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Modulation of Sleep Homeostasis by Corticotropin Releasing Hormone in REM Sleep-Deprived Rats
Joint Authors
Tufik, Sergio
Machado, Ricardo Borges
Suchecki, Deborah
Source
International Journal of Endocrinology
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-06-13
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Abstract EN
Studies have shown that sleep recovery following different protocols of forced waking varies according to the level of stress inherent to each method.
Sleep deprivation activates the hypothalamic-pituitary-adrenal axis and increased corticotropin-releasing hormone (CRH) impairs sleep.
The purpose of the present study was to evaluate how manipulations of the CRH system during the sleep deprivation period interferes with subsequent sleep rebound.
Throughout 96 hours of sleep deprivation, separate groups of rats were treated i.c.v.
with vehicle, CRH or with alphahelical CRH9-41, a CRH receptor blocker, twice/day, at 07:00 h and 19:00 h.
Both treatments impaired sleep homeostasis, especially in regards to length of rapid eye movement sleep (REM) and theta/delta ratio and induced a later decrease in NREM and REM sleep and increased waking bouts.
These changes suggest that activation of the CRH system impact negatively on the homeostatic sleep response to prolonged forced waking.
These results indicate that indeed, activation of the HPA axis—at least at the hypothalamic level—is capable to reduce the sleep rebound induced by sleep deprivation.
American Psychological Association (APA)
Machado, Ricardo Borges& Tufik, Sergio& Suchecki, Deborah. 2010. Modulation of Sleep Homeostasis by Corticotropin Releasing Hormone in REM Sleep-Deprived Rats. International Journal of Endocrinology،Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-463710
Modern Language Association (MLA)
Machado, Ricardo Borges…[et al.]. Modulation of Sleep Homeostasis by Corticotropin Releasing Hormone in REM Sleep-Deprived Rats. International Journal of Endocrinology No. 2010 (2010), pp.1-12.
https://search.emarefa.net/detail/BIM-463710
American Medical Association (AMA)
Machado, Ricardo Borges& Tufik, Sergio& Suchecki, Deborah. Modulation of Sleep Homeostasis by Corticotropin Releasing Hormone in REM Sleep-Deprived Rats. International Journal of Endocrinology. 2010. Vol. 2010, no. 2010, pp.1-12.
https://search.emarefa.net/detail/BIM-463710
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-463710