EstradiolCorpus LuteumProgesterone CongenersMifepristoneProgestinsEstrusLuteinizing HormonePregnancyUterusOvariectomyLuteal PhaseBiosynthetic PathwaysPregnancy, AnimalOvaryOvulationMolecular Sequence DataEndometriumReceptors, EstrogenHormone AntagonistsEstrogensDinoprostHydroxyprogesteronesMenstrual CycleLuteal CellsChorionic GonadotropinPseudopregnancySteroidsFollicle Stimulating HormoneGranulosa CellsStreptomycesGonanes20-alpha-DihydroprogesteroneGonadal Steroid HormonesOvarian FollicleRNA, MessengerAmino Acid SequenceOviductsPregnenoloneNorpregnadienesSheepEstrous Cycle3-Hydroxysteroid DehydrogenasesCattleKineticsLuteolysisCastrationFollicular PhaseMutationRadioimmunoassayBreast Neoplasms20-Hydroxysteroid DehydrogenasesAdministration, IntravaginalBase SequenceProlactinOxytocinMultigene FamilyBacterial ProteinsCells, CulturedMyometriumCloning, MolecularTestosteroneAndrostenedioneEscherichia coliProgesterone ReductaseTime FactorsProtein BiosynthesisGonadotropin-Releasing HormoneGenes, Bacterial5-alpha-DihydroprogesteronePregnanoloneProstaglandins FDiestrusPregnancy MaintenanceProgesterone-Binding GlobulinCholesterol Side-Chain Cleavage EnzymeMedroxyprogesteroneImmunohistochemistryEmbryo ImplantationEstroneTerpenesMenstruationAnestrusOxidoreductasesMedroxyprogesterone AcetateGenetic Complementation TestProestrusGene Expression Regulation, PlantDose-Response Relationship, DrugMolecular StructureSequence Homology, Amino AcidAcyltransferasesEstrus SynchronizationPolyketide SynthasesPeptide SynthasesChromatography, High Pressure LiquidLabor, ObstetricPregnanediolHormonesPregnanediones17-alpha-Hydroxyprogesterone