Results 11 to 20 of about 455,752 (196)

Is sodium current present in human sinoatrial node cells? [PDF]

open access: yesInternational Journal of Biological Sciences, 2009
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]

open access: yesFrontiers in Genetics, 2021
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]

open access: yesJACC: Case Reports
Alejandro Jiménez Restrepo, MD   +3 more
doaj   +3 more sources

The sophisticated architecture of the rat atrioventricular node [PDF]

open access: yes, 2005
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]

open access: yesCardiovascular Research, 2007
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]

open access: yesAmerican Journal of Physiology-Heart and Circulatory Physiology, 2001
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

open access: yesFrontiers in Pharmacology, 2014
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
doaj   +3 more sources

The pacemaker cell of the sinoatrial node of the rabbit

open access: yesAmerican Journal of Physiology-Heart and Circulatory Physiology, 1978
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

open access: yesCardiovascular Innovations and Applications, 2021
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]

open access: yesPLoS ONE, 2017
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
doaj   +1 more source

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