2007
Flow-dependent transport in a mathematical model of rat proximal tubule
Weinstein A, Weinbaum S, Duan Y, Du Z, Yan Q, Wang T. Flow-dependent transport in a mathematical model of rat proximal tubule. American Journal Of Physiology. Renal Physiology 2007, 292: f1164-f1181. PMID: 17213461, DOI: 10.1152/ajprenal.00392.2006.Peer-Reviewed Original ResearchConceptsNa(+) reabsorptionRat proximal tubulesProximal tubulesModel tubuleDiuretic effectMouse proximal tubuleLuminal perfusion rateLow flowsSolute transportNaCl reabsorptionPeritubular transportTranscellular NaCl reabsorptionCarbonic anhydrase inhibitionGlomerulotubular balanceTubulesReabsorptionTransporter densityLuminal flowModel calculationsRatsFlow-dependent transportTransporter insertionMathematical modelPerfusion rateRate of hydration
2005
Axial flow modulates proximal tubule NHE3 and H-ATPase activities by changing microvillus bending moments
Du Z, Yan Q, Duan Y, Weinbaum S, Weinstein A, Wang T. Axial flow modulates proximal tubule NHE3 and H-ATPase activities by changing microvillus bending moments. American Journal Of Physiology. Renal Physiology 2005, 290: f289-f296. PMID: 16144961, DOI: 10.1152/ajprenal.00255.2005.Peer-Reviewed Original ResearchConceptsProximal tubules in vitroHCO3- absorptionTubules in vitroBrush-border microvilliHCO3- permeabilityH(+)-ATPase inhibitor bafilomycinInhibition of NHE3Proximal tubule NHE3Transepithelial potential differenceH-ATPase activityLuminal cell membraneH(+)-ATPaseTransepithelial PDNa+ absorptionParacellular permeabilityH(+)-ATPase activityInhibitor EIPAMembrane transport activityProximal tubulesHCO3- reabsorptionNHE3HCO3- transportH-ATPaseBicarbonate transportPermeability changes