Congestive heart failure (HF) remains a major cause of cardiac-related morbidity and mortality, despite major therapeutic advancements. A newer class of medications has recently been developed which targets the root cause of HF, which is reduced myocardial contractility. This article aims to highlight the cardiac myosin activator class of drugs and the trials to date highlighting their effects on HF outcomes.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8939388 | PMC |
| http://dx.doi.org/10.4103/HEARTVIEWS.HEARTVIEWS_39_21 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Model-Informed Recommendation of Mavacamten Posology for Chinese Adults With Obstructive Hypertrophic Cardiomyopathy.
CPT Pharmacometrics Syst Pharmacol
January 2025
Huashan Hospital, Fudan University, Shanghai, China.
Mavacamten is a cardiac myosin inhibitor for adults with obstructive hypertrophic cardiomyopathy (HCM). Dose optimization is performed 4 weeks after starting mavacamten, guided by periodic echo measurements of Valsalva left ventricular outflow tract gradient (VLVOTg) and left ventricular ejection fraction (LVEF). Previously, a population pharmacokinetic (PPK) model was developed and exposure-response (E-R) of VLVOTg (efficacy) and LVEF (safety) was used to identify the mavacamten titration regimen with the optimal benefit/risk ratio, now included in the US prescribing information.
View Article and Find Full Text PDFThe Mechanism of Modulation of Cardiac Force by Temperature.
Int J Mol Sci
January 2025
PhysioLab, University of Florence, 50019 Sesto Fiorentino, Italy.
In maximally Ca-activated demembranated fibres from the mammalian skeletal muscle, the depression of the force by lowering the temperature below the physiological level (~35 °C) is explained by the reduction of force in the myosin motor. Instead, cooling is reported to not affect the force per motor in Ca-activated cardiac trabeculae from the rat ventricle. Here, the mechanism of the cardiac performance depression by cooling is reinvestigated with fast sarcomere-level mechanics.
View Article and Find Full Text PDFHypertrophic Cardiomyopathy: New Clinical and Therapeutic Perspectives of an "Old" Genetic Myocardial Disease.
Genes (Basel)
January 2025
Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua Medical School, 35128 Padova, Italy.
Since its first pathological description over 65 years ago, hypertrophic cardiomyopathy (HCM), with a worldwide prevalence of 1:500, has emerged as the most common genetically determined cardiac disease. Diagnostic work-up has dramatically improved over the last decades, from clinical suspicion and abnormal electrocardiographic findings to hemodynamic studies, echocardiography, contrast-enhanced cardiac magnetic resonance, and genetic testing. The implementation of screening programs and the use of implantable cardioverter defibrillators (ICDs) for high-risk individuals have notably reduced arrhythmic sudden deaths, altering the disease's mortality profile.
View Article and Find Full Text PDFThe Efficacy and Safety of Cardiac Myosin Inhibitors Versus Placebo in Patients with Symptomatic Obstructive Hypertrophic Cardiomyopathy: A Meta-Analysis of Randomized Controlled Trials.
Am J Cardiol
January 2025
Department of Cardiovascular Medicine, Baystate Medical Center and Division of Cardiovascular Medicine, University of Massachusetts-Baystate, Springfield, Massachusetts, USA. Electronic address: https://twitter.com/AGoldsweig.
Introduction: Obstructive hypertrophic cardiomyopathy (oHCM) is a genetic disorder characterized by myocardial hypertrophy, which can obstruct left ventricular outflow. Cardiac myosin inhibitors (CMIs) have emerged as a novel therapeutic agent targeting cardiac muscle hypercontractility.
Objective: To compare the efficacy and safety of CMIs mavacamten and aficamten vs.
Palmitic acid induces cardiomyocyte apoptosis by enhancing the KLF4/cMLCK signaling pathway.
Gene
January 2025
Laboratory of Molecular Biology, Department of Biochemistry, School of Basic Medical Sciences, Anhui Medical University, Hefei, China. Electronic address:
Hyperlipidemia and myocardial apoptosis caused by myocardial ischemia are the main causes of high mortality rates in cardiovascular diseases. Previous studies have indicated that Krüppel-like factor 4 (KLF4) is involved in the induction of cardiac myocyte apoptosis under various stress conditions. In current study, we discovered that KLF4 also participates in palmitic acid (PA)-induced cardiac myocyte apoptosis.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!