Results 91 to 100 of about 1,076,274 (226)

Differential effects of general anesthetics on G-protein coupled inwardly rectifying and other potassium channels

open access: yes, 2001
Background: General anesthetics differentially affect various families of potassium channels, and some potassium channels are suggested to be potential targets for anesthetics and alcohols.
Harris, A, Lewohl, JM, Yamakura, T
core   +2 more sources

Mechanistic insights into sex differences in atrial electrophysiology and arrhythmia vulnerability through sex‐specific computational models

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Sex‐specific models of the human atrial myocyte in normal sinus rhythm (nSR) and chronic atrial fibrillation (cAF) revealed increased alternans susceptibility in cAF males and DADs in females, driven primarily by ICaL and ryanodine receptor remodelling.
Nathaniel T. Herrera   +6 more
wiley   +1 more source

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

open access: yesThe 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   +6 more
wiley   +1 more source

The distribution and function of the ATP-sensitive potassium channel subunit Kir6.1 in cardiac and skeletal muscle cell lines. [PDF]

open access: yes, 2007
ATP-sensitive potassium channels (KAtp) are present in the plasma membrane of a number of tissues but are also present on endomembranes such as the endoplasmic reticulum (ER) and mitochondria.
Ng, K-E.
core  

Coupling Gβγ-Dependent Activation to Channel Opening via Pore Elements in Inwardly Rectifying Potassium Channels [PDF]

open access: yes, 2001
G protein–coupled inwardly rectifying potassium channels, GIRK/Kir3.x, are gated by the Gβγ subunits of the G protein. The molecular mechanism of gating was investigated by employing a novel yeast-based random mutagenesis approach that selected for ...
Alagem, Noga   +3 more
core   +1 more source

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

open access: yesThe 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   +6 more
wiley   +1 more source

Identification of putative potassium channel homologues in pathogenic protozoa [PDF]

open access: yes, 2012
K(+) channels play a vital homeostatic role in cells and abnormal activity of these channels can dramatically alter cell function and survival, suggesting that they might be attractive drug targets in pathogenic organisms.
Prole, D L   +3 more
core   +2 more sources

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

open access: yesFrontiers 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   +7 more
doaj   +1 more source

The interplay between dynamic regulation of ion‐channel gating and trafficking in cardiac arrhythmogenesis

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Cardiac cellular electrophysiology is modulated by multiple factors, including temperature, extracellular K+, heart rate/pacing frequency, and drugs. These modulators can have distinct effects on ion‐channel gating and transcription/trafficking over time.
Stefan Meier   +3 more
wiley   +1 more source

Extracellular ionic concentration modulates arrhythmias in a simulated population of human ventricular myocytes with long QT syndrome type 3

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic illustrating the in silico study pipeline. A total of 50,000 virtual myocytes were generated, which were then filtered to 7093 myocytes that fit experimentally constrained biomarkers for physiological electrical and calcium behaviour under wild‐type conditions.
Katherine Flannery   +3 more
wiley   +1 more source

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