OsteoclastsCathepsinsOsteoporosisCathepsin BCathepsin LCathepsin KCathepsin DOsteoporosis, PostmenopausalCathepsin GCathepsin HBone ResorptionCathepsin EBone DensityRANK LigandCathepsin CBone Density Conservation AgentsBone and BonesCathepsin FReceptor Activator of Nuclear Factor-kappa BDiphosphonatesFractures, BoneOsteoporotic FracturesBone RemodelingAlendronateCathepsin ZBone Diseases, MetabolicOsteoprotegerinOsteoblastsAcid PhosphataseAbsorptiometry, PhotonOsteopetrosisCysteine EndopeptidasesFractures, SpontaneousCathepsin WEtidronic AcidOsteogenesisCell DifferentiationTeriparatideMacrophage Colony-Stimulating FactorSpinal FracturesLysosomesCalcitoninFemur NeckCells, CulturedCathepsin AFemurLumbar VertebraePepstatinsCystatinsOsteolysisEndopeptidasesBone Marrow CellsParathyroid HormoneCysteine Proteinase InhibitorsHip FracturesBone DevelopmentBone DiseasesRaloxifeneNFATC Transcription FactorsOvariectomyOsteocalcinOsteocytesGlucocorticoidsMice, Inbred C57BLAlkaline PhosphataseMice, KnockoutVitamin DSpineCalcaneusCalcium, DietaryTibiaSelective Estrogen Receptor ModulatorsBone MatrixProtease InhibitorsCalcification, PhysiologicDiazomethaneCollagen Type IDipeptidesMembrane GlycoproteinsSerine EndopeptidasesVacuolar Proton-Translocating ATPasesIsoenzymesCalciumCarrier ProteinsMacrophagesX-Ray MicrotomographyBone NeoplasmsSignal TransductionMolecular Sequence DataSkullRisk FactorsAmino Acid SequenceHipOsteitis DeformansCell LineReceptors, Tumor Necrosis FactorIliumRNA, MessengerEstrogen Replacement TherapyPapain