Seminiferous TubulesTestisSpermatogenesisSertoli CellsSeminiferous EpitheliumSpermatogoniaRete TestisSpermatidsSpermatozoaLeydig CellsKidney Tubules, ProximalCryptorchidismEpididymisBlood-Testis BarrierSpermatocytesSperm CountOrchitisKidney TubulesTestosteroneMalpighian TubulesOrgan SizeInfertility, MaleTesticular DiseasesSexual MaturationGerm CellsKidney Tubules, DistalGenitalia, MaleAntispermatogenic AgentsFollicle Stimulating HormoneFertilitySeminal VesiclesAndrogen-Binding ProteinImmunohistochemistryTransilluminationRats, Sprague-DawleyOrnipressinVasectomyKidney Tubules, CollectingDibutyl PhthalateTesticular NeoplasmsHistocytochemistrySpermatic Cord TorsionSperm MotilityLuteinizing HormoneInhibinsRNA, MessengerMicroscopy, ElectronScrotumRats, WistarRats, Inbred StrainsBody FluidsTissue Distribution3-Hydroxysteroid DehydrogenasesSpermatic CordToxicity TestsIn Situ HybridizationMeiosisOrchiectomyMolecular Sequence DataSertoli Cell TumorCell CountReverse Transcriptase Polymerase Chain ReactionOligospermiaReproductionAnimals, NewbornVas DeferensIn Situ Nick-End LabelingMice, Inbred C57BLTesticular HormonesTestosterone PropionateKlinefelter SyndromeBlotting, NorthernAtrophyMesylatesTime FactorsBody WeightGene ExpressionCells, CulturedKidneyHypophysectomyOvaryVaricoceleHexanonesBase SequenceMice, TransgenicSemenOrgan SpecificityBlotting, WesternDisorders of Sex DevelopmentSperm RetrievalSperm HeadDiethylhexyl PhthalateGonadsAmino Acid SequenceFluorescent Antibody TechniqueAcrosomeAzoospermiaCell DifferentiationVasotocinApoptosis