期刊
SLEEP MEDICINE REVIEWS
卷 14, 期 3, 页码 161-165出版社
W B SAUNDERS CO LTD
DOI: 10.1016/j.smrv.2009.09.001
关键词
NPY; CRH; Sleep regulation; Basal Forebrain (BF)
资金
- European Union [MCRTN-CT-2004-512362]
- ISPPC-CHU de Charleroi
Neuropeptide Y (NPY), a 36-amino-acid peptide from the pancreatic polypeptide family, is one of the more abundant peptides in the central nervous system. It acts as a neurohormone and as a neuromodulator. NPY is widely distributed in the brain, particularly the hypothalamus, the amygdala, the locus coeruleus and the cerebral cortex. At least six NPY receptors subtypes have been identified. NPY is involved in the regulation of several physiological functions such as food intake, hormonal release, circadian rhythms, cardiovascular disease, thermoregulation, stress response, anxiety and sleep. Sleep promoting effects of NPY as well as wakefulness effects of NPY were found in animals, depending on the site of injection as well as on the functional state of the structure. In humans, NPY was found to have hypnotic properties, possibly acting as a physiological antagonist of corticotropin-releasing hormone (CRH). In conclusion, NPY participates in sleep regulation in humans, particularly in the timing of sleep onset and may as such play a role in the integration of sleep regulation, food intake and metabolism. (C) 2009 Elsevier Ltd. All rights reserved.
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