Application of the Na+ recirculation theory to ion coupled water transport in low- and high resistance osmoregulatory epithelia.

@article{Larsen2007ApplicationOT,
  title={Application of the Na+ recirculation theory to ion coupled water transport in low- and high resistance osmoregulatory epithelia.},
  author={Erik Hviid Larsen and Nadja M\objerg and Robert R. Nielsen},
  journal={Comparative biochemistry and physiology. Part A, Molecular & integrative physiology},
  year={2007},
  volume={148 1},
  pages={101-16}
}
The theory of Na+ recirculation for isosmotic fluid absorption follows logically from Hertz's convection-diffusion equation applied to the exit of water and solutes from the lateral intercellular space. Experimental evidence is discussed indicating Na+ recirculation based upon the following approaches: (i) An isotope tracer method in small intestine. Simultaneous measurement of water flow and ion transport in toad skin epithelium demonstrating, (ii) occasional hyposmotic absorbates, and (iii… CONTINUE READING