Kidney TubulesKidney Tubules, ProximalKidneyKidney Tubules, CollectingIntestine, SmallIntestinesKidney CortexNephronsKidney Tubules, DistalKidney MedullaGlutamineIntestine, LargeMalpighian TubulesEpitheliumSodium-Potassium-Exchanging ATPaseKidney DiseasesTissue DistributionGluconeogenesisMicroscopy, ElectronEpithelial CellsKidney TransplantationDogsImmunohistochemistryRNA, MessengerCell LineMolecular Sequence DataAcute Kidney InjuryIntestinal MucosaKidney Failure, ChronicKidney GlomerulusPolycystic Kidney DiseasesKidney NeoplasmsJejunumIntestinal AbsorptionKidney Function TestsMicrovilliIleumKidney CalculiRats, Sprague-DawleyPolycystic Kidney, Autosomal DominantKidney Concentrating AbilityLiverGlomerular Filtration RateDuodenumSodiumRabbitsBiological TransportAbsorption