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Neuroreport. 1996 Jan 31;7(2):529-33.

Modulation of IL-1 beta gene expression in the rat CNS during sleep deprivation.

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1
Department of Psychiatry; Center for Sleep and Respiratory Neurobiology, Philadelphia, PA 19104-4283, USA.

Abstract

We hypothesize that sleep homeostasis involves, at least in part, the immune system modulator interleukin-1 beta (IL-1 beta). Using the reverse transcription-polymerase chain reaction, IL-1 beta mRNA levels in the rat CNS were evaluated after a period of sleep deprivation. In addition, IL-1 beta gene expression was analyzed before the projected onset of activity and rest phase in free-running animals. No changes in IL-1 beta mRNA were observed in the circadian cycle, but 24 h of sleep deprivation resulted in a 2-fold increase in the level of IL-1 beta mRNA in the hypothalamus and in the brain stem compared with controls (p < 0.0002 and (p < 0.0001 respectively). The alteration in IL-1 beta mRNA levels following sleep deprivation supports the hypothesis that modulation of IL-1 beta gene expression is involved in the sleep homeostatic process.

[Indexed for MEDLINE]

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