Studies on the Inhibitors of the Sodium-Potassium Activated Adenosinetriphos phatase. I. Effect of Phlorizin and Related Natural Products

Abstract

Investigations were performed on the correlation between the inhibitory power on Na⁺, K⁺-ATPase activity of phlorizin, asebotin, coreopsin, naringin-and hesperidin-chalcone and their chemical structure. Both chalcone and dihydrochalcone inhibited Na⁺, K⁺-ATPase activity, depending upon the number and position of phenolic hydroxyl group in their carbon skeleton. Free hydroxyl group at 4' position of phlorizin played an important role in the inhibitory power.