Optogenetic Hyperpolarization of Cardiomyocytes Terminates Ventricular Arrhythmia
نویسندگان
چکیده
منابع مشابه
Optogenetic defibrillation terminates ventricular arrhythmia in mouse hearts and human simulations.
Ventricular arrhythmias are among the most severe complications of heart disease and can result in sudden cardiac death. Patients at risk currently receive implantable defibrillators that deliver electrical shocks to terminate arrhythmias on demand. However, strong electrical shocks can damage the heart and cause severe pain. Therefore, we have tested optogenetic defibrillation using expression...
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Objective(s): Ventricular arrhythmias including ventricular tachycardia (VT) and ventricular fibrillation (VF) are the most important causes of mortality rate. Gallic acid (GA) has beneficial effects on cardiovascular diseases. The aim of this study was to evaluate the effects of GA on electrophysiological parameters such as QRS complex, heart rate (HR), PR interval pa...
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Optogenetics is an emerging technology for the manipulation and control of excitable tissues, such as the brain and heart. As this technique requires the genetic modification of cells in order to inscribe light sensitivity, for cardiac applications, here we describe the process through which neonatal rat ventricular myocytes are virally infected in vitro with channelrhodopsin-2 (ChR2). We also ...
متن کاملOptogenetic activation of Gq signalling modulates pacemaker activity of cardiomyocytes.
AIMS Investigation of Gq signalling with pharmacological agonists of Gq-coupled receptors lacks spatio-temporal precision. The aim of this study was to establish melanopsin, a light-sensitive Gq-coupled receptor, as a new tool for the investigation of spatial and temporal effects of Gq stimulation on pacemaking in cardiomyocytes at an early developmental stage. METHODS AND RESULTS A vector fo...
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ژورنال
عنوان ژورنال: Frontiers in Physiology
سال: 2019
ISSN: 1664-042X
DOI: 10.3389/fphys.2019.00498