SpermatogenesisTestisBreastSpermatidsSpermatocytesSeminiferous TubulesSertoli CellsSpermatogoniaSpermatozoaInfertility, MaleCarcinoma, Ductal, BreastSeminiferous EpitheliumBreast DiseasesSperm CountFertilityOligospermiaAzoospermiaBlood-Testis BarrierGerm CellsBreast FeedingMeiosisTestosteroneNerve BlockContraceptive Agents, MaleLeydig CellsEpididymisHeart BlockCryptorchidismBreast Neoplasms, MaleReceptors, EstrogenOrgan SizeImmunohistochemistryMammographySpermatogenesis-Blocking AgentsPachytene StageRNA, MessengerSperm MotilityFibrocystic Breast DiseaseCell Line, TumorMolecular Sequence DataFollicle Stimulating HormoneReceptor, erbB-2Breast ImplantsSexual MaturationBreast Self-ExaminationReceptors, ProgesteroneReverse Transcriptase Polymerase Chain ReactionAntispermatogenic AgentsTamoxifenTesticular DiseasesChromosomes, Human, YBase SequenceProtaminesSperm TailGene Expression Regulation, DevelopmentalSperm MaturationY ChromosomeGene Expression Regulation, NeoplasticMutationTime FactorsSertoli Cell-Only SyndromeApoptosisSperm HeadAmino Acid SequenceVaricoceleMeiotic Prophase IGene Expression ProfilingCarcinoma, Intraductal, NoninfiltratingMastectomyAcrosomeGene ExpressionPrognosisTumor Markers, BiologicalCarcinoma, LobularNeoplasm InvasivenessGonadotropinsMice, KnockoutOogenesisSeminal VesiclesBlotting, WesternUltrasonography, MammaryCase-Control StudiesSignal TransductionGametogenesisLuteinizing HormoneIn Situ HybridizationNuclear ProteinsNeoplasm MetastasisCell ProliferationInhibinsEstradiolEstrogensRisk FactorsTranscription FactorsMice, Inbred C57BLGenes, BRCA1Antineoplastic Agents, HormonalSeminal Plasma ProteinsSemenAndrogens