Abstract
The quality of life of hemodialysis (HD) patients is hampered by reduced nocturnal sleep quality and excessive daytime sleepiness. In addition to the sleep/wake cycle, levels of circadian biomarkers (e.g. melatonin) are disturbed in end-stage renal disease (ESRD). This suggests impaired circadian clock performance in HD patients, but the underlying mechanism is unknown. In this observational study, diurnal rhythms of sleep, serum melatonin and cortisol concentrations and clock gene mRNA expression are compared between HD patients (n = 9) and healthy control subjects (n = 9). In addition, the presence of circulating factors that might affect circadian rhythmicity is tested in vitro with cell culture experiments. Reduced sleep quality (median sleep onset latency [interquartile range] of 23.9 [17.3] min for patients versus 5.0 [10] minutes for controls, p
Original language | English |
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Pages (from-to) | 848-857 |
Number of pages | 10 |
Journal | Chronobiology International |
Volume | 32 |
Issue number | 6 |
DOIs | |
Publication status | Published - Jul 2015 |
Externally published | Yes |
Keywords
- Circadian clock
- clock genes
- clock synchronization
- cortisol
- end-stage renal disease
- hemodialysis
- melatonin
- sleep
- GENE-EXPRESSION
- MELATONIN
- CLOCK
- SLEEP
- VARIABILITY
- KIDNEY
- PERIOD
- MICE