Key result
Angiotensin II (1 nM-10 microM) had no significant inotropic effect on isolated cardiac myocyte preparations from guinea pig ventricle, normal and infarcted rat ventricle, human ventricle, and human atrium.
Why the study?
Does angiotensin II affect myocardial contractility in isolated cardiac myocytes from humans, guinea pigs, and rats?
Does angiotensin II affect myocardial contractility in isolated cardiac myocytes from humans, guinea pigs, and rats?
Angiotensin II does not exert a direct inotropic effect on isolated cardiac myocytes across multiple species, including humans and infarcted rat models.
Authors
No takes yet. Share an insight, caveat, or question.
Angiotensin II lacks direct inotropic effects in isolated myocytes; leaves open indirect or in vivo roles in contractility.
Lefroy et al. (1996) studied Myocardial contractility (n=54). Angiotensin II vs. Basal conditions was evaluated on Myocardial contractility (contraction amplitude). Angiotensin II (1 nM-10 microM) had no significant inotropic effect on isolated cardiac myocyte preparations from guinea pig ventricle, normal and infarcted rat ventricle, human ventricle, and human atrium.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: