Receptors, ProgesteroneBreast NeoplasmsReceptors, EstrogenProtein IsoformsEstradiolCorpus LuteumProgesterone CongenersMifepristoneProgestinsEstrusLuteinizing HormonePregnancyUterusOvariectomyLuteal PhasePregnancy, AnimalIsoenzymesOvaryOvulationEndometriumHormone AntagonistsEstrogensDinoprostMenstrual CycleRNA, MessengerHydroxyprogesteronesAlternative SplicingMolecular Sequence DataPseudopregnancyLuteal CellsChorionic GonadotropinFollicle Stimulating HormoneGonanesGranulosa Cells20-alpha-DihydroprogesteroneOvarian FollicleGonadal Steroid HormonesSteroidsOviductsNorpregnadienesSheepEstrous CycleCattleAmino Acid SequenceFollicular PhaseMyometriumLuteolysisCastration20-Hydroxysteroid DehydrogenasesPregnenoloneProlactinImmunohistochemistryCells, CulturedAdministration, Intravaginal3-Hydroxysteroid DehydrogenasesOxytocinRadioimmunoassayBase SequenceTestosteroneRNA IsoformsGonadotropin-Releasing HormoneAndrostenedione5-alpha-DihydroprogesteroneReverse Transcriptase Polymerase Chain ReactionIsomerismDiestrusTime FactorsPregnancy MaintenanceEmbryo ImplantationPregnanoloneProgesterone-Binding GlobulinBlotting, WesternMedroxyprogesteroneProgesterone ReductaseMenstruationAnestrusMedroxyprogesterone AcetateProstaglandins FEstroneLabor, ObstetricProestrusGene Expression RegulationEstrus SynchronizationDose-Response Relationship, DrugPregnanediolPregnanedionesCell LineHormonesPostpartum PeriodCorpus Luteum MaintenanceCholesterol Side-Chain Cleavage EnzymeGene ExpressionGonadotropins, EquineFollicular Fluid17-alpha-HydroxyprogesteroneKineticsEstrogen Receptor alphaSwineDeciduaReceptors, Estradiol