Results 71 to 80 of about 1,321,275 (276)

Help system for medical diagnosis of the electrocardiogram [PDF]

, 2011
This presentation is part of a work that aims to create an interactive learning medical system of ECG events and pathologies diagnose. The system can be seen as an interactive game in wish the user will practice with ECG signal of several pathologies For
Lopes, Vanda, Teixeira, João Paulo
core   +1 more source

Molecular Pathway for the Localized Formation of the Sinoatrial Node [PDF]

Circulation Research, 2007
The sinoatrial node, which resides at the junction of the right atrium and the superior caval vein, contains specialized myocardial cells that initiate the heart beat. Despite this fundamental role in heart function, the embryonic origin and mechanisms of localized formation of the sinoatrial node have not been defined.
Mommersteeg, M, Hoogaars, WM, Prall, O, de Gier-de Vries, C, Wiese, C, Clout, D, Papaioannou, V, Brown, N, Harvey, R, Moorman, A, Christoffels, V   +10 more
openaire   +3 more sources

Atrial fibrillation, sinoatrial and atrioventricular node dysfunction in a mouse model of heart failure with preserved ejection fraction

Experimental Physiology, EarlyView.
Summary of the timeline of characterized events related to atrial fibrilation (AF) and diastolic dysfunction in a mouse heart failure with preserved ejection fraction (HFpEF) model. Three weeks after the initiation of the diet regimen with high fat diet (HFD) and Nω‐nitro‐l‐arginine methyl ester (l‐NAME) in drinking water to induce HFpEF, significantly
Bernadin Ndongson‐Dongmo, Reinhard Bauer, Finn Olav Levy   +2 more
wiley   +1 more source

Effects of the network structural properties on its controllability

, 2007
In a recent paper, it has been suggested that the controllability of a diffusively coupled complex network, subject to localized feedback loops at some of its vertices, can be assessed by means of a Master Stability Function approach, where the network ...
Francesco Sorrentino, Peskin C., Strogatz S.   +2 more
core   +1 more source

TRPM7 regulates angiotensin II-induced sinoatrial node fibrosis in sick sinus syndrome rats by mediating Smad signaling

Heart and Vessels, 2018
Sinoatrial node fibrosis is involved in the pathogenesis of sinus sick syndrome (SSS). Transient receptor potential (TRP) subfamily M member 7 (TRPM7) is implicated in cardiac fibrosis. However, the mechanisms underlying the regulation of sinoatrial node
Hongbin Zhong, Tingjun Wang, Guili Lian, Changsheng Xu, Huajun Wang, Liang-di Xie   +5 more
semanticscholar   +1 more source

Physical exercise intervention in glycogen storage disease IIIa: Feasibility and multisystem benefits

Experimental Physiology, EarlyView.
Abstract Glycogen storage disease III (GSD‐III) is caused by an inherited deficiency of the glycogen debranching enzyme. Affecting the liver, muscle and heart, GSD‐IIIa is the most common GSD‐III subtype. We evaluated the feasibility and safety of a physical exercise intervention in patients with GSD‐IIIa and its effects at the multisystem level.
Asunción Bustos‐Sellers, Almudena Montalvo‐Pérez, Araceli Boraita, Gonzalo Saco‐Ledo, Lidia B. Alejo, David Barranco‐Gil, Pedro L. Valenzuela, Nerea López‐Maldonado, Roser Ferrer‐Costa, Javier Esparcia‐Estrela, Celia Monteagudo‐López, Tomàs Pinós, Alejando Santos‐Lozano, Alejandro Lucia, Alfredo Santalla   +14 more
wiley   +1 more source

The effect of gag reflex on cardiac sympatovagal tone [PDF]

, 2012
Objectives: Heart velocity may be influenced by gagging. The medulla oblongata receives the afferents of gag reflex. Neuronal pools of vomiting, salivation and cardiac parasympathetic fibers are very close in this area.
Jamshir, M., Maleki, A., Mehran Hosseini, S.   +2 more
core   +2 more sources

Potassium channels in the sinoatrial node and their role in heart rate control

Channels, 2018
Potassium currents determine the resting membrane potential and govern repolarisation in cardiac myocytes. Here, we review the various currents in the sinoatrial node focussing on their molecular and cellular properties and their role in pacemaking and ...
Qadeer Aziz, Yiwen Li, A. Tinker
semanticscholar   +1 more source

Human sinoatrial node structure: 3D microanatomy of sinoatrial conduction pathways [PDF]

Progress in Biophysics and Molecular Biology, 2016
Despite a century of extensive study on the human sinoatrial node (SAN), the structure-to-function features of specialized SAN conduction pathways (SACP) are still unknown and debated. We report a new method for direct analysis of the SAN microstructure in optically-mapped human hearts with and without clinical history of SAN dysfunction.Two explanted ...
Thomas A. Csepe, Jichao Zhao, Brian J. Hansen, Ning Li, Lidiya V. Sul, Praise Lim, Yufeng Wang, Orlando P. Simonetti, Ahmet Kilic, Peter J. Mohler, Paul M.L. Janssen, Vadim V. Fedorov   +11 more
openaire   +4 more sources

Control of sinus venous valve and sinoatrial node development by endocardial NOTCH1.

Cardiovascular Research, 2019
AIMS Sinus venous valve (SVV) and sinoatrial node (SAN) develop together at the sinoatrial junction during embryogenesis. SVV ensures unidirectional cardiac input and SAN generates sinus rhythmic contraction, respectively; both functions are essential ...
Yidong Wang, Pengfei Lu, Liping Jiang, Bingruo Wu, Bin Zhou   +4 more
semanticscholar   +1 more source