Christoph P N Romanowski

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Although total sleep deprivation is frequently used in sleep research, the techniques used such as gentle handling are labor consuming and not standardized (and boring). In order to minimize these limitations, we developed a fully automated setup, which can be used for total sleep deprivation. A shortfall of individually adjustable thresholds of(More)
STUDY OBJECTIVES Corticotropin-releasing hormone (CRH) is the major activator of the hypothalamic-pituitary-adrenocortical (HPA) system and orchestrates the neuroendocrine, autonomous as well as behavioral responses to stress. Many studies suggest an influence of CRH on sleep-wake regulation even in the absence of stressors. However, none of these studies(More)
It is widely accepted that orexin (hypocretin) bears wake-promoting effects. While under normal conditions the circadian rhythm of orexin release has a clear circadian distribution, the amplitude of orexin fluctuation is dampened in depression. Interestingly, clinical symptoms of depression include several sleep disturbances. In this disease,(More)
FK506-binding protein 51 (FKBP51) is a co-chaperone of the glucocorticoid receptor, functionally linked to its activity via an ultra-short negative feedback loop. Thus, FKBP51 plays an important regulatory role in the hypothalamic-pituitary-adrenocortical (HPA) axis necessary for stress adaptation and recovery. Previous investigations illustrated that HPA(More)
Plasminogen activator inhibitor-type 1 (PAI-1) is involved in the fibrinolytic system and shows its increased levels in diseases, e.g., obesity and sleep apnea syndrome. The aim of the study is to investigate whether PAI-1 affects sleep-wake patterns in mice. When recombinant mouse PAI-1 was administered intraperitoneally, only rapid but short increases in(More)
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