Results 121 to 130 of about 41,324 (250)

Dorso‐Ventral and Night‐Day Regulation of Extracellular K+ Dynamics in Mouse Hippocampal Astrocytes

Glia, Volume 74, Issue 9, September 2026.
Hippocampal astrocytic K+ buffering varies by region and time. Ventral astrocytes show faster K+ accumulation due to reduced Kir4.1 function. Such regional divergence is modulated by circadian shifts in Kir4.1 and gap junction coupling. ABSTRACT Astrocytes regulate extracellular potassium (K+) through multiple mechanisms operating across distinct ...
Nariman Kiani, Kabeer Abubakar, Tin Luka Petanjek, Monique Esclapez, Anton Ivanov, Christophe Bernard   +5 more
wiley   +1 more source

New dual ionophore immunosensor concept modeling and experimental support [PDF]

, 2010
Literature shows that ion-selective electrodes (ISEs) can be modified to create a potentiometric immunoassay by covalent attachment of a hapten to the ionophore and use of immunocompetition to modulate transmembrane ion flux.
Haarsma, Sarah Jean
core   +1 more source

Immunomodulatory and Cytotoxic Properties of Enniatin B1 in Porcine Alveolar Macrophages

Journal of Applied Toxicology, Volume 46, Issue 9, Page 3220-3231, September 2026.
ABSTRACT This study investigates the immunomodulatory effects of Enniatin B1 (ENNB1), an emerging mycotoxin, on porcine alveolar macrophages (PAMs), a species‐specific model relevant to human innate immunity. PAMs were exposed to increasing ENNB1 concentrations (0.5–6 μM) over 6, 24, and 48 h.
Sara Frazzini, Francesca Caloni, Paola Fossati, Giancarlo Ruffo, Luciana Rossi   +4 more
wiley   +1 more source

Molecular Mechanisms of Electric Signals Generated at Corneal Wounds

The FASEB Journal, Volume 40, Issue 16, 31 August 2026.
Corneal injury triggers cell signaling (including calcium waves) leading to ion channel up‐regulation, increased ion pumping, and enhanced wound electric signals which stimulate wound healing. ABSTRACT Over 150 years ago, it was demonstrated that wounds produce electric fields and currents.
Brian Reid, Guillaume Luxardi, Min Zhao
wiley   +1 more source

Recent Advances in Fluorescent Probes for Imaging Enzyme Activity in NETosis

ChemBioChem, Volume 27, Issue 15, 14 August 2026.
Fluorescent probes enable real‐time visualization of neutrophil effector functions. This review summarizes current probe design strategies and emerging tools for imaging key enzymatic activities, with emphasis on mechanisms underlying NETosis, a lytic form of neutrophil extracellular trap (NET) formation. We discuss current limitations, challenges, and
Enebie Ramos Cáceres, Marijn J. Hollander, Kimberly M. Bonger   +2 more
wiley   +1 more source

Fragmentation of Vancoresmycin Reveals a Strong Dependence on Global Molecular Architecture for Antibacterial Activity

ChemMedChem, Volume 21, Issue 15, 14 August 2026.
Fragmentation of the natural product vancoresmycin reveals an essential role of global architecture for biological potency. Vancoresmycin is a structurally complex tetramic‐acid‐containing natural product with potent activity against Gram‐positive bacteria, yet its structure–activity relationships remain poorly defined.
Max Schönenbroicher, Florian Heppner, Maximilian Seul, Simon Morgenschweis, Aia Ali Abdelrahman, Eva Fahr, Niklas Holstein, Anna Müller, Dirk Menche   +8 more
wiley   +1 more source

Effects of Monensin, Calcareous Algae, and Essential Oils on Performance, Carcass Traits, and Methane Emissions Across Different Breeds of Feedlot-Finished Beef Cattle

Ruminants
With the growing use of crossbred cattle in Brazilian feedlots and increasing pressure to reduce antibiotic use as growth promoters, this study examines the impact of three feed additives—monensin (MON), monensin with Lithothamnium calcareum (LCM), and a
Pedro Guerreiro, Diogo F. A. Costa, Arnaldo C. Limede, Guilhermo F. S. Congio, Murillo A. P. Meschiatti, Priscila A. Bernardes, Flavio A. Portela Santos   +6 more
doaj   +1 more source

Electron transfer between complexes III and IV in S. cerevisiae mitochondrial membranes

FEBS Letters, Volume 600, Issue 15, Page 2108-2116, August 2026.
Mitochondrial oxidative phosphorylation in S. cerevisiae mitoplasts is limited by complex IV catalytic capacity, rather than two‐dimensional cytochrome c diffusion. At physiological cytochrome c : supercomplex ratios at salinity equivalent to that of 20 mm monovalent salt, activity is maximized, indicating that this low ionic strength accurately mimics
Ana Paula Lobez, Mikael Oliveberg, Peter Brzezinski   +2 more
wiley   +1 more source

Ionophore Based Bismuth Film Electrode for Lead [PDF]

, 2009
A Nafion/ionophore, 4-tert-butylcalix[4]arene-tetrakis(N,N-dimethylthioacetamide) composite coated and bismuth film modified glassy carbon electrode. (GC/NA-IONO/BiFE) was described to determine trace lead sensitively and selectively. The characteristics
Pan, Dawei, Wang, Yuane, Qin, Wei
core  

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, Volume 20, Issue 8, Page 1933-1962, August 2026.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source