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A comprehensive framework for evaluation of high pacing frequency and arrhythmic optical mapping signals [PDF]

open access: yesFrontiers in Physiology, 2023
Introduction: High pacing frequency or irregular activity due to arrhythmia produces complex optical mapping signals and challenges for processing.
Girish S. Ramlugun   +16 more
doaj   +2 more sources

Advances in optical mapping for genomic research

open access: yesComputational and Structural Biotechnology Journal, 2020
Recent advances in optical mapping have allowed the construction of improved genome assemblies with greater contiguity. Optical mapping also enables genome comparison and identification of large-scale structural variations.
Yuxuan Yuan   +2 more
doaj   +3 more sources

A fully-automated low-cost cardiac monolayer optical mapping robot [PDF]

open access: yesFrontiers in Cardiovascular Medicine, 2023
Scalable and high-throughput electrophysiological measurement systems are necessary to accelerate the elucidation of cardiac diseases in drug development.
Peter Lee   +15 more
doaj   +2 more sources

Panoramic Endocardial Optical Mapping Demonstrates Serial Rotors Acceleration and Increasing Complexity of Activity During Onset of Cholinergic Atrial Fibrillation

open access: yesJournal of the American Heart Association: Cardiovascular and Cerebrovascular Disease, 2021
Background Activation during onset of atrial fibrillation is poorly understood. We aimed at developing a panoramic optical mapping system for the atria and test the hypothesis that sequential rotors underlie acceleration of atrial fibrillation during ...
Óscar Salvador‐Montañés   +11 more
doaj   +1 more source

Structural Refinement by Direct Mapping Reveals Assembly Inconsistencies near Hi-C Junctions

open access: yesPlants, 2023
High-throughput chromosome conformation capture (Hi-C) is widely used for scaffolding in de novo assembly because it produces highly contiguous genomes, but its indirect statistical approach can introduce connection errors.
Luca Marcolungo   +10 more
doaj   +1 more source

Cardiac involvement in patient-specific induced pluripotent stem cells of myotonic dystrophy type 1: unveiling the impact of voltage-gated sodium channels

open access: yesFrontiers in Physiology, 2023
Myotonic dystrophy type 1 (DM1) is a genetic disorder that causes muscle weakness and myotonia. In DM1 patients, cardiac electrical manifestations include conduction defects and atrial fibrillation.
Marion Pierre   +9 more
doaj   +1 more source

Rotor Localization and Phase Mapping of Cardiac Excitation Waves Using Deep Neural Networks

open access: yesFrontiers in Physiology, 2021
The analysis of electrical impulse phenomena in cardiac muscle tissue is important for the diagnosis of heart rhythm disorders and other cardiac pathophysiology. Cardiac mapping techniques acquire local temporal measurements and combine them to visualize
Jan Lebert   +4 more
doaj   +1 more source

Integration of Engineered “Spark-Cell” Spheroids for Optical Pacing of Cardiac Tissue

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Optogenetic methods for pacing of cardiac tissue can be realized by direct genetic modification of the cardiomyocytes to express light-sensitive actuators, such as channelrhodopsin-2, ChR2, or by introduction of light-sensitized non-myocytes that couple ...
Christianne J. Chua   +4 more
doaj   +1 more source

Voltage/Calcium Uncoupling Underlies Sustained Torsade de Pointes Ventricular Tachyarrhythmia in an Experimental Model of Long QT Syndrome

open access: yesFrontiers in Physiology, 2021
BackgroundClinical experience showed that the majority of Torsade de Pointes (TdP) ventricular tachyarrhythmia (VT) in patients with long QT syndrome (LQTS) are self-terminating (ST), but the few that are non-self-terminating (NST) are potentially fatal.
Herman D. Himel   +7 more
doaj   +1 more source

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