The Journal of General Physiology
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The Journal of General Physiology, Vol 36, 607-615, Copyright © 1953 by The Rockefeller University Press

ARTICLE

RELATION OF METABOLISM OF FROG SKIN TO CELLULAR INTEGRITY AND ELECTROLYTE TRANSFER

Norman G. Levinsky 1 and Wilbur H. Sawyer 1

1 From the Biological Laboratories, Harvard University, Cambridge

1. The transport of sodium by frog skin and the maintenance of normal potassium levels within the cells of the skin are both dependent on metabolism and on a supply of phosphate bond energy.

2. Except for the common requirement of phosphate bond energy, the transfer mechanism for sodium and the mechanism for maintaining intracellular potassium appear to be independent.

3. The xanthines specifically inhibit the sodium transfer mechanism; at higher concentrations, they depress metabolism and cause loss of potassium from the skin.

Submitted on November 11, 1952


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