Purkinje CellsBone Marrow CellsCerebellumBone MarrowBone Marrow TransplantationCerebellar CortexMice, Neurologic MutantsDendritesBone and BonesPurkinje FibersHematopoietic Stem CellsMice, Inbred C57BLOlivary NucleusAtaxiaNerve FibersAction PotentialsSynapsesCerebellar NucleiCalbindinsCells, CulturedBone Marrow DiseasesColony-Forming Units AssayRotarod Performance TestHematopoiesisLong-Term Synaptic DepressionS100 Calcium Binding Protein GBone RemodelingPatch-Clamp TechniquesReceptors, Metabotropic GlutamateMice, TransgenicBone Marrow ExaminationMice, KnockoutCell DifferentiationCalcium Channels, P-TypeSpinocerebellar AtaxiasBone Marrow NeoplasmsCerebellar AtaxiaTime FactorsNerve Tissue ProteinsImmunohistochemistryAnimals, NewbornRadiation ChimeraExcitatory Postsynaptic PotentialsReceptors, GlutamateInositol 1,4,5-Trisphosphate ReceptorsElectric StimulationNeural InhibitionBone ResorptionCalciumCell CountSpinocerebellar DegenerationsSynaptic TransmissionCalcium Channels, Q-TypeBone Densityomega-Agatoxin IVACalcium Channels, N-TypeGranulocytesNeuronsMembrane PotentialsRats, Sprague-DawleyRats, WistarAxonsDoxapramElectrophysiologyBone Marrow PurgingCalcium ChannelsTransplantation, HomologousNeuronal PlasticityMice, Mutant StrainsSpleenWhole-Body IrradiationShaw Potassium ChannelsAntigens, CD34RNA, MessengerFlow CytometryBrainCalcium SignalingExcitatory Amino Acid AntagonistsTetrodotoxinNerve DegenerationEvoked PotentialsMice, Inbred StrainsDisease Models, AnimalOsteoclasts6-Cyano-7-nitroquinoxaline-2,3-dioneTransplantation, AutologousColony-Stimulating FactorsModels, NeurologicalMolecular Sequence DataIn Situ HybridizationBone NeoplasmsGlutamic AcidLeukemiagamma-Aminobutyric AcidMice, Inbred BALB CCell SeparationBone DevelopmentQuisqualic AcidCell DivisionStromal Cells