Letter | Published:

Effect of Phosphates and the pH on Sugar Absorption

Nature volume 168, pages 912913 (24 November 1951) | Download Citation

Subjects

Abstract

THERE has been little discussion on the work of Magee and Reid1 showing that the addition of phosphates at pH 7 to the liquid to be absorbed activates intestinal absorption of glucose but not that of xylose2–5. Laszt3 attributes such an effect to the buffer action of the phosphates, as with other buffers at pH 7 he obtained analogous increases; between pH 4 and 8 he found an optimum of absorption at pH 7. Gellhorn and Moldavsky6, however, arrived at opposite conclusions; in their opinion absorption would be much greater if instead of maintaining the pH at 7, it is somewhat displaced towards the acid or alkaline side. Difficulties in the interpretation of other results have induced us to return to these problems.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1.

    , and , J. Physiol., 73, 181 (1931).

  2. 2.

    , and , Biochem. Z., 259, 398 (1933).

  3. 3.

    , Biochem. Z., 276, 40 (1935).

  4. 4.

    , and , J. Biol. Chem., 109, xiv (1935).

  5. 5.

    , Acta brev. Néerl. Physiol., 6, 36 (1936).

  6. 6.

    , and , Amer. J. Physiol., 109, 638 (1934).

  7. 7.

    , and , R. Esp. Fisiol., 3, 207 (1947).

  8. 8.

    , , and , R. Esp. Fisiol., 6, 195 (1950).

Download references

Author information

Affiliations

  1. Laboratory of Animal Physiology, University of Barcelona. June 21.

    • F. PONZ
    •  & J. LARRALDE

Authors

  1. Search for F. PONZ in:

  2. Search for J. LARRALDE in:

About this article

Publication history

Published

DOI

https://doi.org/10.1038/168912a0

Further reading

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.