Results 11 to 20 of about 12,234 (213)
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
doaj +3 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
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 +2 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
doaj +3 more sources
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
Parasympathetic postganglionic pathways to the sinoatrial node
Vagal ganglia that innervate the canine sinoatrial node (SAN) have been localized to a fat pad overlying and surrounding the right pulmonary vein complex (PVFP). The ventral epicardial surface of the right atrium was mapped in seven dogs anesthetized with alpha-chloralose after beta-blockade (timolol) and cardiac sympathetic and parasympathetic ...
K M, Bluemel +4 more
openaire +3 more sources
Possible sinoatrial node dysfunction in a 6-month-old domestic shorthair cat. [PDF]
Case summary A six-month-old male entire domestic shorthair cat was presented to the ophthalmology department for nasolacrimal duct cannulation and flushing, and castration under general anaesthesia.
Hillen F, Locquet L.
europepmc +2 more sources
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
doaj +1 more source

