Results 41 to 50 of about 2,119,388 (341)

Microscopic and ultramicroscopic characteristic of heart valves in human [PDF]

open access: yesМорфологія, 2014
Background. Valvular apparatus of the heart is the frequent object of the surgical operations for today. Morphological changes which are happed within valves of the heart at time of cardiac diseases the modern medicine considers on the clinical ...
Fedoniuk L., Semeniuk T., Bodnar E.
doaj  

Whole-Heart Assessment of Turbulent Kinetic Energy in the Repaired Tetralogy of Fallot

open access: yesApplied Sciences, 2022
Approximately 10% of congenital heart diseases (CHDs) include Tetralogy of Fallot (TOF). Fortunately, due to advanced surgical techniques, most patients survive until adulthood.
Ashifa Hudani   +3 more
doaj   +1 more source

Individualization of atrial tachycardia models for clinical applications: Performance of fiber-independent model [PDF]

open access: yesarXiv, 2023
One of the challenges in the development of patient-specific models of cardiac arrhythmias for clinical applications has been accounting for myocardial fiber organization. The fiber varies significantly from heart to heart, but cannot be directly measured in live tissue.
arxiv  

The role of inhibitory G proteins and regulators of G protein signaling in the in vivo control of heart rate and predisposition to cardiac arrhythmias [PDF]

open access: yes, 2012
Inhibitory heterotrimeric G proteins and the control of heart rate. The activation of cell signaling pathways involving inhibitory heterotrimeric G proteins acts to slow the heart rate via modulation of ion channels.
Ang, R, Opel, A, Tinker, A
core   +1 more source

Peculiarities of macro- and cytometric assessment of morphological structures of the domestic pig heart

open access: yesRegulatory Mechanisms in Biosystems
The cardiovascular system, which includes the heart, is one of the essential systems of the human and animal body. With its participation, the blood supply of the organs takes place; it promotes the outflow of lymph from the organs and its transport into
L. P. Horalskyi   +4 more
doaj   +1 more source

Effect of Alpha-Lipoic Acid on Rat Ventricles and Atria under LPS-Induced Oxidative Stress

open access: yesAntioxidants, 2022
Alpha-lipoic acid (α-LA) is a disulfide compound and one of the most effective antioxidants. Many studies have indicated positive effects of α-LA in the prevention of pathologic conditions mediated by oxidative stress, such as cardiovascular diseases ...
Beata Skibska   +3 more
doaj   +1 more source

A Case of Coumadin Ridge Confirmed by Surgery: Comparison between Cardiac Computed Tomographic Images and Operative Findings

open access: yes대한영상의학회지, 2019
The coumadin ridge, a ridge of atrial tissue separating the left atrial appendage from the left upper pulmonary vein, is considered to be a normal anatomic variant. A prominent coumadin ridge can be easily mistaken for a tumor or thrombus.
Mi Ran Yeon   +3 more
doaj   +1 more source

Developmental expression of a functional TASK-1 2P domain K+ channel in embryonic chick heart

open access: yesJournal of Biomedical Science, 2009
Background Background K+ channels are the principal determinants of the resting membrane potential (RMP) in cardiac myocytes and thus, influence the magnitude and time course of the action potential (AP). Methods RT-PCR and in situ hybridization are used
Creazzo Tony L   +3 more
doaj   +1 more source

Haemogenic endocardium contributes to transient definitive haematopoiesis. [PDF]

open access: yes, 2013
Haematopoietic cells arise from spatiotemporally restricted domains in the developing embryo. Although studies of non-mammalian animal and in vitro embryonic stem cell models suggest a close relationship among cardiac, endocardial and haematopoietic ...
Arshi, Armin   +14 more
core   +1 more source

The Impact of Standard Ablation Strategies for Atrial Fibrillation on Cardiovascular Performance in a Four-chamber Heart Model [PDF]

open access: yesarXiv, 2022
Atrial fibrillation is one of the most frequent cardiac arrhythmias in the industrialized world and ablation therapy is the method of choice for many patients. However, ablation scars alter the electrophysiological activation and the mechanical behavior of the affected atria.
arxiv  

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