Results 41 to 50 of about 1,714,984 (295)

Putative Structural and Functional Coupling of the Mitochondrial BKCa Channel to the Respiratory Chain. [PDF]

PLoS ONE, 2013
Potassium channels have been found in the inner mitochondrial membranes of various cells. These channels regulate the mitochondrial membrane potential, the matrix volume and respiration. The activation of these channels is cytoprotective.
Piotr Bednarczyk, Mariusz R Wieckowski, Malgorzata Broszkiewicz, Krzysztof Skowronek, Detlef Siemen, Adam Szewczyk   +5 more
doaj   +1 more source

Reduction of Kcnt1 is therapeutic in mouse models of SCN1A and SCN8A epilepsy

Frontiers in Neuroscience, 2023
Developmental and epileptic encephalopathies (DEEs) are severe seizure disorders with inadequate treatment options. Gain- or loss-of-function mutations of neuronal ion channel genes, including potassium channels and voltage-gated sodium channels, are ...
Sophie F. Hill, Sophie F. Hill, Paymaan Jafar-Nejad, Frank Rigo, Miriam H. Meisler, Miriam H. Meisler, Miriam H. Meisler   +6 more
doaj   +1 more source

Phα1β interaction with the Kv11.1 potassium channel in HEK293 cells transfected with the human ERG channel [PDF]

Journal of Venomous Animals and Toxins including Tropical Diseases
Background: This study examines the impact of Phα1β, a spider peptide derived from the venom of Phoneutria nigriventer, on the Kv11.1 potassium channel in HEK293 cells transfected with the human ERG potassium channel.
João B. Calixto, Adara Aurea dos Santos, Juliano Ferreira, Alessandra Hubner Souza, Célio José de Castro Junior, Marcus Vinicius Gomez   +5 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

Mechanism of resveratrol-induced relaxation in the human gallbladder

BMC Complementary and Alternative Medicine, 2017
Background Resveratrol is a polyphenolic compound extracted from plants and is also a constituent of red wine. Resveratrol produces relaxation of vascular smooth muscle and may prevent cardiovascular diseases.
Ching-Chung Tsai, Ming-Che Lee, Shu-Leei Tey, Ching-Wen Liu, Shih-Che Huang   +4 more
doaj   +1 more source

High conductance anion channel in Schwann cell vesicles from rat spinal roots [PDF]

, 1992
Potassium uptake, possibly together with chloride, is one of the presumed functions of Schwann cells in the peripheral nervous system. However, the presence of chloride channels has not been demonstrated in adult Schwann cells.
Quasthoff, Stefan, Stefan Quasthoff, Peter Grafe, Strupp, Michael, Grafe, Peter, Michael Strupp   +5 more
core   +1 more source

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

FEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux, Christian Lévêque, Fodil Azzaz, Marion Sangiardi, Sarosh R Irani, Michael Seagar, Jacques Fantini, Oussama El Far   +7 more
wiley   +1 more source

Nitric Oxide and Small and Intermediate Calcium-Activated Potassium Channels Mediate the Vasodilation Induced by Apigenin in the Resistance Vessels of Hypertensive Rats

Molecules
Background: Apigenin (4′,5,7-trihydroxyflavone), a flavonoid with potential cardiovascular benefits, has unclear mechanisms of action. This study investigates its effects on vascular function in Spontaneously Hypertensive Rats (SHRs). Methods: Mesenteric
Lislaine Maria Klider, Maria Luiza Fidelis da Silva, Gustavo Ratti da Silva, João Ricardo Cray da Costa, Marcia Alessandra Arantes Marques, Emerson Luiz Botelho Lourenço, Francislaine Aparecida dos Reis Lívero, Jane Manfron, Arquimedes Gasparotto Junior   +8 more
doaj   +1 more source

Unraveling the epigenetic code in cancer cell–tumor microenvironment crosstalk

Molecular Oncology, EarlyView.
Epigenetic regulation is a key driver of cancer development and progression. Diverse epigenetic alterations in cancer cells and components of the tumor microenvironment (TME) orchestrate their communication through multiple mechanisms. We discuss how the epigenetic code coordinates bidirectional cancer cell–TME crosstalk to promote cancer progression ...
Ji Hoon Park, Mi‐Young Kim
wiley   +1 more source

Structures of the T cell potassium channel Kv1.3 with immunoglobulin modulators

Nature Communications, 2022
The Kv1.3 potassium channel is expressed abundantly on activated T cells and mediates the cellular immune responses. Here, the authors report structures of the Kv1.3 potassium channel with and without immunoglobulin modulators, shedding light on the ...
Purushotham Selvakumar, Ana I. Fernández-Mariño, Nandish Khanra, Changhao He, Alice J. Paquette, Bing Wang, Ruiqi Huang, Vaughn V. Smider, William J. Rice, Kenton J. Swartz, Joel R. Meyerson   +10 more
doaj   +1 more source