Biological TransportRadiopharmaceuticalsGlucoseBiological Transport, ActiveKineticsDeoxyglucoseFluorodeoxyglucose F18Iodine RadioisotopesPositron-Emission TomographyTissue DistributionFluorine RadioisotopesMembrane Transport ProteinsCarbon RadioisotopesSodiumCarrier ProteinsLiverHydrogen-Ion ConcentrationIronCells, CulturedEndocytosisTime FactorsCell MembraneNeurotransmitter Uptake InhibitorsTritiumSymportersIodobenzenesGallium RadioisotopesTomography, Emission-ComputedOrganotechnetium CompoundsCell LineTechnetiumInsulinOrganic Anion TransportersMonosaccharide Transport ProteinsTransferrinPotassiumDose-Response Relationship, DrugMuscle, SkeletalLactic AcidRats, Sprague-DawleyRats, Inbred StrainsIndium RadioisotopesMetabolic Clearance RateAntigens, CD36Glucose Transporter Type 1RadioisotopesIntestinal AbsorptionTechnetium Tc 99m MedronateAutoradiographyGlucose Transporter Type 4DinitrophenolsAmino AcidsCation Transport ProteinsSynaptosomesReceptors, ScavengerMicrovilliTomography, Emission-Computed, Single-PhotonMyocardium3-IodobenzylguanidineTemperatureAminoisobutyric AcidsModels, BiologicalAdenosine TriphosphateCaco-2 CellsRats, WistarGalliumScavenger Receptors, Class BLipoproteins, LDLIron RadioisotopesCopper RadioisotopesMolecular Sequence DataReceptors, LipoproteinMultimodal ImagingRabbitsPerfusionOuabainFerric CompoundsIsotope LabelingBrainCell Membrane PermeabilityDogsMembrane ProteinsOrganic Anion Transporters, Sodium-IndependentCholesterol EstersMacrophagesMutationCalcium RadioisotopesPhosphatesDopamine Uptake InhibitorsMethylglucosidesBacterial ProteinsPlant RootsPhagocytosisQuaternary Ammonium CompoundsDeoxy SugarsGlutamic AcidOxidation-ReductionKidneySulfobromophthaleinLactates