EpitheliumCyclin D1Cyclin ABreastEpithelial CellsRespiratory MucosaCyclin EImmunohistochemistryIntestinal MucosaCyclin BCyclin B1Cyclin D2Cyclin D3Cyclin A1RNA, MessengerIn Situ HybridizationMice, Inbred C57BLCyclin A2Interleukin-8Cyclin DGene ExpressionGene Expression Regulation, DevelopmentalCarcinoma, Ductal, BreastMice, TransgenicBreast DiseasesCyclin G1CyclinsCyclin GCyclin CCyclin-Dependent KinasesCyclin B2Breast FeedingCyclin TCyclin-Dependent Kinase 2Cell CycleCyclin G2Cyclin HCell Line, TumorCyclin-Dependent Kinase 4Receptors, EstrogenCDC2-CDC28 KinasesBreast Neoplasms, MaleG1 PhaseCDC2 Protein KinaseMammographyGene Expression Regulation, NeoplasticCell Cycle ProteinsFibrocystic Breast DiseaseReceptor, erbB-2Cyclin-Dependent Kinase Inhibitor p27S PhaseBreast ImplantsReceptors, ProgesteroneRetinoblastoma ProteinCell ProliferationTamoxifenBreast Self-ExaminationTumor Cells, CulturedTumor Markers, BiologicalCyclin IPrognosisCell DivisionPhosphorylationProtein-Serine-Threonine KinasesOncogene ProteinsCarcinoma, Intraductal, NoninfiltratingMitosisNeoplasm InvasivenessMastectomyGenes, bcl-1Carcinoma, LobularNeoplasm ProteinsCyclin-Dependent Kinase Inhibitor p21Neoplasm MetastasisTumor Suppressor ProteinsUltrasonography, MammaryCyclin-Dependent Kinase 6Antineoplastic AgentsNeoplasm StagingAntineoplastic Agents, HormonalSignal TransductionGenes, BRCA1Lymphatic MetastasisBlotting, WesternApoptosisCase-Control StudiesRisk FactorsCarcinomaTime FactorsEstrogen Receptor alphaG2 PhaseReverse Transcriptase Polymerase Chain ReactionMammary Neoplasms, ExperimentalPostmenopauseMammary Glands, HumanMCF-7 CellsEstrogensDown-RegulationMolecular Sequence DataTransfection