Results 81 to 90 of about 17,722 (214)

Mechanisms of hERG Potassium Channel Enhancers [PDF]

Biophysical Journal, 2011
Mutations in the human Ether-a-go-go related gene (hERG) potassium channel and hERG channel blockers offer tools for studying structural, biophysical and functional properties of the channel. However, the current understanding of how the hERG channel opens and closes is still incomplete. Here, we used alternative chemical tools, hERG channel enhancers,
Lin, Chia-Wei, Cao, Xueying, Penland, Robert, Urban, Laszlo, Erdemli, Gul   +4 more
openaire   +1 more source

14‐3‐3 proteins: Regulators of cardiac excitation–contraction coupling and stress responses

The Journal of Physiology, EarlyView.
Abstract figure legend 14‐3‐3 protein interactions in cardiac regulation. Schematic representation of 14‐3‐3 binding partners in excitation–contraction coupling, transcriptional regulation/development and stress response pathways. Asterisks indicate targets where the exact 14‐3‐3 binding site is unknown.
Heather C. Spooner, Rose E. Dixon
wiley   +1 more source

Ion channels: structural basis for function and disease. [PDF]

, 1996
Ion channels are ubiquitous proteins that mediate nervous and muscular function, rapid transmembrane signaling events, and ionic and fluid balance. The cloning of genes encoding ion channels has led to major strides in understanding the mechanistic basis
Goldstein, SA
core   +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

Long-Chain Acylcarnitines Regulate the hERG Channel

PLoS ONE, 2012
In some pathological conditions carnitine concentration is high while in others it is low. In both cases,cardiac arrhythmias can occur and lead to sudden cardiac death. It has been proposed that in ischaemia, acylcarnitine (acyl-CAR), but not carnitine, is involved in arrhythmias through modulation of ionic currents. We studied the effects of acyl-CARs
Ferro, Fabio, Ouillé, Aude, Tran, Truong-An, Fontanaud, Pierre, Bois, Patrick, Babuty, Dominique, Labarthe, François, Le Guennec, Jean-Yves   +7 more
openaire   +5 more sources

An open‐label, single‐arm, dose‐escalating concentration–QT study to investigate the cardiac effects and safety of paroxetine in healthy adults

British Journal of Clinical Pharmacology, Volume 92, Issue 5, Page 1385-1396, May 2026.
Abstract Aims Paroxetine is a selective serotonin reuptake inhibitor (SSRI), approved for treatment of major depressive disorder and anxiety disorders. Some SSRIs are known to prolong the QT interval; however, clinical evidence to establish a lack of association between paroxetine and corrected QT interval (QTc) prolongation is limited. Therefore, this
Sven C. van Dijkman, Mathieu Félices, Bhaskar Pandurangavittal, Sanman Ghorpade, Caroline Easterbrook, Marcin Zabielski, Oscar Della Pasqua   +6 more
wiley   +1 more source

Ion Conduction through the hERG Potassium Channel

PLoS ONE, 2012
The inward rectifier voltage-gated potassium channel hERG is of primary importance for the regulation of the membrane potential of cardiomyocytes. Unlike most voltage-gated K(+)-channels, hERG shows a low elementary conductance at physiological voltage and potassium concentration.
Ceccarini L., MASETTI, MATTEO, CAVALLI, ANDREA, RECANATINI, MAURIZIO   +3 more
openaire   +5 more sources

Isocitrate Dehydrogenase Mutations in Cancer: From Bench to Bedside Applications

MedComm, Volume 7, Issue 5, May 2026.
Mutant isocitrate dehydrogenase affects multiple cancer types. Alterations in IDH1 and IDH2 result in abnormal enzyme activity, leading to the overproduction of D‐2‐hydroxyglutarate (D‐2HG). This metabolite disrupts cellular metabolism and epigenetic regulation, driving cancer initiation, progression, and metastasis.
Yuhan Fang, Xiaoqing Wang, Kai Luo, Tikam Chand Dakal, He Bai, Caiming Xu, Guixin Zhang   +6 more
wiley   +1 more source

Characterization of the novel mutant A78T-HERG from a long QT syndrome type 2 patient: Instability of the mutant protein and stabilization by heat shock factor 1

Journal of Arrhythmia, 2016
Background: The human ether-a-go-go-related gene (HERG) encodes the α-subunit of rapidly activating delayed-rectifier potassium channels. Mutations in this gene cause long QT syndrome type 2 (LQT2).
Takehito Kondo, Ichiro Hisatome, Shouichi Yoshimura, Endang Mahati, Tomomi Notsu, Peili Li, Kazuhiko Iitsuka, Masaru Kato, Kazuyoshi Ogura, Junichiro Miake, Takeshi Aiba, Wataru Shimizu, Yasutaka Kurata, Shinji Sakata, Naoe Nakasone, Haruaki Ninomiya, Akira Nakai, Katsumi Higaki, Yasushi Kawata, Yasuaki Shirayoshi, Akio Yoshida, Kazuhiro Yamamoto   +21 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