Results 51 to 60 of about 10,333 (179)

Three-dimensional computer model of the right atrium including the sinoatrial and atrioventricular nodes predicts classical nodal behaviours.

open access: yesPLoS ONE, 2014
The aim of the study was to develop a three-dimensional (3D) anatomically-detailed model of the rabbit right atrium containing the sinoatrial and atrioventricular nodes to study the electrophysiology of the nodes. A model was generated based on 3D images
Jue Li   +5 more
doaj   +1 more source

Effect of Cilnidipine on L- and T-type Calcium Currents in Guinea Pig Ventricle and Action Potential in Rabbit Sinoatrial Node

open access: yesJournal of Pharmacological Sciences, 2004
Cilnidipine, a dihydropyridine Ca2+ channel antagonist, is known to have inhibitory effects on both L- and N-type Ca2+ currents. In the present study, we examined the effect of cilnidipine on myocardial L- and T-type Ca2+ currents and sinoatrial node ...
Kentaro Takeda   +4 more
doaj   +1 more source

SHOX2 refines the identification of human sinoatrial nodal cell population in the in vitro cardiac differentiation

open access: yesRegenerative Therapy, 2022
Introduction: Dysfunction of the sinoatrial node (SAN) cells causes arrhythmias, and many patients require artificial cardiac pacemaker implantation. However, the mechanism of impaired SAN automaticity remains unknown, and the generation of human SAN ...
Takayuki Wakimizu   +9 more
doaj   +1 more source

Blood pressure effects of SGLT2 inhibitors and GLP‐1 receptor agonists: Mechanisms, trial evidence and Real‐world data

open access: yesBritish Journal of Clinical Pharmacology, EarlyView.
SGLT2 inhibitors and GLP‐1 receptor agonists modestly lower blood pressure across diverse patient populations, including those without diabetes. These effects appear largely independent of glycaemic control and offer additive value in high‐risk patients with overlapping comorbidities.
Andrej Belančić   +7 more
wiley   +1 more source

Arrhythmias associated with immune checkpoint inhibitor therapy—A clinical perspective

open access: yesBritish Journal of Pharmacology, EarlyView.
Immune checkpoint inhibitors (ICIs) have transformed cancer therapy but are associated with a growing spectrum of cardiovascular immune‐related adverse events. Among these, arrhythmias represent a rare yet potentially life‐threatening complication. ICI‐induced arrhythmias encompass a wide clinical spectrum, including atrial arrhythmias, conduction ...
Dong Wang   +4 more
wiley   +1 more source

Mathematical Models of Cardiac Pacemaking Function

open access: yesFrontiers in Physics, 2013
Over the past half century, there has been intense and fruitful interaction between experimental and computational investigations of cardiac function. This interaction has, for example, led to deep understanding of cardiac excitation-contraction coupling;
Pan eLi   +3 more
doaj   +1 more source

Werner Irnich: Pioneer in the Development of the Dual‐Chamber Pacemaker—An Obituary

open access: yesPacing and Clinical Electrophysiology, EarlyView.
ABSTRACT Fifty years ago, Werner Irnich presented the concept of an optimal pacemaker capable of responding appropriately to various cardiac arrhythmias and perceptual disturbances, and intended to be used in 85% of patients. With this concept, Irnich was far ahead of his time. His proposed circuitry for AV block and atrial fibrillation, as well as his
Bernd Lemke
wiley   +1 more source

Electrophysiological and Molecular Mechanisms of Sinoatrial Node Mechanosensitivity

open access: yesFrontiers in Cardiovascular Medicine, 2021
The understanding of the electrophysiological mechanisms that underlie mechanosensitivity of the sinoatrial node (SAN), the primary pacemaker of the heart, has been evolving over the past century.
Daniel Turner   +6 more
doaj   +1 more source

Cerebrovascular regulation during heat stress

open access: yesExperimental Physiology, EarlyView.
Abstract Given that the brain is a highly metabolic organ and is enclosed by the skull, effective regulation of cerebral blood flow (CBF), not only for oxygen and nutrients supply but also as a means of convective heat exchange, is critical for preventing excessive elevations in brain temperature.
Kanoko Ito, Manabu Shibasaki
wiley   +1 more source

Resveratrol enhances the inotropic effect but inhibits the proarrhythmic effect of sympathomimetic agents in rat myocardium [PDF]

open access: yesPeerJ, 2017
Background Resveratrol is a cardioprotective agent with known antiarrhythmic effects that has recently been shown to inhibit phosphodiesterase (PDE) enzyme activity.
Jesús Hernandez-Cascales
doaj   +2 more sources

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