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glycoside
(redirected from cardiac glycoside)

   Also found in: Dictionary/thesaurus, Medical, Encyclopedia, Wikipedia 0.01 sec.

glycoside

In biology, compound containing a sugar and a non-sugar unit. Many glycosides occur naturally, for example, digitalis is a preparation of dried and powdered foxglove leaves that contains a mixture of cardiac glycosides. One of its constituents, digoxin, is used in the treatment of congestive heart failure and cardiac arrhythmias.



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? Mentioned in ? References in periodicals archive
 
Because monarch caterpillars in the northeastern United States feed mostly on mildly toxic varieties of milkweed, as butterflies they possess few cardiac glycosides -- and therefore are only mildly noxious to their predators.
Most patients in the clinical trial supporting effectiveness, referred to as A-HeFT, received, in addition to BiDil or placebo, a loop diuretic, an angiotensin converting enzyme inhibitor or an angiotensin II receptor blocker, and a beta blocker, and many also received a cardiac glycoside or an aldosterone antagonist.
While the chemical identity of the inhibitor remained a mystery, the team's data suggested the compound had physiological effects similar to those of a cardiac glycoside called digitalis.
 
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