Results 11 to 20 of about 455,752 (196)
Is sodium current present in human sinoatrial node cells? [PDF]
Pacemaker activity of the sinoatrial node has been studied extensively in various animal species, but is virtually unexplored in man. As such, it is unknown whether the fast sodium current (INa) plays a role in the pacemaker activity of the human ...
Arie O. Verkerk, Ronald Wilders, Marcel M.G.J. van Borren, Hanno L. Tan
doaj +7 more sources
Genetic Complexity of Sinoatrial Node Dysfunction [PDF]
The pacemaker cells of the cardiac sinoatrial node (SAN) are essential for normal cardiac automaticity. Dysfunction in cardiac pacemaking results in human sinoatrial node dysfunction (SND).
Michael J. Wallace +16 more
doaj +3 more sources
Translational Anatomy of the Sinoatrial Node [PDF]
Alejandro Jiménez Restrepo, MD +3 more
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The sophisticated architecture of the rat atrioventricular node [PDF]
In the mammalian heart, the action potential spontaneously generated in the sinoatrial (SA) node propagates through the atria to reach the atrioventricular (AV) node.
Yoo, Shin
core +9 more sources
SCN5A and sinoatrial node pacemaker function [PDF]
The SCN5A gene encodes specific voltage-dependent Na+ channels abundant in cardiac muscle that open and close at specific stages of cardiac activity in response to voltage change, thereby controlling the magnitude and timecourse of voltage-dependent Na+ currents (iNa) in cardiac muscle cells.
Lei, Ming +3 more
openaire +3 more sources
Gap junctions in the rabbit sinoatrial node [PDF]
In comparison to the cellular basis of pacemaking, the electrical interactions mediating synchronization and conduction in the sinoatrial node are poorly understood. Therefore, we have taken a combined immunohistochemical and electrophysiological approach to characterize gap junctions in the nodal area.
S, Verheule +4 more
openaire +3 more sources
CaMKII in sinoatrial node physiology and dysfunction
The calcium and calmodulin dependent protein kinase II (CaMKII) is present in sinoatrial node (SAN) pacemaker cells and is required for physiological fight or flight SAN beating rate responses.
Yuejin eWu +2 more
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The pacemaker cell of the sinoatrial node of the rabbit
Rabbit sinoatrial nodes were isolated and studied in an attempt to determine the cell of origin of the true pacemaker potential. Cells of the sinoatrial node of the rabbit giving rise to the characteristic true pacemaker potential were iontophoretically tagged with lanthanum.
J J, Taylor, L S, D'Agrosa, E M, Burns
openaire +3 more sources
Junctional Pacemaker May Replace the Sinoatrial Node
Junctional rhythm is usually seen in the clinic with different causes. We report a case of bicuspid aortic valve accompanied by sinoatrial node dysfunction.
Min Lin +4 more
doaj +1 more source
Biochemical and biomechanical properties of the pacemaking sinoatrial node extracellular matrix are distinct from contractile left ventricular matrix. [PDF]
Extracellular matrix plays a role in differentiation and phenotype development of its resident cells. Although cardiac extracellular matrix from the contractile tissues has been studied and utilized in tissue engineering, extracellular matrix properties ...
Jessica M Gluck +8 more
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