Results 51 to 60 of about 3,372 (135)

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

Population‐Based Study Found Low Risk of Misdiagnosing Long QT Syndrome as Breath‐Holding Spells in Swedish Children

Acta Paediatrica, Volume 115, Issue 5, Page 1116-1125, May 2026.
ABSTRACT Aim An electrocardiogram is commonly recommended in breath‐holding spell management, mainly to rule out long QT syndrome. This retrospective study investigated the risk of long QT syndrome being misdiagnosed as breath‐holding spells in a paediatric population in southern Sweden.
Sanna Hellström Schmidt, Ida Jeremiasen, Erik A. Eklund, Cornelis Jan Pronk   +3 more
wiley   +1 more source

Identification of fatty acid metabolism signature genes in patients with pulmonary arterial hypertension using WGCNA and machine learning

Journal of International Medical Research
Objective To investigate the signature genes of fatty acid metabolism and their association with immune cells in pulmonary arterial hypertension (PAH). Methods Fatty acid metabolism-related genes were obtained from the GeneCards database.
Xibang Liu, Dandan Wu, Chunmiao Bao, Zeen Huang, Weiwei Wang, Lili Sun, Lin Qiu   +6 more
doaj   +1 more source

A Novel KCNJ2 Mutation Identified in an Autistic Proband Affects the Single Channel Properties of Kir2.1

Frontiers in Cellular Neuroscience, 2018
Inwardly rectifying potassium channels (Kir) have been historically associated to several cardiovascular disorders. In particular, loss-of-function mutations in the Kir2.1 channel have been reported in cases affected by Andersen-Tawil syndrome while gain-
Anna Binda, Ilaria Rivolta, Chiara Villa, Elisa Chisci, Massimiliano Beghi, Cesare M. Cornaggia, Roberto Giovannoni, Romina Combi   +7 more
doaj   +1 more source

Andersen–Tawil Syndrome Is Associated With Impaired PIP2 Regulation of the Potassium Channel Kir2.1

Frontiers in Pharmacology, 2020
Andersen–Tawil syndrome (ATS) type-1 is associated with loss-of-function mutations in KCNJ2 gene. KCNJ2 encodes the tetrameric inward-rectifier potassium channel Kir2.1, important to the resting phase of the cardiac action potential.
Reem Handklo-Jamal, Eshcar Meisel, Eshcar Meisel, Daniel Yakubovich, Daniel Yakubovich, Leonid Vysochek, Roy Beinart, Roy Beinart, Michael Glikson, Michael Glikson, Julie R. McMullen, Nathan Dascal, Eyal Nof, Eyal Nof, Shimrit Oz, Shimrit Oz   +15 more
doaj   +1 more source

Opening closed inward rectifier potassium channel doors

British Journal of Pharmacology, Volume 183, Issue 10, Page 2197-2218, May 2026.
Inwardly rectifying potassium (KIR) channels are essential regulators of membrane potential in excitable and non‐excitable tissues. Although KIR channels exhibit a biophysical preference for potassium influx due to voltage‐dependent block of outward current by polyamines and Mg2+, under physiological conditions, they predominantly mediate K+ efflux ...
Anna Stary‐Weinzinger, Fabian Kaiser, Marcel A. G. van der Heyden, Saïd Bendahhou   +3 more
wiley   +1 more source

Transcriptome and open chromatin analysis reveals the process of myocardial cell development and key pathogenic target proteins in Long QT syndrome type 7

Journal of Translational Medicine
Objective Long QT syndrome type 7 (Andersen–Tawil syndrome, ATS), which is caused by KCNJ2 gene mutation, often leads to ventricular arrhythmia, periodic paralysis and skeletal malformations.
Peipei Chen, Junyu Long, Tianrui Hua, Zhifa Zheng, Ying Xiao, Lianfeng Chen, Kang Yu, Wei Wu, Shuyang Zhang   +8 more
doaj   +1 more source

Patient‐Derived 3D Bioprinted Cardiac Organoid Constructs Reveal Key Pathological Features of Duchenne Muscular Dystrophy

Advanced Healthcare Materials, Volume 15, Issue 16, 24 April 2026.
Patient‐derived cardiac organoids reveal key features of Duchenne muscular dystrophy cardiomyopathy, including apoptosis, oxidative stress, calcium handling defects, and mechanical remodeling. By integrating organoids into alginate–gelatin bioprinted constructs, disease phenotypes are organized into scalable 3D cardiac tissues displaying extracellular ...
Vittoria Marini, Margalida Campaner Socias, Andreas Dimopoulos, Lorenza Rinvenuto, Enrico Pozzo, Diana Stalkopf, Angelo Serafini, Sara Morri, Ashley Wang, Rita La Rovere, Yoke Chin Chai, Sveva Bollini, Geert Bultynck, H. Llewelyn Roderick, Ioannis Papantoniou, Maurilio Sampaolesi   +15 more
wiley   +1 more source

Cardiac Manifestations of KCNK17 Mutations and/or Polymorphisms: A Systematic Review

Health Science Reports, Volume 9, Issue 3, March 2026.
ABSTRACT Background and Aims The KCNK17 gene encodes k2p17.1 channels (TASK‐4 or TALK‐2) with dominant expressions in the atria and the Purkinje fibers. Emerging studies have suggested possible associations between KCNK17 variants and cardiovascular as well as cerebrovascular diseases. This review aimed to systematically evaluate the evidence on KCNK17
Amir Askarinejad, Mahshid Malakootian, Dorsa Shekouh, Amirreza Sabahizadeh, Majid Haghjoo   +4 more
wiley   +1 more source

Functional expression of inwardly rectifying and ATP‐sensitive potassium channels in human pulmonary artery smooth muscle and endothelial cells

The Journal of Physiology, Volume 604, Issue 5, Page 1820-1839, 1 March 2026.
Abstract figure legend Inwardly rectifying (Kir2) and ATP‐sensitive (KATP) potassium channels are functionally expressed in human pulmonary artery endothelial and smooth muscle cells. The schematic illustrates how Kir2‐ and KATP‐mediated K+ efflux contributes to VM regulation and pulmonary vascular tone.
Bianca Barreira, Daniel Morales‐Cano, Laura Moreno, Beatriz de Olaiz, Rui Adão, Angel Cogolludo, Francisco Perez‐Vizcaino, Maria Sancho   +7 more
wiley   +1 more source