TestisSeminiferous EpitheliumSertoli CellsLeydig CellsSeminiferous TubulesSpermatogenesisBlood-Testis BarrierSpermatidsRats, Sprague-DawleySpermatocytesMesylatesTestosteroneSpermatozoaHydrazinesBlotting, NorthernRNA, MessengerRats, WistarIn Situ HybridizationImmunohistochemistryReverse Transcriptase Polymerase Chain ReactionCryptorchidismRete TestisSpermatogoniaEpididymisDibutyl PhthalateRats, Inbred StrainsSpermatic Cord TorsionAnimals, NewbornSexual MaturationAndrogen-Binding ProteinOrgan SizeChorionic GonadotropinMolecular Sequence DataOrchitisGerm CellsHypophysectomyFollicle Stimulating HormoneAgingBase SequenceDiethylhexyl Phthalate3-Hydroxysteroid DehydrogenasesFlutamideAmino Acid SequenceTissue DistributionGene ExpressionLuteinizing HormoneOrgan SpecificitySperm CountDNA, ComplementaryTesticular NeoplasmsAntispermatogenic AgentsIndazolesReceptors, LHTesticular DiseasesCells, CulturedExcitatory Amino Acid Transporter 5Gene Expression Regulation, DevelopmentalPropylthiouracilLiverRetinol-Binding Proteins, CellularBlotting, WesternCloning, MolecularRats, Inbred F344ClusterinOvaryHistocytochemistryTime FactorsFetusCell CountOrnidazoleInhibinsLeydig Cell TumorPlasticizersGene Expression RegulationIsoenzymesGenitalia, MaleBody WeightPhosphofructokinase-2ImmunoblottingProteinsVitamin A DeficiencyRetinol-Binding ProteinsSperm TailSequence Homology, Amino AcidInfertility, MaleSteroid 17-alpha-HydroxylaseBrainAcrosomeHibiscusDNAElectrophoresis, Polyacrylamide GelMeiosisMicroscopy, ElectronGonadotropinsScrotumPregnancyCell DifferentiationDose-Response Relationship, DrugCarrier ProteinsContraceptive Agents, Male