Why the study?
Does 2,3-butanedione monoxime alter contractile efficiency in excised rabbit left ventricles?
Population
7 excised, red blood cell-perfused, isovolumically beating rabbit left ventricles
Comparison
2,3-butanedione monoxime at 3-4 mM perfusate… vs Control
Design
Preclinical
Authors
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Increases contractile efficiency via cross-bridge modulation in rabbit hearts; hypothesis-generating with no clinical implications yet.
Does 2,3-butanedione monoxime alter contractile efficiency in excised rabbit left ventricles?
In a preclinical rabbit model, 2,3-butanedione monoxime increased contractile efficiency and decreased contractility, demonstrating that direct alteration of cross-bridge cycling changes contractile efficiency.
Watkins et al. (1992) studied this question.
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