EstradiolCorpus LuteumProgesterone CongenersMifepristoneErectile DysfunctionVentricular Dysfunction, LeftProgestinsEstrusLuteinizing HormonePregnancyUterusOvariectomyLuteal PhasePregnancy, AnimalOvulationEndometriumReceptors, EstrogenOvaryHormone AntagonistsEstrogensDinoprostMenstrual CycleHydroxyprogesteronesLuteal CellsPseudopregnancyFollicle Stimulating HormoneChorionic GonadotropinGranulosa CellsGonanes20-alpha-DihydroprogesteroneGonadal Steroid HormonesOvarian FollicleSteroidsTime FactorsNorpregnadienesOviductsSheepEstrous CycleFollicular PhaseCastrationLuteolysisBreast NeoplasmsProlactinAdministration, IntravaginalPregnenolone20-Hydroxysteroid DehydrogenasesCattleOxytocinVentricular DysfunctionRadioimmunoassayMyometriumTestosterone3-Hydroxysteroid DehydrogenasesSexual Dysfunction, PhysiologicalCells, CulturedRNA, MessengerImmunohistochemistryAndrostenedioneGonadotropin-Releasing Hormone5-alpha-DihydroprogesteroneSexual Dysfunctions, PsychologicalEndothelium, VascularDose-Response Relationship, DrugDiestrusPregnancy MaintenancePregnanoloneProgesterone-Binding GlobulinEmbryo ImplantationMedroxyprogesteroneProgesterone ReductaseMenstruationDisease Models, AnimalAnestrusMedroxyprogesterone AcetateProstaglandins FEstroneRats, Sprague-DawleyProestrusEstrus SynchronizationHormonesLabor, ObstetricPostpartum PeriodPregnanediolVentricular Dysfunction, RightPregnanedionesSwineCorpus Luteum MaintenanceCholesterol Side-Chain Cleavage EnzymeGonadotropins, Equine17-alpha-HydroxyprogesteroneFollicular FluidReceptors, EstradiolDrug ImplantsInsemination, ArtificialDydrogesteroneDeciduaReceptors, OxytocinAnalysis of VariancePregnancy TestsMice, Inbred C57BL