Results 81 to 90 of about 347,894 (338)

Etiological diagnosis, prognostic significance and role of electrophysiological study in patients with Brugada ECG and syncope. [PDF]

open access: yes, 2017
BACKGROUND: Syncope is considered a risk factor for life-threatening arrhythmias in Brugada patients. Distinguishing a benign syncope from one due to ventricular arrhythmias is often difficult, unless an ECG is recorded during the episode.
Anselmino, M   +14 more
core   +2 more sources

High‐Throughput MicroED for Probing Ion Channel Dynamics

open access: yesAdvanced Science, EarlyView.
High‐throughput MicroED offers a new approach for visualizing ion channel dynamics. This approach reveals NaK’s sodium binding modes and NaK2CNG’s potassium‐induced selectivity filter dilation and gating. By capturing these distinct structures, this work challenges traditional models of ion channel permeation and selectivity. Abstract Ion channels play
Marc J Gallenito   +4 more
wiley   +1 more source

Gene Transfer of Engineered Calmodulin Alleviates Ventricular Arrhythmias in a Calsequestrin-Associated Mouse Model of Catecholaminergic Polymorphic Ventricular Tachycardia [PDF]

open access: yes, 2018
Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a familial arrhythmogenic syndrome characterized by sudden death. There are several genetic forms of CPVT associated with mutations in genes encoding the cardiac ryanodine receptor (RyR2 ...
Belevych, Andriy E   +12 more
core   +1 more source

LncRNA Foxo6os as a Novel “ Scaffold” Mediates MYBPC3 in Combating Pathological Cardiac Hypertrophy and Heart Failure

open access: yesAdvanced Science, EarlyView.
Schematic overview showing that forkhead box O6, opposite strand (Foxo6os) acts as a “scaffold”, directly binding myosin‐binding protein‐C (MYBPC3) and recruiting protein kinase C (PKC‐α) to mediate site‐specific phosphorylation of MYBPC3. This post‐translational modification supports cardiac contraction by regulating L‐type Ca2+ channels, especially ...
Jie Sheng   +9 more
wiley   +1 more source

Neurogenic disturbances of cardiac rhythm [PDF]

open access: yes, 2014
Arrhythmias are disturbances of electrical activation of the heart and are commonly encountered clinical conditions. Although typically associated with cardiac pathology, they have also been described in stroke and epilepsy.
Loh, Daniel, Pullicino, Patrick
core  

Endothelin and the ischaemic heart [PDF]

open access: yes, 2005
Soon after its identification as a powerful vasoconstrictor peptide, endothelin (ET-1) was implicated as a detrimental agent involved in determining the outcome of myocardial ischaemia and reperfusion.
Kane, K.A., McCabe, C., Wainwright, C.L.
core   +1 more source

Physical Reservoir Computing for Real‐Time Electrocardiogram Arrhythmia Detection Through Controlled Ion Dynamics in Electrochemical Random‐Access Memory

open access: yesAdvanced Electronic Materials, EarlyView.
This study presents an ECRAM‐based physical reservoir computing system for real‐time electrocardiogram arrhythmia detection. By optimizing electrolyte ionic conductivity and channel ionic diffusivity, it achieves including non‐linear dynamics, millisecond‐scale tunable retention, low‐power operation, and minimal variation.
Kyumin Lee   +3 more
wiley   +1 more source

Mitochondria and arrhythmias

open access: yesFree Radical Biology and Medicine, 2014
Mitochondria are essential to providing ATP, thereby satisfying the energy demand of the incessant electrical activity and contractile action of cardiac muscle. Emerging evidence indicates that mitochondrial dysfunction can adversely affect cardiac electrical functioning by impairing the intracellular ion homeostasis and membrane excitability through ...
Marcelo G. Bonini   +2 more
openaire   +4 more sources

Electrocardiographic manifestation of cardiac repolarization dispersion [PDF]

open access: yes, 2019
Alterations of repolarization heterogeneity in the heart have been established as anAlterations of repolarization heterogeneity in the heart have been established as ...
Sedova Ksenia
core  

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