Evidence for a functional role of alpha-1 adrenoceptors in the regulation of melatonin secretion in man

Psychoneuroendocrinology. 1989;14(1-2):131-5. doi: 10.1016/0306-4530(89)90062-0.

Abstract

Nocturnal plasma melatonin concentrations were reduced following administration of the alpha 1 adrenoceptor antagonist, prazosin (2 mg orally at 1900h), to 10 normal men. These data indicate that alpha 1 adrenoceptors are involved in the physiological control of melatonin secretion in man.

MeSH terms

  • Administration, Oral
  • Adult
  • Circadian Rhythm / drug effects
  • Humans
  • Male
  • Melatonin / blood*
  • Pineal Gland / drug effects
  • Pineal Gland / physiology*
  • Prazosin / pharmacology
  • Receptors, Adrenergic / drug effects
  • Receptors, Adrenergic / physiology*

Substances

  • Receptors, Adrenergic
  • Melatonin
  • Prazosin