Kidney TubulesKidney Tubules, ProximalKidneyKidney Tubules, CollectingEpitheliumKidney CortexNephronsKidney Tubules, DistalKidney MedullaGlutamineMalpighian TubulesEpithelial CellsSodium-Potassium-Exchanging ATPaseKidney DiseasesMicroscopy, ElectronGluconeogenesisTissue DistributionImmunohistochemistryKidney TransplantationDogsEpithelium, CornealRNA, MessengerCell LineSeminiferous EpitheliumAcute Kidney InjuryMolecular Sequence DataKidney GlomerulusKidney Failure, ChronicPolycystic Kidney DiseasesKidney NeoplasmsRetinal Pigment EpitheliumKidney Function TestsOlfactory MucosaKidney CalculiRabbitsTestisPolycystic Kidney, Autosomal DominantRats, Sprague-DawleyCells, CulturedIn Situ HybridizationGlomerular Filtration RateKidney Concentrating AbilityIntestinal MucosaRespiratory MucosaSodiumTime FactorsMicrovilli