OvariectomyOvaryCastrationEstradiolEstrogensPolycystic Ovary SyndromeProgesteroneUterusEstrusLuteinizing HormoneDiestrusOvarian FollicleFollicle Stimulating HormoneOvulationCricetinaeSexual MaturationRats, Sprague-DawleyOrgan SizeEstrous CycleOsteoporosisCHO CellsTestosteronePregnancy, AnimalPregnancyGonadal Steroid HormonesProestrusEstrogen Replacement TherapyFemurBody WeightBone DensityMammary Neoplasms, ExperimentalPituitary GlandBone ResorptionProlactinSex CharacteristicsAnestrusTibiaBone and BonesEstrogen Receptor alphaCricetulusDrug ImplantsBone Diseases, MetabolicCorpus LuteumPerphenazineRats, WistarSheepGonadotropin-Releasing HormoneOrchiectomyMetestrusEstrogen Receptor betaTime FactorsRats, Inbred StrainsMethylnitrosoureaRNA, MessengerPseudopregnancyGonadotropins, EquineReceptors, EstrogenInhibinsEstrogen AntagonistsGonadotropinsGonadotropins, PituitaryNorpregnenesGranulosa CellsTooth SocketX-Ray MicrotomographyRaloxifene9,10-Dimethyl-1,2-benzanthraceneBone RemodelingAgingMetrial GlandMice, Inbred C57BLDisease Models, AnimalAlendronateMammary Glands, AnimalGastric DilatationAndrostenedioneEmbryo Implantation, DelayedPhytoestrogensFollicular FluidVaginaCattleMedroxyprogesteroneAdrenal GlandsDiethylstilbestrolImmunohistochemistryMaprotilineRandom AllocationPituitary Hormone-Releasing HormonesFeedbackMesocricetusChorionic GonadotropinOvum TransportOsteoclastsRadioimmunoassayHypophysectomyPostpartum PeriodMenopauseHarderian GlandBone Density Conservation AgentsSecretory Rate