Ion transport in rat proximal colon in vivo.

@article{Lbcke1986IonTI,
  title={Ion transport in rat proximal colon in vivo.},
  author={R. L{\"u}bcke and K. Haag and Evelyn J Berger and Heinrich Knauf and Wolfgang Gerok},
  journal={The American journal of physiology},
  year={1986},
  volume={251 1 Pt 1},
  pages={
          G132-9
        }
}
Active Na+ absorption by the rat proximal colon in vivo is for the most part electrically silent. The rheogenic Na+ flux makes up only 8%. To elucidate the underlying transport pathways, the following experimental approaches were used: ion substitution experiments such as choline for Na+, cyclamate for Cl-, variation of luminal pH; administration of known inhibitors; and determination of changes in luminal CO2 tension and pH. The transcolonic ion fluxes as well as the electrical parameters… CONTINUE READING

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