Results 81 to 90 of about 11,215 (198)

The ultrarapid delayed rectifier potassium current has important functional role in the repolarization reserve of canine and human ventricular muscle

The Journal of Physiology, EarlyView.
Abstract figure legend The ultrarapid delayed rectifier potassium current (IKur) has long been considered an atrial‐specific current with no functional role in the ventricles, despite evidence of its expression in ventricular myocytes. In the present study we challenged this prevailing concept and investigated the potential role of IKur in ventricular ...
Alaa Amin E. Abdelmagid, Aiman Saleh A. Mohammed, Gábor Mohácsi, Benjámin Paskuj, Gergő Bitay, Jakub Tomek, Sahil Dalal, Tamás Árpádffy‐Lovas, Vivien Demeter‐Haludka, István Koncz, Muhammad Naveed, László Virág, Norbert Nagy, András Varró, István Baczkó, Norbert Jost, Zsófia Kohajda, Leila Topal   +17 more
wiley   +1 more source

Inwardly rectifying potassium channels [PDF]

Acta Crystallographica Section A Foundations of Crystallography, 2005
O. Sleator, S. Prince
openaire   +1 more source

Maturation of spinal motor control through developmental changes in ion currents

The Journal of Physiology, EarlyView.
Abstract figure legend Ion channels of spinal neurons have been shown to change during development in a wide range of species. These changes occur at specific stages of development. An important developmental process is the maturation of motor control by which the body acquires new movements or refines movements already present.
Stephanie F. Gaudreau, Tuan V. Bui
wiley   +1 more source

Cloning, functional expression, and pharmacological characterization of inwardly rectifying potassium channels (Kir) from Apis mellifera

Scientific Reports
Potassium channels belong to the super family of ion channels and play a fundamental role in cell excitability. Kir channels are potassium channels with an inwardly rectifying property.
Fabien Sourisseau, Chaimaa Chahine, Valérie Pouliot, Thierry Cens, Pierre Charnet, Mohamed Chahine   +5 more
doaj   +1 more source

Voltage‐gated potassium channels mediate thyroid hormone control of skeletal muscle excitability

The Journal of Physiology, EarlyView.
Abstract figure legend Thyroid hormone (TH)‐dependent remodelling of potassium (K+) channel networks regulates skeletal muscle (SkM) excitability. Triiodothyronine (T3), locally generated from thyroxine (T4) by type 2 deiodinase (D2), binds thyroid hormone receptors (TRα/β) and modulates transcription via thyroid response elements (TREs).
Annarita Nappi, Caterina Miro, Annunziata Gaetana Cicatiello, Ilaria Piccialli, Serena Sagliocchi, Lucia Acampora, Federica Restolfer, Rosa Sirica, Melania Murolo, Emery Di Cicco, Daniela Terracciano, Anna Pannaccione, Monica Dentice   +12 more
wiley   +1 more source

High-yield production and characterization of functional Kir2.1 ion channel using E. coli cell-free protein synthesis system

Synthetic and Systems Biotechnology
A family of inwardly-rectifying potassium (Kir) channels plays a key role in the regulation of cellular potassium (K+) balance, affecting muscle, nerve and immune function.
Tianqi Zhou, Zitong Zhao, Huizi Zhang, Yunyang Song, Yifeng Yin, Fanghui Wu, Yanli Liu, Dan Xu   +7 more
doaj   +1 more source

hERG1 channels and potential therapeutics for long QT syndrome

The Journal of Physiology, EarlyView.
Abstract figure legend Prolonged QT results from hERG1 channel dysfunction. (A) Physiological anterograde trafficking of hERG1 channels to the plasma membrane, leading to a normal electrocardiogram. (B) Prolonged QT results from the presence of fewer hERG1 channels on the plasma membrane due to decreased anterograde trafficking or reduced function due ...
Elizabeth H. Schneider, Kelly A. Aromolaran, Michael C. Sanguinetti, Ademuyiwa S. Aromolaran   +3 more
wiley   +1 more source

Dorso‐Ventral and Night‐Day Regulation of Extracellular K+ Dynamics in Mouse Hippocampal Astrocytes

Glia, Volume 74, Issue 9, September 2026.
Hippocampal astrocytic K+ buffering varies by region and time. Ventral astrocytes show faster K+ accumulation due to reduced Kir4.1 function. Such regional divergence is modulated by circadian shifts in Kir4.1 and gap junction coupling. ABSTRACT Astrocytes regulate extracellular potassium (K+) through multiple mechanisms operating across distinct ...
Nariman Kiani, Kabeer Abubakar, Tin Luka Petanjek, Monique Esclapez, Anton Ivanov, Christophe Bernard   +5 more
wiley   +1 more source

Peripheral κ opioid receptor in pain and inflammation: From molecular signalling and gene expression to drug discovery

British Journal of Pharmacology, Volume 183, Issue 17, Page 5157-5189, September 2026.
The κ opioid receptor (κ receptor, KOR) is a G protein‐coupled receptor with well established roles in analgesia and immune modulation. Although historically studied primarily in the central nervous system (CNS), growing evidence indicates that κ signalling in peripheral tissues plays an important role in regulating pain, inflammation and immune ...
Rumsha Khan, Elena C. A. Becker, Boglarka B. Bata, Christian W. Gruber   +3 more
wiley   +1 more source

Pharmacological rescue of trafficking-impaired ATP-sensitive potassium channels

Frontiers in Physiology, 2013
ATP-sensitive potassium (KATP) channels link cell metabolism to membrane excitability and are involved in a wide range of physiological processes including hormone secretion, control of vascular tone, and protection of cardiac and neuronal cells against ...
Gregory M. Martin, Pei-Chun eChen, Prasanna eDevaraneni, Show-Ling eShyng   +3 more
doaj   +1 more source