Ivabradine improves survival and attenuates cardiac remodeling in isoproterenol-induced myocardial injury.

Abstract:

:This study investigated whether ivabradine, a selective If current inhibitor reducing heart rate (HR), is able to improve survival and prevent left ventricular (LV) remodeling in isoproterenol-induced heart damage. Wistar rats were treated for 6 weeks: controls (n = 10), ivabradine (10 mg/kg/day orally; n = 10), isoproterenol (5 mg/kg/day intraperitoneally; n = 40), and isoproterenol plus ivabradine (n = 40). Isoproterenol increased mortality, induced hypertrophy of both ventricles and LV fibrotic rebuilding, and reduced systolic blood pressure (SBP). Ivabradine significantly increased survival rate (by 120%) and prolonged average survival time (by 20%). Furthermore, ivabradine reduced LV weight and hydroxyproline content in soluble and insoluble collagen fraction, reduced HR and attenuated SBP decline. We conclude that ivabradine improved survival in isoproterenol-damaged hearts.

journal_name

Fundam Clin Pharmacol

authors

Simko F,Baka T,Repova K,Aziriova S,Krajcirovicova K,Paulis L,Adamcova M

doi

10.1111/fcp.12620

subject

Has Abstract

pub_date

2020-10-24 00:00:00

eissn

0767-3981

issn

1472-8206

pub_type

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