Results 31 to 40 of about 1,231,807 (284)

Potassium Ion Channels in Glioma: From Basic Knowledge into Therapeutic Applications

Membranes, 2023
Ion channels, specifically those controlling the flux of potassium across cell membranes, have recently been shown to exhibit an important role in the pathophysiology of glioma, the most common primary central nervous system tumor with a poor prognosis ...
Samar Younes, Nisreen Mourad, Mohamed Salla, Mohamad Rahal, Dalal Hammoudi Halat   +4 more
doaj   +1 more source

Role of Kv1 potassium channels in regulating dopamine release and presynaptic D2 receptor function. [PDF]

PLoS ONE, 2011
Dopamine (DA) release in the CNS is critical for motor control and motivated behaviors. Dysfunction of its regulation is thought to be implicated in drug abuse and in diseases such as schizophrenia and Parkinson's.
Philippe Martel, Damiana Leo, Stephanie Fulton, Maxime Bérard, Louis-Eric Trudeau   +4 more
doaj   +1 more source

Distinct Distribution Patterns of Potassium Channel Sub-Units in Somato-Dendritic Compartments of Neurons of the Medial Superior Olive

Frontiers in Cellular Neuroscience, 2019
Coincidence detector neurons of the medial superior olive (MSO) are sensitive to interaural time differences in the range of a few tens of microseconds. The biophysical basis for this remarkable acuity is a short integration time constant of the membrane,
Alisha L. Nabel, Alisha L. Nabel, Alexander R. Callan, Alexander R. Callan, Sarah A. Gleiss, Sarah A. Gleiss, Nikolaos Kladisios, Christian Leibold, Felix Felmy, Felix Felmy   +9 more
doaj   +1 more source

What have we learned from two-pore potassium channels? Their molecular configuration and function in the human heart [PDF]

, 2012
Two-pore domain potassium channels (K2P) control excitability, stabilize the resting membrane potential below firing threshold, and accelerate repolarisation in different cells.
Szalontai, B., Ötvös, Ferenc, Benyhe, S., Boyett, M., Vágvölgyi, Csaba, Szûts, V., Papp, J.G., Dobrzynski, H.; id_orcid, Szüts, Viktória, Dézsi, László, Szalontai, Balázs, Dobrzynski, Halina, Zhang, Henggui, Benyhe, Sándor, Dézsi, L., Varró, András, Boyett, Marc, Vágvölgyi, C., Varró, A., Ötvös, F., Zhang, H., Papp, Gyula, Erdélyi, L., Erdélyi, Lajos   +23 more
core   +2 more sources

Routes for Potassium Ions across Mitochondrial Membranes: A Biophysical Point of View with Special Focus on the ATP-Sensitive K⁺ Channel

Biomolecules, 2021
Potassium ions can cross both the outer and inner mitochondrial membranes by means of multiple routes. A few potassium-permeable ion channels exist in the outer membrane, while in the inner membrane, a multitude of different potassium-selective and ...
Yevheniia Kravenska, Vanessa Checchetto, Ildiko Szabo   +2 more
doaj   +1 more source

Central cavity dehydration as a gating mechanism of potassium channels

Nature Communications, 2023
The hydrophobic gating model, in which ion permeation is inhibited by the hydrophobicity, rather than a physical occlusion of the nanopore, functions in various ion channels including potassium channels.
Ruo-Xu Gu, Bert L. de Groot
doaj   +1 more source

Tandem pore TWIK-related potassium channels and neuroprotection

Neural Regeneration Research, 2019
TWIK-related potassium channels (TREK) belong to a subfamily of the two-pore domain potassium channels family with three members, TREK1, TREK2 and TWIK-related arachidonic acid-activated potassium channels.
J Antonio Lamas, Diego Fernández-Fernández   +1 more
doaj   +1 more source

Kv7 and Kv11 channels in myometrial regulation. [PDF]

, 2013
Ion channels play a key role in defining myometrial contractility. Modulation of ion channel populations is proposed to underpin gestational changes in uterine contractility associated with the transition from uterine quiescence to active labour.
Tribe, Rachel M; id_orcid, Greenwood, IA, Rachel M. Tribe, Greenwood, Iain, Iain A. Greenwood, Tribe, RM   +5 more
core   +1 more source

Potassium Channelopathies and Gastrointestinal Ulceration

Gut and Liver, 2016
Potassium channels and transporters maintain potassium homeostasis and play significant roles in several different biological actions via potassium ion regulation.
Jaeyong Han, Seung Hun Lee, Gerhard Giebisch, Tong Wang   +3 more
doaj   +1 more source

Pulmonary vasoconstrictor action of KCNQ potassium channel blockers [PDF]

, 2006
KCNQ channels have been widely studied in the nervous system, heart and inner ear, where they have important physiological functions. Recent reports indicate that KCNQ channels may also be expressed in portal vein where they are suggested to influence ...
Joshi, Shreena, Gurney, Alison M., Balan, Prabhu   +2 more
core   +5 more sources