neuropeptide Y (NPY) influences human sleep timing. This peptide, acting as a neurohormone and neuromodulator, may integrate sleep, food intake, and metabolism regulation.
Area of Science:
- Neuroscience
- Endocrinology
Background:
- Neuropeptide Y (NPY) is a 36-amino-acid peptide abundant in the central nervous system.
- NPY functions as both a neurohormone and neuromodulator, with widespread brain distribution, particularly in the hypothalamus and amygdala.
- Six NPY receptor subtypes have been identified, mediating diverse physiological functions.
Purpose of the Study:
- To investigate the role of Neuropeptide Y (NPY) in human sleep regulation.
- To explore NPY's potential function as a physiological antagonist of corticotropin-releasing hormone (CRH).
Main Methods:
- Review of existing literature on NPY's physiological functions and effects on sleep.
- Analysis of studies investigating NPY's hypnotic properties in humans.
Main Results:
- NPY exhibits sleep-promoting effects in animals, though wakefulness effects have also been observed depending on injection site and brain region.
- In humans, NPY demonstrates hypnotic properties.
- NPY may act as a physiological antagonist to corticotropin-releasing hormone (CRH).
Conclusions:
- Neuropeptide Y (NPY) plays a role in human sleep regulation, specifically in the timing of sleep onset.
- NPY may integrate the regulation of sleep, food intake, and metabolism.
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