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[Melatoninergic receptor agonists and antagonists: pharmacological aspects and therapeutic perspective].

Abstract
Melatonin, or N-acetyl 5-methoxytryptamine, a neurohormone produced in the pineal gland during periods of darkness, plays a key role in the regulation of circadian and seasonal biological rhythms. In mammals, specific MT1 and MT2 receptors are located in the central nervous system, mainly in suprachiasmatic nuclei, and also in a number of peripheral sites. Besides its chronobiotic action on light-dependant functions, such as sleep/waking alternance or seasonal depression, melatonin exerts modulatory effects on immune, endocrine and metabolic functions. However, its short half-life and extensive metabolism lead to a poor bioavailability. This prompted to search for metabolically stable analogs displaying new and innovative properties. The S 20098 compound, a melatoninergic agonist, has proven potent antidepressive and anxiolytic actions. The S 20928 compound, a melatonin antagonist, was shown to enhance basal metabolism and reduce weight gain. Thus, both of these melatonin derivatives open perspectives for the development of innovative therapeutic agents in the fields of depression and obesity.
AuthorsB Guardiola-Lemaitre
JournalAnnales pharmaceutiques francaises (Ann Pharm Fr) Vol. 63 Issue 6 Pg. 385-400 (Nov 2005) ISSN: 0003-4509 [Print] France
Vernacular TitleAgonistes et antagonistes des récepteurs mélatoninergiques: effets pharmacologiques et perspectives thérapeutiques.
PMID16292232 (Publication Type: English Abstract, Journal Article, Review)
Chemical References
  • Receptors, Melatonin
  • Melatonin
Topics
  • Animals
  • Humans
  • Melatonin (physiology)
  • Receptors, Melatonin (agonists, antagonists & inhibitors, chemistry, genetics)
  • Structure-Activity Relationship

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