Results 81 to 90 of about 455,752 (196)

In Silico Characterization of the Sinoatrial Node (v1.0)

, 2022
In silico experiments to study the sinoatrial node characteristics. The experiment script is able to modify several electrophysiological parameters using as an input a vtk ...
Sanchez, Jorge, Loewe, Axel, Amsaleg, Antoine   +2 more
core   +1 more source

Análise comparativa entre a vascularização arterial ventricular e do nó sinoatrial em corações de cães Comparative analysis between both ventricular and sinoatrial node arterial vascularization in heart of dogs

Pesquisa Veterinária Brasileira, 2013
Utilizamos nesta pesquisa 40 corações de cães adultos, machos e fêmeas, de idades variadas, que não portavam nenhuma afecção cardíaca. Os corações tiveram as artérias coronárias injetadas, separadamente, com Neoprene Látex 450, corado com pigmento ...
Caio Biasi, Vicente Borelli, Rodrigo F. Prazeres, Phelipe O. Favaron, Valdir Pavanelo Junior, Thiago P.A. Aloia, Pedro P. Bombonato   +6 more
doaj  

Use of machine learning and Poincaré density grid in the diagnosis of sinus node dysfunction caused by sinoatrial conduction block in dogs

Journal of Veterinary Internal Medicine
Background Sinus node dysfunction because of abnormal impulse generation or sinoatrial conduction block causes bradycardia that can be difficult to differentiate from high parasympathetic/low sympathetic modulation (HP/LSM).
Wyatt Hutson Flanders, N. Sydney Moïse, Niels F. Otani   +2 more
doaj   +1 more source

Glucagon‐Like Peptide‐1 Agonists and Blood Pressure Regulation: Molecular Mechanisms and Cardiovascular Implications

Pharmacology Research &Perspectives, Volume 14, Issue 5, October 2026.
ABSTRACT Incretin effect helps in regulating glucose homeostasis and maintaining glycaemic control within the human body. This effect is achieved by the two naturally occurring incretin hormones: glucose‐dependent insulinotropic polypeptide (GIP) and glucagon‐like peptide‐1 (GLP‐1).
Nora H. J. Alharbi
wiley   +1 more source

Self-administered intranasal etripamil: a breakthrough in PSVT first-line treatment

Global Cardiology
Dear Editor,  PSVT, AVRT, and AVNRT are types of arrhythmia resulting from disruptions in the heart's electrical activity, originating from the sinoatrial node and propagating via the atria to the AV node, causing sudden symptoms like palpitations ...
Muddassir Khalid, Aqsa Asif, Sara Rasheed   +2 more
doaj   +1 more source

Potential effects of intrinsic heart pacemaker cell mechanisms on dysrhythmic cardiac action potential firing

Frontiers in Physiology, 2015
The heart’s regular electrical activity is initiated by specialized cardiac pacemaker cells residing in the sinoatrial node. The rate and rhythm of spontaneous action potential firing of sinoatrial node cells are regulated by stochastic mechanisms that ...
Yael eYaniv, Kenta eTsutsui, Edward eLakatta   +2 more
doaj   +1 more source

The Binding of Fibroblast Growth Factor 23 (FGF23) to FGF Receptor‐αKlotho Complex Increases Sinoatrial Electrical Activity

Acta Physiologica, Volume 242, Issue 10, October 2026.
ABSTRACT Aim This study aims to investigate whether the Fibroblast Growth Factor 23 (FGF23) modulates the electrical activity of sinoatrial (SAN) cells. The canonical function of FGF23 is to regulate body phosphorus and calcium homeostasis by activating the FGF1 receptors (FGFR1)/α‐Klotho complex in the kidney and parathyroid glands.
Giorgia Bertoli, Patrizia Benzoni, Serena Canzolino, David Molla, Raffaella Milanesi, Chiara Piantoni, Makoto Kuro‐o, Carmen Delgado, Gema Ruiz‐Hurtado, Mirko Baruscotti, Annalisa Bucchi   +10 more
wiley   +1 more source

Exercise and Autonomic Cardiovascular Function—Insights From Spinal Cord‐Injured Humans: A Narrative Review

Acta Physiologica, Volume 242, Issue 10, October 2026.
ABSTRACT The cardiovascular response to acute exercise is mediated by the autonomic nervous system (ANS) control mechanisms that modulate vascular resistance to support blood pressure and ensure adequate blood flow to active muscles. These autonomic neurocirculatory control mechanisms include a feedforward mechanism, known as central command, and three
Rasmus Kopp Hansen, Ryan Godsk Larsen, Tom E. Nightingale, Daniel D. Hodgkiss, Niels H. Secher, Stefanos Volianitis   +5 more
wiley   +1 more source

A protective role of Nox1/NADPH oxidase in a mouse model with hypoxia-induced bradycardia

Journal of Pharmacological Sciences, 2015
Although it has been reported that endotoxin-induced expression of Nox1 in the heart contributes to apoptosis in cardiomyocytes, functional role of Nox1 at the physiological expression level has not been elucidated.
Akiteru Kojima, Akio Matsumoto, Hirofumi Nishida, Yoshie Reien, Kazumi Iwata, Takeshi Shirayama, Chihiro Yabe-Nishimura, Haruaki Nakaya   +7 more
doaj   +1 more source

Coupling between two Resonant model sinoatrial node cells.

, 2019
A: Parameters of the action potential of sinoatrial node cell. MDP is a maximal diastolic potential, Vmax is the maximum potential, and VTh is the threshold potential. B: State controller of the Resonant model of a sinoatrial node cell.
Partha S. Roop (6725684), Nitish D. Patel (6725678), Avinash Malik (6725681), Sucheta Sehgal (6725675), Mark L. Trew (6725687)   +4 more
core   +1 more source