title: Sleep EEG effects of anti-gluco- and anti-mineralocorticoids in old-aged men: pilot study.
abstract: OBJECTIVE
  Age-related sleep changes have been associated with altered hypothalamic-pituitary-adrenal axis reactivity and impaired feedback inhibition at the glucocorticoid (GR) and mineralocorticoid (MR) receptor level. To further investigate the specific role of this binary receptor system in the elderly, sleep electroencephalogram (EEG) effects of the MR antagonist spironolactone and GR antagonist mifepristone in old-aged men were compared in this pilot study.
  
  
  METHODS
  Old-aged healthy men (n = 6, 65-91 years) were treated on three occasions in a single-blinded design in random order with mifepristone, spironolactone and placebo, respectively, and nocturnal sleep EEG was recorded.
  
  
  RESULTS
  Mifepristone led to increased wake time, decreased stage 2 and rapid eye movement (REM) sleep and prolonged REM sleep latency in the first half of the night, whereas spironolactone had no considerable effects on sleep EEG.
  
  
  CONCLUSIONS
  GR antagonism can potentiate age-related sleep pattern alterations and further support the role of impaired GR signaling in age-related changes in sleep architecture.
authors.affiliation: Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
authors.forename: Cüneyt
authors.initials: C
authors.lastname: Demiralay
authors.forename: Agorastos
authors.initials: A
authors.lastname: Agorastos
authors.forename: Axel
authors.initials: A
authors.lastname: Steiger
authors.forename: Klaus
authors.initials: K
authors.lastname: Wiedemann
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000187:drug effects / Q000502:physiology; D004569:Electroencephalography / Q000187:drug effects*; D006801:Humans; D008297:Male; D015735:Mifepristone / Q000494:pharmacology*; D000451:Mineralocorticoid Receptor Antagonists / Q000494:pharmacology*; D010865:Pilot Projects; D011965:Receptors, Glucocorticoid / Q000037:antagonists & inhibitors*; D016037:Single-Blind Method; D012894:Sleep Stages / Q000187:drug effects* / Q000502:physiology; D013148:Spironolactone / Q000494:pharmacology*
chemical_list: D000451:Mineralocorticoid Receptor Antagonists; D011965:Receptors, Glucocorticoid; D013148:Spironolactone; D015735:Mifepristone
keywords: HPA axis; glucocorticoid receptor; mineralocorticoid receptor; old age; sleep electroencephalogram