HypogonadismLuteinizing HormoneGonadotropin-Releasing HormoneFollicle Stimulating HormoneReceptors, LHTestosteroneLuteinizing Hormone, beta SubunitKallmann SyndromeEstradiolChorionic GonadotropinPituitary GlandProgesteroneHormonesOvaryPituitary Hormone-Releasing HormonesGonadotropinsReceptors, LHRHOvulationProlactinPituitary Gland, AnteriorPuberty, DelayedEstrusTestisGonadotropins, PituitaryLeydig CellsSexual MaturationOvariectomyGonadal Steroid HormonesCastrationHormone Replacement TherapyCorpus LuteumLeuprolideThyroid HormonesRadioimmunoassayProestrusHypothalamusFollicular PhaseOrchiectomyOvarian FollicleAmenorrheaSheepPituitary HormonesKisspeptinsKlinefelter SyndromeHypothalamo-Hypophyseal SystemPituitary Hormones, AnteriorGranulosa CellsGynecomastiaGlycoprotein Hormones, alpha SubunitPregnancyLuteal PhaseAndrogensDiestrusInhibinsEndocrine System DiseasesTriptorelin PamoateReceptors, FSHPuberty, PrecociousParathyroid HormoneAnestrusAndropausePeriodicityAdrenocorticotropic HormoneCattleDrug ImplantsSex Hormone-Binding GlobulinRats, Inbred StrainsHypopituitarismPubertySteroidsHypothalamus, MiddleEunuchismDAX-1 Orphan Nuclear ReceptorFollicle Stimulating Hormone, beta SubunitHuman Growth HormoneReproductionEstrogensDihydrotestosteroneHypophysectomyOvulation InductionAndrostenedioneFeedbackGonadotropins, EquineThyrotropinMenotropinsPreoptic AreaHypothalamic DiseasesMenstrual CycleGonadal HormonesHormone AntagonistsLibidoTime FactorsErectile DysfunctionOrgan SizeEstrous CycleFertilityMedian EminenceSperm CountOvulation DetectionMenstruation