Results 111 to 120 of about 19,328,196 (346)

Characterisation of the Na, K pump current in atrial cells from patients with and without chronic atrial fibrillation [PDF]

open access: yes, 2003
<b>Objective:</b> To assess the contribution of the Na, K pump current (<i>I</i><sub>p</sub>) to the action potential duration (APD) and effective refractory period (ERP) in human atrial cells, and to investigate ...
Kane, K.A.   +5 more
core   +1 more source

Thickness‐Gradient Liquid Metal Connectors for Seamless Electrophysiological Sensors

open access: yesAdvanced Science, EarlyView.
Thickness‐gradient liquid metal interfaces with elastomeric substrates enable seamless integration between ultrathin skin‐conformal electrodes and external interconnects. The mechanically compliant connector reduces interfacial mismatch and supports stable ECG/EMG monitoring under bending and motion.
Jinyoung Kim   +3 more
wiley   +1 more source

Atrial Function Assessment in High-Risk Hypertrophic Cardiomyopathy

open access: yesAnatolian Journal of Cardiology, 2023
Eka PrasetyaBudi Mulia, Denny Suwanto
doaj   +1 more source

Atrial Natriuretic Peptide Protects against Histamine-Induced Endothelial Barrier Dysfunction in Vivo [PDF]

open access: yes, 2008
Endothelial barrier dysfunction is a hallmark of many severe pathologies, including sepsis or atherosclerosis. The cardiovascular hormone atrial natriuretic peptide (ANP) has increasingly been suggested to counteract endothelial leakage.
Mayer, Bettina A.   +9 more
core   +1 more source

The Deubiquitinase UCHL1 Drives Susceptibility to Atrial Fibrillation by Stabilizing CaMKII‐δ

open access: yesAdvanced Science, EarlyView.
UCHL1 is highly upregulated in mice and patients with AF. UCHL1 directly binds to and removes K48‐linked polyubiquitin chains from CaMKII‐δ at K251 and enhances CaMKII‐δ stability, which activates RyR2, disrupts Ca2+ handling, and promotes AF. These findings establish UCHL1 as a critical regulator of CaMKII‐δ stability and AF‐related Ca2+ handling ...
Hai‐Lian Bi   +6 more
wiley   +1 more source

Left atrial size and contractile function in healthy dogs and dogs with chronic mitral valve disease

open access: yesPesquisa Veterinária Brasileira
: In humans, left atrial enlargement and reduced contractile functions are associated with adverse cardiovascular events and a poor prognosis in many dilatation of the left atrium occurs with the gradual evolution of chronic mitral valve disease and is ...
Lilian C. Petrus   +7 more
doaj   +1 more source

Left Atrial 4D Blood Flow Dynamics and Hemostasis following Electrical Cardioversion of Atrial Fibrillation

open access: yesFrontiers in Physiology, 2017
Background: Electrical cardioversion in patients with atrial fibrillation is followed by a transiently impaired atrial mechanical function, termed atrial stunning.
Merih Cibis   +8 more
doaj   +1 more source

Early or Delayed Cardioversion in Recent-Onset Atrial Fibrillation

open access: yes, 2019
To the Editor: Pluymaekers et al. (April 18 issue)(1) evaluated the occurrence of spontaneous cardioversion in patients with recent-onset (<36 hours) atrial fibrillation. The proposed wait-and-see approach included cardioversion within 48 hours in the
Crijns, Harry J. G. M.   +2 more
core   +1 more source

Cardiac adrenergic control and atrial fibrillation [PDF]

open access: yes, 2010
Atrial fibrillation (AF) is the most common cardiac arrhythmia, and it causes substantial mortality. The autonomic nervous system, and particularly the adrenergic/cholinergic balance, has a profound influence on the occurrence of AF ...
Workman, A.J.
core   +1 more source

Retrospective Grid Cells in the Medial Entorhinal Cortex Encode Past Paths During Spatial Navigation

open access: yesAdvanced Science, EarlyView.
Retrospective grid cells are identified in the medial entorhinal cortex, with spatial firing patterns that become most grid‐like when activity is projected onto recently traversed locations. Their coding loses spatial precision in darkness and is disrupted during assisted movement, indicating that entorhinal representations incorporate recent path ...
Ruojin Liu   +10 more
wiley   +1 more source

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