title: [Menstrual cycle, opioids and hypothalamic amenorrhea: from physiology to pathology].
abstract: The central part of menstrual cyclicity is the arcuate nucleus within the mediobasal hypothalamus, which is shown to be the origin of GnRH. This neuronal oscillator is influenced by many endogenous substances and its periodically activity is modulated by them. The endogenous opioids are such substances. They are widely distributed within the organism and are endogenous ligands of opiate receptors. The endogenous opioids participate in many somatic functions such as regulation of ovarian cyclicity. Furthermore they are causal involved in hypothalamic amenorrhea.
authors.affiliation: Klinik und Poliklinik für Gynäkologie und Geburtshilfe, Bereichs Medizin der Ernst-Moritz-Arndt-Universität Greifswald.
authors.forename: B
authors.initials: B
authors.lastname: Krause
authors.forename: S
authors.initials: S
authors.lastname: Möller
mesh_terms: D000568:Amenorrhea / Q000503:physiopathology*; D004723:Endorphins / Q000502:physiology*; D005260:Female; D006801:Humans; D007031:Hypothalamus / Q000503:physiopathology*; D008597:Menstrual Cycle / Q000502:physiology*; D011957:Receptors, Opioid / Q000502:physiology*
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid
vernacular_title: Der menstruelle Zyklus, die Opioide und die hypothalamische Amenorrhoe: von der Physiologie zur Pathologie.