Results 91 to 100 of about 29,656 (290)

The Conventional Antihistamine Drug Cyproheptadine Lacks QT-interval–Prolonging Action in Halothane-Anesthetized Guinea Pigs: Comparison With Hydroxyzine

Journal of Pharmacological Sciences, 2014
.: Antihistamines are known to belong to the chemical class that may induce long QT syndrome. Among them, cyproheptadine has been shown to exert multifaceted actions on the ventricular repolarization phase; namely, shortening of the action potential ...
Kazuko Kobayashi, Naoki Omuro, Akira Takahara   +2 more
doaj   +1 more source

Dispersion of ventricular repolarization

, 1997
After a century of use, the electrocardiogram (ECG) remains a standard non-invasive technique for the clinical diagnosis of cardiac abnormalities. The ECG provides considerable information about the anatomy and the physiology of the heart.
Zaidi, Mohammed
core  

Ventricular repolarization changes during thyrotropin releasing hormone test

, 2001
We investigated the ventricular repolarization changes during thyrotropin-releasing hormone (TRH) test in 20 euthyroid healthy subjects. TSH elevation was observed in 14 subjects (age: 29 +/- 5 years). TSH increased at 20 min (baseline: 1.91 +/- 1.18 muU/
Özbay, G, Atilla Birsin, Ugur, B, Öztekin, E, Altun, GD, Altun, A, Gülay Durmus Altun, Armagan Altun, Gültaç Özbay, Akdemir, O, Osman Akdemir, Erkan Öztekin, Betül Ugur, Birsin, A   +13 more
core   +1 more source

Prospective in silico trials identify combined SK and K2P channel block as an effective strategy for atrial fibrillation cardioversion

The Journal of Physiology, EarlyView.
Abstract figure legend In silico trials were conducted in 654 virtual patients with atrial fibrillation (AF) to assess the cardioversion efficacy of three pharmacological treatments: single SK and K2P channel block and combined SK+K2P channel inhibition. Left: representative virtual AF patient with the atria inside the torso.
Albert Dasí, Lucas Arantes Berg, Hector Martinez‐Navarro, Alfonso Bueno‐Orovio, Blanca Rodriguez   +4 more
wiley   +1 more source

Determining properties of human‐induced pluripotent stem cell‐derived cardiomyocytes using spatially resolved electromechanical metrics

The Journal of Physiology, EarlyView.
Abstract figure legend In this study, we use human‐induced pluripotent stem cell‐derived cardiomyocyte (hiPSC‐CM) experiments and computational modelling to identify the mechanism of action of drug compounds. In the hiPSC‐CM experiments, optical measurements of cell collections are recorded in the baseline case and after drug exposure.
Karoline Horgmo Jæger, Verena Charwat, Kevin E. Healy, Samuel Wall, Aslak Tveito   +4 more
wiley   +1 more source

Treatment of Electrical Storm with Amiodarone in Brugada Syndrome- an Unexpected Protective Effect

, 2013
We are reporting on a 53 year old man with proven Brugada syndrome and ICD implantation for resuscitation in context of polymorphic VT. After recurrent arrhythmia he was treated with Amiodarone.
Novak, J, Lambiase, PD
core  

In silico modelling of multi‐electrode arrays for enhancing cardiac drug testing on hiPSC‐CM heterogeneous tissues

The Journal of Physiology, EarlyView.
Abstract figure legend Schematic overview of the experimental and computational framework for investigating hiPSC‐CM electrophysiology with MEA systems. The MEA‐based model integrates experimental data with phenotype‐specific ionic models and tissue‐level heterogeneity.
Sofia Botti, Rolf Krause, Luca F. Pavarino   +2 more
wiley   +1 more source

Mathematical model of the zebrafish ventricular cardiomyocyte action potential and calcium transient

The Journal of Physiology, EarlyView.
Abstract figure legend This study presents the development and validation of the first biophysically detailed computational model of the zebrafish ventricular action potential (AP). The model is based on a human cardiomyocyte framework and reparameterized using published and newly generated patch‐clamp recordings of zebrafish ionic currents.
Ludovica Cestariolo, Zachary D. Long, Arie O. Verkerk, Jose M. Ferrero, T. Alexander Quinn, Jose F. Rodriguez Matas   +5 more
wiley   +1 more source

Percutaneous pulmonary valve implantation in humans - Results in 59 consecutive patients

, 2005
Background - Right ventricular outflow tract (RVOT) reconstruction with valved conduits in infancy and childhood leads to reintervention for pulmonary regurgitation and stenosis in later life.Methods and Results - Patients with pulmonary regurgitation ...
Coats, L, Razavi, RS, Bonhoeffer, P, Boudjemline, Y, Khambadkone, S, Pellerin, D, Deanfield, J, Tsang, V, Derrick, G, Cooper, J, Taylor, A, Muthurangu, V, Hegde, SR   +12 more
core  

Mechanisms underlying local Ca2+ signalling differences between right and left atrial myocytes at normal and increased frequencies

The Journal of Physiology, EarlyView.
Abstract figure legend Left atrial myocytes have TAT‐associated faster Ca2+ release but are more prone to maladaptation at higher frequencies due to weaker peripheral SR Ca2+ uptake and smaller trigger Ca2+ current. Abstract Changes in heart rate affect Ca2+ signalling and contractility in ventricular muscle, but the effects on atrial Ca2+ signalling ...
Joon‐Chul Kim, Hieu Trong Huynh, Phuong Kim Luong, Tran Nguyet Trinh, Yixuan Wu, Eleonora Grandi, Sun‐Hee Woo   +6 more
wiley   +1 more source