Results 121 to 130 of about 32,760 (223)

Cellular mechanisms of radiation‐induced myocyte dysfunction: effects on calcium handling, ion channel regulation and mitochondrial energetics

The Journal of Physiology, EarlyView.
Abstract figure legend Dose‐dependent effects of radiation on cardiac electrophysiology and arrhythmia susceptibility. At low radiation doses (left), increased reactive oxygen species (ROS) initiate an ROS–Ca2+ positive feedback loop involving calcium/calmodulin‐dependent protein kinase II (CaMKII) activation, enhanced L‐type Ca2+ current (ICaL ...
Hannah M. Zukowski, Colleen E. Clancy
wiley   +1 more source

Small‐conductance Ca2⁺‐activated K⁺ channels in cardiac excitation–contraction coupling: Bridging mitochondria, sarcolemma and antiarrhythmic therapy

The Journal of Physiology, EarlyView.
Abstract figure legend Mitochondrial SK channel enhancement reduces cardiac arrhythmia trigger. Spontaneous sarcoplasmic reticulum (SR) Ca2+ release via hyperactive RyR2s underlies an increased arrhythmia trigger, promoting early and delayed afterdepolarizations during stress. Hyperactive RyR2s causes rise in cytosolic [Ca2+] during diastole. Clearance
Dmitry Terentyev, Alexey V. Glukhov, Vladimir Bogdanov, Aleksei S. Averin, Roland Veress, Bum‐Rak Choi, Shanna Hamilton, Andriy E. Belevych   +7 more
wiley   +1 more source

Caenorhabditis elegans as an in vivo model system for human inherited primary arrhythmia syndromes

The Journal of Physiology, EarlyView.
Abstract figure legend Most genes involved in inherited primary arrhythmia syndromes (IPAS) are conserved in Caenorhabditis elegans, where genetic manipulation enables functional characterization of variants, identification of regulatory proteins, and in vivo drug testing.
Antoine Delinière, Thomas Boulin, Maëlle Jospin, Alexandre Janin, Gilles Millat, Philippe Chevalier, Olga Andrini   +6 more
wiley   +1 more source

Intercalated disk structure, tissue heterogeneity and ion channel distribution modulate conduction and local calcium influx

The Journal of Physiology, EarlyView.
Abstract figure legend A, three‐dimensional representation of cardiac intercalated disk, reduced to a 100‐partition, computationally efficient network representation. B, ion dynamics within intercalated disk extracellular cleft space. C, rapid pacing leads to localized conduction block in tissue with regions of perturbed intercalated disk (ID ...
Nicolae Moise, Heather L. Struckman, James W. Smyth, Gregory S. Hoeker, Steven Poelzing, Rengasayee Veeraraghavan, Seth H. Weinberg   +6 more
wiley   +1 more source

Translating cardiovascular ion channel and Ca2+ signalling mechanisms into therapeutic insights

The Journal of Physiology, EarlyView.
Abstract figure legend This white paper integrates mechanistic discoveries across ion channel biology, Ca2+ signalling and multiscale cardiovascular physiology to highlight new opportunities for accelerating research and guiding next‐generation therapies. Printed with permission from ®Anita Impagliazzo Medical Illustration. [Correction added on 2 March
Silvia Marchianò, Miguel Martín‐Aragón Baudel, Charlotte E. R. Smith, Gonzalo Hernandez Hernandez, Donald M. Bers, Patrick M. Boyle, Dobromir Dobrev, Shanna Hamilton, Osama F. Harraz, Na Li, Thomas A. Longden, William E. Louch, Madeline Nieves‐Cintron, Matthew A. Nystoriak, Walter Lee Murfee, Przemysław B. Radwański, Swapnil K. Sonkusare, Manuel F. Navedo, Eleonora Grandi   +18 more
wiley   +1 more source

Age‐ and sex‐specific modulation of human cardiac electrophysiology by doxorubicin

The Journal of Physiology, EarlyView.
Abstract figure legend DOX differentially impacts cardiac electrophysiology based on sex and age. Sex differences were primarily observed among younger hearts, where action potential duration (APD) prolongation was observed in females, but not in males. Created using BioRender. George, S. (2026) https://BioRender.com/wresf1k Abstract Acute doxorubicin (
Sharon A. George, Amber V. Mills, Erin O'Neill, Sofian N. Obaid, Igor R. Efimov, Tatiana Efimova   +5 more
wiley   +1 more source

Beat‐to‐beat variability of ventricular repolarization reveals sex‐specific instability and proarrhythmic risk

The Journal of Physiology, EarlyView.
Abstract figure legend A mechanistic framework linking sex‐dependent dynamical instability to proarrhythmic risk. Sex‐specific human ventricular models show that upstream modulators, including biological sex, hormones, drugs and heart disease, promote steeper APD restitution in female than male and enhance dynamical instability.
Daisuke Sato, Lorenzo Santini, Raffaele Coppini, Eleonora Grandi   +3 more
wiley   +1 more source

Digital genetic counseling services for cascade cardiogenetic testing

Journal of Genetic Counseling, Volume 35, Issue 3, June 2026.
Abstract Digital interventions are potentially promising to improve accessibility and efficiency of genetic counseling services. However, current literature on user perspectives toward digital tools for cascade testing is limited. Therefore, this focus‐group study aimed to gain insights into the attitude and perspectives of probands, at‐risk relatives (
Marlies N. van Lingen, Sietske A. L. van Till, Noor A. A. Giesbertz, Tessa C. Beinema, Margreet G. E. M. Ausems, Randy Klaassen, Martina C. Cornel, Lieke M. van den Heuvel, J. Peter van Tintelen   +8 more
wiley   +1 more source

Cardiovascular Health in Women—Across the Lifespan

Clinical Endocrinology, Volume 104, Issue 6, Page 539-555, June 2026.
ABSTRACT Cardiovascular disease (CVD) remains the leading cause of mortality and morbidity among women worldwide. However, CVD continues to be perceived as a predominantly male issue. CVD in women therefore remains understudied, underrecognized and undertreated.
Jaya Chandrasekhar, Jessica Yao, Simone Gong, Madhuka Wijayarathne, Monique Watts, Swati Mukherjee   +5 more
wiley   +1 more source

Alternative Lead ECG Placements

Annals of Noninvasive Electrocardiology, Volume 31, Issue 3, May 2026.
Alternative ECG lead placements can improve diagnostic yield when the standard 12‐lead ECG is suboptimal or infeasible. This review summarizes practical, scenario‐driven modifications (right‐sided, posterior, seated/prone, Lewis, Fontaine, torso‐based, and monitoring configurations) to better detect ischemia, right ventricular disease/ARVD, and ...
José Luis Morales‐Arteaga, Amin Meghdadi, Derek Wu, Abdullah Bhuiyan, Nicole Langleben, Cengiz Burak, Emily Wilson, Ashley Pellerito, David Aristizábal, Keanu Razzaghi, Juan Maria Farina, Shyla Gupta, Adrian Baranchuk   +12 more
wiley   +1 more source