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cardiac glycoside

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.06 sec.
cardiac glycoside
n.
Any of several glycosides obtained chiefly from plant sources such as the foxglove, used medicinally to increase the force of contraction of heart muscle and to regulate heartbeats.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.cardiac glycoside - obtained from a number of plants and used to stimulate the heart in cases of heart failure
steroid - any of several fat-soluble organic compounds having as a basis 17 carbon atoms in four rings; many have important physiological effects
digitalin, digitalis, digitalis glycoside - a powerful cardiac stimulant obtained from foxglove


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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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