Results 11 to 20 of about 45,354 (218)

Tetrodotoxin, a Potential Drug for Neuropathic and Cancer Pain Relief?

Toxins, 2021
Tetrodotoxin (TTX) is a potent neurotoxin found mainly in puffer fish and other marine and terrestrial animals. TTX blocks voltage-gated sodium channels (VGSCs) which are typically classified as TTX-sensitive or TTX-resistant channels.
Rafael González-Cano, M. Carmen Ruiz-Cantero, Miriam Santos-Caballero, Carlos Gómez-Navas, Miguel Á. Tejada, Francisco R. Nieto   +5 more
doaj   +1 more source

Tetrodotoxins in Ribbon Worms Cephalothrix cf. simula and Kulikovia alborostrata from Peter the Great Bay, Sea of Japan

Toxins, 2022
Tetrodotoxin, an extremely potent low-molecular-weight neurotoxin, and its analogues (TTXs) are widely distributed in aquatic and terrestrial ecosystems. Most investigations concerning TTXs have been conducted mainly on puffer fish, octopus, and mollusks,
Anna E. Vlasenko, Timur Yu. Magarlamov
doaj   +1 more source

6-Nitrodopamine Is the Most Potent Endogenous Positive Inotropic Agent in the Isolated Rat Heart

Life, 2023
Background: 6-nitrodopamine released from rat isolated atria exerts positive chronotropic action, being more potent than noradrenaline, adrenaline, and dopamine.
José Britto-Júnior, Lincoln Rangel Medeiros-Teixeira, Antonio Tiago Lima, Letícia Costa Dassow, Rodrigo Álvaro Brandão Lopes-Martins, Rafael Campos, Manoel Odorico Moraes, Maria Elisabete A. Moraes, Edson Antunes, Gilberto De Nucci   +9 more
doaj   +1 more source

From Poison to Promise: The Evolution of Tetrodotoxin and Its Potential as a Therapeutic

Toxins, 2021
Tetrodotoxin (TTX) is a potent neurotoxin that was first identified in pufferfish but has since been isolated from an array of taxa that host TTX-producing bacteria.
Gary M. Bucciarelli, Maren Lechner, Audrey Fontes, Lee B. Kats, Heather L. Eisthen, H. Bradley Shaffer   +5 more
doaj   +1 more source

Na(V)1.5 sodium channel window currents contribute to spontaneous firing in olfactory sensory neurons [PDF]

, 2014
Olfactory sensory neurons (OSNs) fire spontaneously as well as in response to odor; both forms of firing are physiologically important. We studied voltage-gated Na+ channels in OSNs to assess their role in spontaneous activity.
Dionne, Vincent E., Dupuis, Nicholas D., Finger, Thomas E., Frenz, Christopher T., Hansen, Anne, Levinson, Simon R., Shultz, Nicole   +6 more
core   +1 more source

Diversity and biosynthetic potential of culturable microbes associated with toxic marine animals [PDF]

, 2013
Tetrodotoxin (TTX) is a neurotoxin that has been reported from taxonomically diverse organisms across 14 different phyla. The biogenic origin of tetrodotoxin is still disputed, however, TTX biosynthesis by host-associated bacteria has been reported.
Chau, Rocky, Kalaitzis, John, Neilan, Brett, Wood, Susanna A.   +3 more
core   +4 more sources

The Structural Basis and Functional Consequences of Interactions Between Tetrodotoxin and Voltage-Gated Sodium Channels

Marine Drugs, 2006
: Tetrodotoxin (TTX) is a highly specific blocker of voltage-gated sodium channels. The dissociation constant of block varies with different channel isoforms.
C. Ruben, Shana L. Geffeney
doaj   +1 more source

In Silico Analysis of Tetrodotoxin Binding in Voltage-Gated Sodium Ion Channels from Toxin-Resistant Animal Lineages

Marine Drugs, 2022
Multiple animal species have evolved resistance to the neurotoxin tetrodotoxin (TTX) through changes in voltage-gated sodium ion channels (VGSCs). Amino acid substitutions in TTX-resistant lineages appear to be positionally convergent with changes in ...
Shana L. Geffeney, Jennie Ann Cordingley, Kenyon Mitchell, Charles T. Hanifin   +3 more
doaj   +1 more source

Tetrodotoxin Concentrations in Pleurobranchaea maculata: Temporal, Spatial and Individual Variability from New Zealand Populations

Marine Drugs, 2012
Tetrodotoxin (TTX) is a potent neurotoxin that has been identified in a range of phylogenetically unrelated marine and terrestrial organisms. Tetrodotoxin was recently detected in New Zealand in Pleurobranchaea maculata (the grey side-gilled sea slug ...
Stephen Craig Cary, Susanna A. Wood, Janet Adamson, Paul McNabb, Jarrod Walker, David I. Taylor   +5 more
doaj   +1 more source

Does Ocean Sunfish Mola spp. (Tetraodontiformes: Molidae) Represent a Risk for Tetrodotoxin Poisoning in the Portuguese Coast?

Marine Drugs, 2022
Tetrodotoxin (TTX) is a potent neurotoxin naturally occurring in terrestrial and marine organisms such as pufferfish. Due to the risk of TTX poisoning, fish of Tetraodontidae family and other puffer-related species must not be placed in the EU markets ...
Miguel Baptista, Ana Catarina Braga, Rui Rosa, Pedro Reis Costa   +3 more
doaj   +1 more source