Pyridoxine transport in brush border membrane vesicles of guinea pig jejunum.

@article{Yoshida1981PyridoxineTI,
  title={Pyridoxine transport in brush border membrane vesicles of guinea pig jejunum.},
  author={S Yoshida and K Hayashi and Takashi Kawasaki},
  journal={Journal of nutritional science and vitaminology},
  year={1981},
  volume={27 4},
  pages={
          311-7
        }
}
Transport of [3H]pyridoxine was studied with membrane vesicles prepared from brush border of guinea pig jejunum, in which pyridoxal kinase was not detected. The imposition of an Na+ gradient across the membrane did not affect pyridoxine transport. The equilibrium level of pyridoxine uptake decreased with increasing osmolarity of the medium, which indicates that pyridoxine is transported into the membrane vesicles. The initial rate of pyridoxine uptake increased linearly with increasing… 
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References

SHOWING 1-10 OF 18 REFERENCES
Thiamine transport in the brush border membrane vesicles of the guinea-pig jejunum.
Active alanine transport in isolated brush border membranes.
Na+-gradient-dependent transport of L-proline and analysis of its carrier system in brush-border membrane vesicles of the guinea-pig ileum.
Na+-dependent, electroneutral L-ascorbate transport across brush border membrane vesicles from guinea pig small intestine.
Uptake of pyridoxine hydrochloride by the rat jejunal mucosa in vitro.
TLDR
Data were most consistent with passive diffusion as the mechanism for in vitro jejunal mucosal mucosal uptake of pyridoxine-HCl in the rat.
Glucose transport in isolated brush border membrane from rat small intestine.
A modified procedure for the rapid preparation of efficiently transporting vesicles from small intestinal brush border membranes. Their use in investigating some properties of D-glucose and choline transport systems.
Demonstration of electrogenic Na+-dependent D-glucose transport in intestinal brush border membranes.
  • H. Murer, U. Hopfer
  • Biology
    Proceedings of the National Academy of Sciences of the United States of America
  • 1974
TLDR
These experiments provide evidence that the Na(+)-coupled D-glucose translocation across the brush border membrane is an electrogenic process, i.e., the positive charge associated with Na(+) is not compensated by the co-movement of an anion or the counter- Movement of a cation via the glucose "carrier".
In vivo absorption and phosphorylation of pyridoxine . HCl in rat jejunum.
Differential isolation of microvillous and basolateral plasma membranes from intestinal mucosa: mutually exclusive distribution of digestive enzymes and ouabain-sensitive ATPase.
...
...