• Medientyp: E-Artikel
  • Titel: Recovery sleep after extended wakefulness restores elevated A 1 adenosine receptor availability in the human brain
  • Beteiligte: Elmenhorst, David [VerfasserIn]; Elmenhorst, Eva-Maria [VerfasserIn]; Hennecke, Eva [VerfasserIn]; Kroll, Tina [VerfasserIn]; Matusch, Andreas [VerfasserIn]; Aeschbach, Daniel [VerfasserIn]; Bauer, Andreas [VerfasserIn]
  • Erschienen: National Acad. of Sciences, 2017
  • Erschienen in: Proceedings of the National Academy of Sciences of the United States of America 114(16), 4243-4248/201614677 (2017). doi:10.1073/pnas.1614677114
  • Sprache: Englisch
  • DOI: https://doi.org/10.1073/pnas.1614677114
  • ISSN: 0027-8424; 1091-6490
  • Entstehung:
  • Anmerkungen: Diese Datenquelle enthält auch Bestandsnachweise, die nicht zu einem Volltext führen.
  • Beschreibung: Adenosine and functional A1 adenosine receptor (A1AR) availability are supposed to mediate sleep–wake regulation and cognitive performance. We hypothesized that cerebral A1AR availability after an extended wake period decreases to a well-rested state after recovery sleep. [18F]CPFPX positron emission tomography was used to quantify A1AR availability in 15 healthy male adults after 52 h of sleep deprivation and following 14 h of recovery sleep. Data were additionally compared with A1AR values after 8 h of baseline sleep from an earlier dataset. Polysomnography, cognitive performance, and sleepiness were monitored. Recovery from sleep deprivation was associated with a decrease in A1AR availability in several brain regions, ranging from 11% (insula) to 14% (striatum). A1AR availabilities after recovery did not differ from baseline sleep in the control group. The degree of performance impairment, sleepiness, and homeostatic sleep-pressure response to sleep deprivation correlated negatively with the decrease in A1AR availability. Sleep deprivation resulted in a higher A1AR availability in the human brain. The increase that was observed after 52 h of wakefulness was restored to control levels during a 14-h recovery sleep episode. Individuals with a large increase in A1AR availability were more resilient to sleep-loss effects than those with a subtle increase. This pattern implies that differences in endogenous adenosine and A1AR availability might be causal for individual responses to sleep loss.
  • Zugangsstatus: Freier Zugang