Results 91 to 100 of about 922,278 (260)

Effects of age on the prevalence of cardiac dysrhythmias in ponies [PDF]

, 2010
This study describes the prevalence of cardiac dysrhythmias occurring over a single 24 h period in ponies and compares the heart rate and frequency of dysrhythmias in two groups of ponies of different ages Electrocardiograms were recorded using a Holter ...
Pirie, Scott; id_orcid, Rezakhani, A., Blissitt, Karen   +2 more
core  

Cryoballoon ablation without use of contrast for the treatment of paroxysmal atrial fibrillation

Cardiology Journal
BACKGROUND: Cryoballoon ablation (CBA) for atrial fibrillation (AF) is usually preceded by demonstrating pulmonary vein (PV) occlusion using contrast. The aim of the study was to determine efficacy and safety of a simplified protocol for CBA performed ...
Paweł Derejko, Jacek Kuśnierz, Aleksander Bardyszewski, Michał Orczykowski, Dobromiła Dzwonkowska, Magdalena Polańska-Skrzypczyk, Łukasz Jan Szumowski   +6 more
doaj   +1 more source

Proton Quantum Tunneling: Influence and Relevance to Acidosis-Induced Cardiac Arrhythmias/Cardiac Arrest. [PDF]

Pathophysiology, 2021
Ababneh O, Qaswal AB, Alelaumi A, Khreesha L, Almomani M, Khrais M, Khrais O, Suleihat A, Mutleq S, Al-Olaimat Y, Nawafleh S.   +10 more
europepmc   +1 more source

Macrophage GLUD1 is Essential for Redox Balance and Immune Homeostasis in Cardiac Injury

Advanced Science, EarlyView.
Excessive free radical production and dysregulated immune responses are key contributors to myocardial ischemia‐reperfusion (IR) injury. Macrophage GLUD1 activity safeguards against HIF‐1α accumulation and maladaptive responses to IR‐induced ROS production.
Tingting Jin, Chaojie Lai, Qingyan Zhou, Ruilin Wang, Yiping Tong, Wentao Chen, Nikola Rabrenovic, Tingyu Zhang, Xinrong Ren, Chengchen Huang, Jiawen Chen, Ran Li, Luyang Yu, Massimiliano Mazzone, Wenbin Zhang, Guosheng Fu, Min Shang   +16 more
wiley   +1 more source

Arrhythmias

, 2015
Cardiac arrhythmias are among the most complex cases facing any clinician. While the field appears well defined and structured, the range of possible arrhythmias, how they are identified and how they should be managed are open to infinite variations that
Rolley, Adam
core  

Mitochondrial Dysfunction in Cardiac Arrhythmias

, 2023
Electrophysiological and structural disruptions in cardiac arrhythmias are closely related to mitochondrial dysfunction. Mitochondria are an organelle generating ATP, thereby satisfying the energy demand of the incessant electrical activity in the heart.
Zhao V. Wang, Yingfeng Deng, Zhen Bouman Chen, June-Wha Rhee, Yunqiu Jiang, Jielin Deng   +5 more
core   +1 more source

Human Engineered Heart Tissues Reproduce Trigger‐ and Substrate‐Driven Mechanisms of Ventricular Tachycardia

Advanced Science, EarlyView.
Engineered heart tissues (EHTs) derived from human iPSCs replicate mechanisms of ventricular tachycardia at the tissue level. Acquired Long‐QT conditions cause early afterdepolarizations, wavebreak, and transient rotors; in contrast, focal cryoinjury forms a stable substrate that supports ongoing reentry.
Matthew Fiedler, Alejandra Vasquez Limeta, Ernesto Reyes Sanchez, Leah Carter, Francisco Altamirano   +4 more
wiley   +1 more source

Mathematical Modeling to Investigate Antiarrhythmic Drug Side Effects: Rate-Dependence Role in Ionic Currents and Action Potentials Shape in the O’Hara Model [PDF]

Sudden cardiac death due to ventricular arrhythmia is one of the leading causes of mortality in the world. In the last decades, it has proven that anti-arrhythmic drugs, which prolong the refractory period by means of prolongation of the cardiac action ...
Bugana, Marco
core  

Single‐Nucleus RNA Sequencing Identifies CREM as a Brake on Myofiber Hypertrophy in Chickens

Advanced Science, EarlyView.
Single‐nucleus RNA sequencing on 91 144 nuclei from postnatal chicken pectoralis major between fast‐growing broilers (FG) and slow‐growing layers (SG) identifies the transcriptional factor CREM as a novel brake of myofiber hypertrophy. Mechanistically, functional validation experiments confirm that CREM activates the promoter of JUN and CREM deletion ...
Shuang Gu, Xiyu Zhao, Zheyi Jiang, Chaoliang Wen, Chaoyi Wang, Qiulian Wang, Qiang Huang, Fangren Lan, Shenghui Wu, Junying Li, Congjiao Sun, Huadong Yin, Ning Yang   +12 more
wiley   +1 more source

PROPAPHENONE IN TREATING CARDIAC ARRHYTHMIAS

, 2001
Propaphenone in treating cardiac ...
A. V. Marenich
core