Leydig CellsTestosteroneLeydig Cell TumorTestisLuteinizing HormoneChorionic Gonadotropin3-Hydroxysteroid DehydrogenasesReceptors, LHSertoli CellsAndrogensMesylatesHypogonadismSeminiferous TubulesSteroidsCholesterol Side-Chain Cleavage EnzymeSpermatogenesisTestosterone PropionateSteroid 17-alpha-HydroxylaseOrchiectomySexual MaturationFollicle Stimulating HormoneCryptorchidismDihydrotestosteroneEstradiolAndrostenedioneSex Hormone-Binding Globulin17-Hydroxysteroid DehydrogenasesGonadal Steroid HormonesTesticular NeoplasmsOrgan SizePregnenoloneDibutyl PhthalateAntispermatogenic AgentsCastrationAromataseGenitalia, MaleAndrostane-3,17-diolEpitestosteroneGonadotropinsProgesteroneFlutamideGonadotropin-Releasing HormoneSperm CountRats, Sprague-Dawley3-Oxo-5-alpha-Steroid 4-DehydrogenaseReceptors, AndrogenRadioimmunoassayCell CountRats, Inbred StrainsSeminiferous EpitheliumInhibinsEpididymisDehydroepiandrosteroneSeminal VesiclesDAX-1 Orphan Nuclear ReceptorDiethylstilbestrolTesticular Hormones17-alpha-HydroxyprogesteroneDiethylhexyl PhthalateHormonesRNA, MessengerDrug ImplantsSex DifferentiationTesticular DiseasesNandroloneCells, CulturedAgingRats, WistarPituitary GlandCyclic AMPGonadotropins, PituitaryImmunohistochemistryHydroxytestosterones8-Bromo Cyclic Adenosine MonophosphateFetusSpermatozoaTestosterone CongenersSexual DevelopmentAminoglutethimideAndrogen AntagonistsSertoli-Leydig Cell TumorSteroidogenic Factor 1AndrosteroneDose-Response Relationship, DrugEstrogensHypophysectomyProstateSertoli Cell TumorInfertility, MaleHydroxyprogesteronesContraceptive Agents, MaleCyproterone AcetateHormone Replacement TherapyPhosphoproteinsDehydroepiandrosterone SulfateEstroneSpermatidsSeasonsGonadsFeminization