Results 21 to 30 of about 57,998 (256)

Historical Perspective of the Characterization of Conotoxins Targeting Voltage-Gated Sodium Channels

Marine Drugs, 2023
Marine toxins have potent actions on diverse sodium ion channels regulated by transmembrane voltage (voltage-gated ion channels) or by neurotransmitters (nicotinic acetylcholine receptor channels).
James R. Groome
doaj   +1 more source

Druggability of Voltage-Gated Sodium Channels—Exploring Old and New Drug Receptor Sites

Frontiers in Pharmacology, 2022
Voltage-gated ion channels are important drug targets because they play crucial physiological roles in both excitable and non-excitable cells. About 15% of clinical drugs used for treating human diseases target ion channels.
Goragot Wisedchaisri, Tamer M. Gamal El-Din   +1 more
doaj   +1 more source

Voltage-Gated Sodium Channels in Neocortical Pyramidal Neurons Display Cole-Moore Activation Kinetics

Frontiers in Cellular Neuroscience, 2018
Exploring the properties of action potentials is a crucial step toward a better understanding of the computational properties of single neurons and neural networks. The voltage-gated sodium channel is a key player in action potential generation.
Mara Almog, Tal Barkai, Angelika Lampert, Alon Korngreen, Alon Korngreen   +4 more
doaj   +1 more source

Inhibition by Pregnenolone Sulphate, a Metabolite of the Neurosteroid Pregnenolone, of Voltage-Gated Sodium Channels Expressed in Xenopus Oocytes

Journal of Pharmacological Sciences, 2012
Neurosteroids are known as allosteric modulators of the ligand-gated ion channel superfamily. Voltage-gated sodium channels (Nav) play an important role in mediating excitotoxic damages. Here we report the effects of neurosteroids on the function of Nav,
Takafumi Horishita, Susumu Ueno, Nobuyuki Yanagihara, Yuka Sudo, Yasuhito Uezono, Dan Okura, Takeyoshi Sata   +6 more
doaj   +1 more source

Activity of Palythoa caribaeorum Venom on Voltage-Gated Ion Channels in Mammalian Superior Cervical Ganglion Neurons

Toxins, 2016
The Zoanthids are an order of cnidarians whose venoms and toxins have been poorly studied. Palythoa caribaeorum is a zoanthid commonly found around the Mexican coastline. In this study, we tested the activity of P.
Fernando Lazcano-Pérez, Héctor Castro, Isabel Arenas, David E. García, Ricardo González-Muñoz, Roberto Arreguín-Espinosa   +5 more
doaj   +1 more source

Structure-guided unlocking of NaX reveals a non-selective tetrodotoxin-sensitive cation channel

Nature Communications, 2022
NaX is an atypical member of the voltage-gated sodium channel family that may contribute to Na+ homeostasis. Here, the authors describe the structural and functional attributes of the human NaX channel to reveal new insights into its physiology.
Cameron L. Noland, Han Chow Chua, Marc Kschonsak, Stephanie Andrea Heusser, Nina Braun, Timothy Chang, Christine Tam, Jia Tang, Christopher P. Arthur, Claudio Ciferri, Stephan Alexander Pless, Jian Payandeh   +11 more
doaj   +1 more source

Nomenclature of Voltage-Gated Sodium Channels [PDF]

Neuron, 2000
Voltage-gated Ca2+ channels mediate calcium influx in response to membrane depolarization and regulate intracellular processes such as contraction, secretion, neurotransmission, and gene expression. They are members of a gene superfamily of transmembrane ion channel proteins that includes voltage-gated K+ and Na+ channels.
Goldin, Alan L., Barchi, Robert L., Caldwell, John H., Hofmann, Franz, Howe, James R., Hunter, John C., Kallen, Roland G., Mandel, Gail, Meisler, Miriam H., Netter, Yoheved Berwald, Noda, Masahara, Tamkun, Michael M., Waxman, Steven G., Wood, John N., Catterall, William A.   +14 more
openaire   +2 more sources

Cellular hyper-excitability caused by mutations that alter the activation process of voltage-gated sodium channels

Frontiers in Physiology, 2015
Voltage-gated sodium channels (Nav) are widely expressed as macro-molecular complexes in both excitable and non-excitable tissues. In excitable tissues, the upstroke of the action potential is the result of the passage of a large and rapid influx of ...
Mohamed-Yassine eAMAROUCH, Hugues eAbriel   +1 more
doaj   +1 more source

Ion channel clustering at the axon initial segment and node of Ranvier evolved sequentially in early chordates. [PDF]

PLoS Genetics, 2008
In many mammalian neurons, dense clusters of ion channels at the axonal initial segment and nodes of Ranvier underlie action potential generation and rapid conduction.
Alexis S Hill, Atsuo Nishino, Koichi Nakajo, Giuxin Zhang, Jaime R Fineman, Michael E Selzer, Yasushi Okamura, Edward C Cooper   +7 more
doaj   +1 more source

Functional correlates of clinical phenotype and severity in recurrent SCN2A variants

Communications Biology, 2022
A comprehensive biophysical analysis of disease-associated mutations in the voltage-gated sodium channel gene, SCN2A, suggests that dynamic action potential clamp may be a better predictor than voltage clamp of how these mutations alter neuronal ...
Géza Berecki, Katherine B. Howell, Jacqueline Heighway, Nelson Olivier, Jill Rodda, Isabella Overmars, Danique R. M. Vlaskamp, Tyson L. Ware, Simone Ardern-Holmes, Gaetan Lesca, Michael Alber, Pierangelo Veggiotti, Ingrid E. Scheffer, Samuel F. Berkovic, Markus Wolff, Steven Petrou   +15 more
doaj   +1 more source