Results 101 to 110 of about 27,160 (211)

Trafficking and potentiation of Nav1.7 and Nav1.8 channels are mediated by IQGAP1

The Journal of Physiology, EarlyView.
Abstract figure legend IQGAP1 binds to the voltage‐gated Nav1.7 and Nav1.8 channels and TRPA1 channels in sensory neurons. Inflammatory mediators (IM), including PGE2 and TNFα, released during nerve injury and inflammation activate intracellular signalling messengers such as PKA, p38 MAPK and Cdc42 through their respective receptors.
Xuming Zhang, Pabitra Hriday Patra, Jinquan Yang   +2 more
wiley   +1 more source

Synthetic Approaches to Zetekitoxin AB, a Potent Voltage-Gated Sodium Channel Inhibitor

Marine Drugs, 2019
Voltage-gated sodium channels (NaVs) are membrane proteins that are involved in the generation and propagation of action potentials in neurons. Recently, the structure of a complex made of a tetrodotoxin-sensitive (TTX-s) NaV subtype with saxitoxin (STX),
Kanna Adachi, Hayate Ishizuka, Minami Odagi, Kazuo Nagasawa   +3 more
doaj   +1 more source

Electrophysiological properties of the dorsal motor nucleus of the vagus motoneurones controlling airway mucus secretion in rats

The Journal of Physiology, EarlyView.
Abstract figure legend Acidosis depolarises parasympathetic respiratory motoneurones in the dorsal motor nucleus of the vagus (DMV) and increases their firing frequency by reducing TWIK‐2 channel conductance. Acidosis also activates astrocytes, which further enhance neuronal excitability through NMDA receptor‐dependent glutamatergic signalling.
Daniel P. de Souza, Renato W. Martins Sá, Luiza Henrique de Souza, Fernando S. Ramalho, Davi J. A. Moraes   +4 more
wiley   +1 more source

Tetrodotoxin: Chemistry, Toxicity, Source, Distribution and Detection

Toxins, 2014
Tetrodotoxin (TTX) is a naturally occurring toxin that has been responsible for human intoxications and fatalities. Its usual route of toxicity is via the ingestion of contaminated puffer fish which are a culinary delicacy, especially in Japan.
Vaishali Bane, Mary Lehane, Madhurima Dikshit, Alan O'Riordan, Ambrose Furey   +4 more
doaj   +1 more source

Impaired Motor Function in a Zebrafish Stathmin‐2 Knockout Model

Developmental Neurobiology, Volume 86, Issue 4, October 2026.
ABSTRACT Stathmin‐2 (STMN2) is a microtubule‐associated protein that plays a role in the stability of microtubules in axons of the nervous system of animals. In this study, we generated a novel zebrafish STMN2 knockout (KO) model. STMN2 is represented by two genes in the zebrafish genome: stmn2a and stmn2b.
Tyler J. N. Gurberg, Ziyaan A. Harji, Christian J. Rampal, Joséphine Sacy‐Richer, Amy Wang, Esteban C. Rodríguez, Gary A. B. Armstrong   +6 more
wiley   +1 more source

Acute Oral Toxicity of Tetrodotoxin in Mice: Determination of Lethal Dose 50 (LD50) and No Observed Adverse Effect Level (NOAEL)

Toxins, 2017
Tetrodotoxin (TTX) is starting to appear in molluscs from the European waters and is a hazard to seafood consumers. This toxin blocks sodium channels resulting in neuromuscular paralysis and even death. As a part of the risk assessment process leading to
Paula Abal, M. Carmen Louzao, Alvaro Antelo, Mercedes Alvarez, Eva Cagide, Natalia Vilariño, Mercedes R. Vieytes, Luis M. Botana   +7 more
doaj   +1 more source

Concentrations of Tetrodotoxin (TTX) and Its Analogue 4,9-Anhydro TTX in Different Tissues of the Silver-Cheeked Pufferfish (Lagocephalus sceleratus, Gmelin, 1789) Caught in the South-Eastern Mediterranean Sea, Lebanon. [PDF]

Toxins (Basel), 2022
Hassoun AER, Ujević I, Jemaa S, Roje-Busatto R, Mahfouz C, Fakhri M, Nazlić N.   +6 more
europepmc   +1 more source

Serotonin engages divergent 5‐HT receptor pathways for cell type‐resolved modulation of prefrontal layer 5 microcircuits

British Journal of Pharmacology, Volume 183, Issue 19, Page 5832-5853, October 2026.
Serotonin differentially modulates layer 5 mPFC microcircuits through cell type‐specific pre‐ and postsynaptic receptor pathways. Presynaptic 5‐HT1BRs suppress glutamate and GABA release, whereas presynaptic and postsynaptic 5‐HT3ARs enhance fast‐spiking interneuron activity, whilst distinct pyramidal neuron subtypes exhibit divergent 5‐HT1AR‐ and 5 ...
Ramya Rama, Guanxiao Qi, Gabriele Radnikow, Danqing Yang, Dirk Feldmeyer   +4 more
wiley   +1 more source

TTX-sensitive Na⁺ currents.

, 2018
A) Steps to different voltages (indicated) produced inward currents with at least two kinetically distinct components (2Ca solution, n = 6). The fast component was through voltage-gated Na+ channels as it was blocked by application of 1 μM TTX (n = 6 ...
Alexandra V. Ulyanova (5142920), Roman E. Shirokov (5142923)   +1 more
core   +1 more source

Photovoltaic Stimulation of Mouse and Pig Retina With Pyrolytic Carbon Microelectrodes Integrated on High‐Density Silicon Solar Cell Arrays

Advanced Healthcare Materials, Volume 15, Issue 36, 25 September 2026.
In this study, we fabricate photovoltaic retinal implants with pyrolytic carbon electrodes and test their ability to stimulate mouse and pig retinas when illuminated with near‐infrared light. We find increased spiking activity in both animal models compared to spontaneous activity and TTX controls and analyze the spike amplitude, latency and frequency.
Akihiro Matsumoto, Pratik Kusumanchi, Jesper Guldsmed Madsen, Asbjørn Cortnum Jørgensen, Gisele Alves dos Reis Benatto, Sune Thorsteinsson, Peter Behrensdorff Poulsen, Keisuke Yonehara, Toke Bek, Stephan Sylvest Keller, Rasmus Schmidt Davidsen   +10 more
wiley   +1 more source