Glycosidation of Chlormadinol Acetate Alters its Actions on Na+/K+-Transporting ATPase and Cardiac Contractility: A Contribution to the Endogenous Digitalis Problem
1987
AbstractCompared to the progesterone derivative chlormadinol acetate 1, the arabinofuranoside 2, rhamnoside 3 and glucoside 4 of 1 are less potent in the Na/K-ATPase assay, but evoke, contrary to 1, positive inotropy in vivo. In anaesthetized cats the circulation effects of 2 and 3 appear to be more favourable than those of the digitalis glycoside digitoxin. Hence, the progestin 1 is transformed through glycosidation into an interesting cardioactive steroid.
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