Results 11 to 20 of about 260,312 (303)

Effects of Electrical Remodeling on Atrial Fibrillation in Diabetes Mellitus

open access: yesReviews in Cardiovascular Medicine, 2023
Atrial fibrillation (AF) is one of the most common arrhythmias in medical practice. Diabetes mellitus (DM) is one of the independent risk factors for atrial fibrillation.
Ling-ling Qian   +4 more
doaj   +1 more source

Fenestropathy of Voltage-Gated Sodium Channels

open access: yesFrontiers in Pharmacology, 2022
Voltage-gated sodium channels (Nav) are responsible for the initiation and propagation of action potentials in excitable cells. From pain to heartbeat, these integral membrane proteins are the ignition stations for every sensation and action in human ...
Tamer M. Gamal El-Din   +2 more
doaj   +1 more source

Differential effects of TipE and a TipE-homologous protein on modulation of gating properties of sodium channels from Drosophila melanogaster. [PDF]

open access: yesPLoS ONE, 2013
β subunits of mammalian sodium channels play important roles in modulating the expression and gating of mammalian sodium channels. However, there are no orthologs of β subunits in insects.
Lingxin Wang   +3 more
doaj   +1 more source

Sodium channels and pain [PDF]

open access: yesProceedings of the National Academy of Sciences, 1999
Although it is well established that hyperexcitability and/or increased baseline sensitivity of primary sensory neurons can lead to abnormal burst activity associated with pain, the underlying molecular mechanisms are not fully understood. Early studies demonstrated that, after injury to their axons, neurons can display changes in excitability ...
S G, Waxman   +3 more
openaire   +2 more sources

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

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

A governance of ion selectivity based on the occupancy of the “beacon” in one- and four-domain calcium and sodium channels

open access: yesChannels, 2023
One of nature’s exceptions was discovered when a Cav3 T-type channel was observed to switch phenotype from a calcium channel into a sodium channel by neutralizing an aspartate residue in the high field strength (HFS) +1 position within the ion ...
J. David Spafford
doaj   +1 more source

DDESC: Dragon database for exploration of sodium channels in human

open access: yesBMC Genomics, 2008
Background Sodium channels are heteromultimeric, integral membrane proteins that belong to a superfamily of ion channels. The mutations in genes encoding for sodium channel proteins have been linked with several inherited genetic disorders such as ...
Radovanovic Aleksandar   +7 more
doaj   +1 more source

Glutathione accelerates sodium channel inactivation in excised rat axonal membrane patches [PDF]

open access: yes, 1992
The effects of glutathione were studied on the gating behaviour of sodium channels in membrane patches of rat axons. Depolarizing pulses from –120 to –40 mV elicited sodium currents of up to 500 pA, indicating the simultaneous activation of up to 250 ...
Quasthoff, Stefan   +3 more
core   +1 more source

A model of sodium channels

open access: yesBiochimica et Biophysica Acta (BBA) - Biomembranes, 2005
We have explored the permeation and blockage of ions in sodium channels, relating the channel structure to function using electrostatic profiles and Brownian dynamics simulations. The model used resembles the KcsA potassium channel with an added external vestibule and a shorter selectivity filter.
Vora, Taira, Corry, Ben, Chung, Shin-Ho
openaire   +3 more sources

Studies of alpha-helicity and intersegmental interactions in voltage-gated Na+ channels: S2D4. [PDF]

open access: yesPLoS ONE, 2009
Much data, including crystallographic, support structural models of sodium and potassium channels consisting of S1-S4 transmembrane segments (the "voltage-sensing domain") clustered around a central pore-forming region (S5-S6 segments and the intervening
Zhongming Ma, Jun Kong, Roland G Kallen
doaj   +1 more source

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