Results 61 to 70 of about 6,791 (202)

Analysis of Hemichannels and Gap Junctions: Application and Extension of the Passive Transmembrane Ion Transport Model

open access: yesFrontiers in Cellular Neuroscience, 2021
Electrical synaptic transmission is an essential form of interneuronal communication which is mediated by gap junctions that permit ion flow. Three gene families (connexins, innexins, and pannexins) have evolved to form gap junctional channels.
Qiqian Wang, Shenquan Liu
doaj   +1 more source

Inhibition of Connexin43 hemichannels impairs spatial short-term memory without affecting spatial working memory [PDF]

open access: yes, 2016
Astrocytes are active players in higher brain function as they can release gliotransmitters, which are essential for synaptic plasticity. Various mechanisms have been proposed for gliotransmission, including vesicular mechanisms as well as non-vesicular ...
Albertini, Giulia   +5 more
core   +2 more sources

Long‐lasting remodeling of astrocytes in an Scna1+/− mouse model of Dravet syndrome

open access: yesEpilepsia, EarlyView.
Abstract Objective Dravet syndrome (DS) is a prototypical developmental and epileptic encephalopathy caused by mutations in the SCN1A gene, leading to loss of function of the voltage‐gated sodium channel Naᵥ1.1. The latter causes early onset drug‐resistant seizures and enduring cognitive and behavioral deficits.
Athénaïs Genin   +10 more
wiley   +1 more source

Connexin hemichannels: novel mediators of toxicity [PDF]

open access: yesArchives of Toxicology, 2014
Tissue homeostasis is driven by a myriad of extracellular, intracellular and intercellular signaling networks. Direct communication between neighboring cells is typically controlled by gap junctions (Decrock et al. 2009; Nielsen et al. 2012; Vinken et al. 2011).
openaire   +3 more sources

Structure of the connexin-43 gap junction channel in a putative closed state

open access: yeseLife, 2023
Gap junction channels (GJCs) mediate intercellular communication by connecting two neighbouring cells and enabling direct exchange of ions and small molecules.
Chao Qi   +11 more
doaj   +1 more source

GLIAL HEMICHANNELS: A NEW ROUTE FOR CHEMICAL COMMUNICATION IN BRAIN [PDF]

open access: yes, 2008
The extracellular neurochemistry determines normal brain function and the faith of neurons after insults such as stroke. This thesis concerns the effect of extracellular events related to intense neuronal stimulation and stroke, i.e.
Stridh, Malin
core   +1 more source

Molecular Mechanism of the IRF1/NFE2L1‐DT/ALKBH5/Cx43 Axis in Radiation‐Induced Injury in Vascular Endothelial Cells Through Pyroptosis

open access: yesThe Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Radiotherapy effectively eradicates tumor cells but can also trigger pyroptotic damage in vascular endothelial cells. This study investigates the role of interferon regulatory factor 1 (IRF1) in radiation‐induced endothelial injury, aiming to provide mechanistic insights for optimizing radiotherapy.
Chen Li   +4 more
wiley   +1 more source

Connexin Gap Junctions and Hemichannels in Modulating Lens Redox Homeostasis and Oxidative Stress in Cataractogenesis

open access: yesAntioxidants, 2021
The lens is continuously exposed to oxidative stress insults, such as ultraviolet radiation and other oxidative factors, during the aging process. The lens possesses powerful oxidative stress defense systems to maintain its redox homeostasis, one of ...
Yumeng Quan   +4 more
doaj   +1 more source

Cx43 and mechanotransduction in bone [PDF]

open access: yes, 2015
Bone adaptation to changes in mechanical stimuli occurs by adjusting bone formation and resorption by osteoblasts and osteoclasts, to maintain optimal bone mass.
Donahue, Henry J.   +2 more
core   +1 more source

Small Cell Lung Cancer Establishes a Metabolic Autocrine Mechanism Through Active Extracellular ATP Transport

open access: yesCancer Science, EarlyView.
Small cell lung cancer (SCLC) actively exports ATP through PANX1 channels, triggering P2RX7‐mediated autocrine signaling and promoting tumor proliferation. Inhibition of PANX1 or P2RX7 disrupts this loop and suppresses tumor growth. ABSTRACT Small cell lung cancer (SCLC) is an aggressive malignancy with a 5‐year survival rate of less than 7%.
Takeshi Tsuruda   +2 more
wiley   +1 more source

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