TestosteroneEstrogensDietary SupplementsReceptors, EstrogenEstrogen Receptor alphaEstrogen Receptor betaEstradiolEstrogens, Conjugated (USP)Testosterone PropionateAndrogensHypogonadismDihydrotestosteroneOrchiectomyTestisLuteinizing HormoneSex Hormone-Binding GlobulinGonadal Steroid HormonesOvariectomyCastrationEstrogens, CatecholAromataseAndrostenedioneEstrogens, Non-SteroidalEpitestosteroneFollicle Stimulating HormoneVitaminsSelective Estrogen Receptor ModulatorsBreast NeoplasmsProgesteroneEstroneDiethylstilbestrolReceptors, AndrogenHormone Replacement TherapySex CharacteristicsOrgan SizeFlutamideDrug ImplantsDehydroepiandrosteroneTamoxifenSexual MaturationEstradiol CongenersFood, FortifiedMineralsGonadotropin-Releasing HormonePregnancyTestosterone CongenersPlant PreparationsPostmenopauseUterusReceptors, Progesterone3-Oxo-5-alpha-Steroid 4-DehydrogenaseDehydroepiandrosterone SulfateHormonesRadioimmunoassay17-Hydroxysteroid DehydrogenasesDose-Response Relationship, DrugSexual Behavior, AnimalSteroidsBody WeightDietSpermatogenesisProstateRats, Sprague-DawleyAndrostane-3,17-diolAromatase InhibitorsAndrogen AntagonistsRNA, MessengerAndrostanesGenitalia, MaleChorionic GonadotropinAgingAnimal FeedTime FactorsRandom AllocationProlactinEthinyl EstradiolVirilismSperm CountPituitary GlandHirsutismOvaryLibidoAdministration, CutaneousSeminal VesiclesGonadotropins, PituitaryDouble-Blind MethodCyproteroneSeasonsDoping in SportsAndrosteroneHydroxytestosteronesReproductionProgestinsGonadotropinsMenopauseSheepCholestenone 5 alpha-ReductaseNeoplasms, Hormone-DependentCyproterone AcetateIsoflavones