Results 31 to 40 of about 19,032 (194)

An Updated Review of Tetrodotoxin and Its Peculiarities

Marine Drugs, 2022
Tetrodotoxin (TTX) is a crystalline, weakly basic, colorless organic substance and is one of the most potent marine toxins known. Although TTX was first isolated from pufferfish, it has been found in numerous other marine organisms and a few terrestrial ...
Panagiota Katikou, Cengiz Gokbulut, Ali Rıza Kosker, Mònica Campàs, Fatih Ozogul   +4 more
doaj   +1 more source

Prostaglandin E2 Has No Effect on Two Components of Tetrodotoxin-Resistant Na+ Current in Mouse Dorsal Root Ganglion

Journal of Pharmacological Sciences, 2007
One possible mechanism underlying inflammation-induced sensitization of the primary afferent neuron is the upregulation of tetrodotoxin-resistant (TTX-R) Na+ current by inflammatory mediators such as prostaglandins.
Taixing Zheng, Jun-ichi Kakimura, Tomoya Matsutomi, Chizumi Nakamoto, Nobukuni Ogata   +4 more
doaj   +1 more source

Disrupted Vestibular Nuclei Neuron Development in a Chick Model for Congenital Vestibular Disorders. [PDF]

Dev Neurobiol
ABSTRACT Children with syndromic, congenital vestibular disorders (CVDs) form a sac‐like inner ear with missing or truncated semicircular canals and experience delayed motor development with lifelong challenges to maintain posture and balance. How the abnormal inner ear affects downstream central vestibular neural circuitry has not been investigated ...
Bogin EB, Conti R, Gallagher K, Oguz K, Popratiloff A, Peusner KD.   +5 more
europepmc   +2 more sources

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

Total Synthesis of Tetrodotoxin and 9-epiTetrodotoxin

, 2023
Tetrodotoxin and congeners are specific voltage-gated sodium channel blockers that exhibit remarkable anesthetic and an-algesic effects. Here, we present a scalable asymmetric synthesis of TTX and 9-epiTTX from the abundant chemical feed-stock furfuryl ...
Yuze, Sun, Qingcui, Wu, Xinyu, Cheng, Peihao, chen, Songlin , Bai, Yan, Wang, Xiangbing, Qi, Peng, Cao, Shuangfeng, Zhang, Jing, Wang   +9 more
core   +1 more source

Safety, Tolerability, Pharmacokinetics, and Concentration-QTc Analysis of Tetrodotoxin: A Randomized, Dose Escalation Study in Healthy Adults

Toxins, 2020
Tetrodotoxin (TTX) is a highly specific voltage-gated sodium channel (VGSC) blocker in clinical evaluation as a peripheral-acting analgesic for chronic pain. This study presents the first published results of the safety including cardiac liability of TTX
Mojgan Kavoosi, Terry E. O’Reilly, Mehran Kavoosi, Peng Chai, Caroline Engel, Walter Korz, Christopher C. Gallen, Robert M. Lester   +7 more
doaj   +1 more source

Chronic In Vivo Effects of Repeated Exposure to Low Oral Doses of Tetrodotoxin: Preliminary Evidence of Nephrotoxicity and Cardiotoxicity

Toxins, 2019
Tetrodotoxin (TTX) is one of the most potent naturally occurring neurotoxins. Initially TTX was associated with human food intoxications in Japan, but nowadays, concerns about the human health risks posed by TTX have increased in Europe after the ...
Andrea Boente-Juncal, Carmen Vale, Manuel Cifuentes, Paz Otero, Mercedes Camiña, Mercedes Rodriguez-Vieytes, Luis Miguel Botana   +6 more
doaj   +1 more source

Gustatory Detection of Tetrodotoxin and Saxitoxin, and Its Competitive Inhibition by Quinine and Strychnine in Freshwater Fishes

Marine Drugs, 2011
Fish detect extremely low levels of marine toxins tetrodotoxin (TTX) and saxitoxin (STX) via the specialized gustatory receptor(s). Physiological and pharmacological studies show that receptor(s) for TTX and STX are distinct from those which detect ...
Toshiaki J. Hara
doaj   +1 more source

Behavioral and Chemical Ecology of Marine Organisms with Respect to Tetrodotoxin

Marine Drugs, 2010
The behavioral and chemical ecology of marine organisms that possess tetrodotoxin (TTX) has not been comprehensively reviewed in one work to date. The evidence for TTX as an antipredator defense, as venom, as a sex pheromone, and as an attractant for TTX-
Becky L. Williams
doaj   +1 more source

Intense isolectin-B4 binding in rat dorsal root ganglion neurons distinguishes c-fiber nociceptors with broad action potentials and high nav1.9 expression [PDF]

, 2006
Binding to isolectin-B4 (IB4) and expression of tyrosine kinase A (trkA) (the high-affinity NGF receptor) have been used to define two different subgroups of nociceptive small dorsal root ganglion (DRG) neurons. We previously showed that only nociceptors
Fang, Xin, Dr., Fang, Xin, McMullan, Simon, Lawson, Sally N, Fang, X, Djouhri, L, Lawson, Sally N., Berry, Carol, Waxman, Stephen G., Okuse, K, McMullan, S, Djouhri, Laiche, Berry, CM, Waxman, SG, Waxman, Stephen G, Berry, C. M, Okuse, Kenji, Lawson, SN   +17 more
core   +1 more source