Results 81 to 90 of about 11,247 (202)

Isolation and Structural Determination of the First 8-epi-type Tetrodotoxin Analogs from the Newt, Cynops ensicauda popei, and Comparison of Tetrodotoxin Analogs Profiles of This Newt and the Puffer Fish, Fugu poecilonotus

Marine Drugs, 2012
Identification of new tetrodotoxin (TTX) analogs from TTX-possessing animals might provide insight into its biosynthesis and metabolism. In this study, four new analogs, 8-epi-5,6,11-trideoxyTTX, 4,9-anhydro-8-epi-5,6,11-trideoxyTTX, 1-hydroxy-8-epi-5,6 ...
Mari Yotsu-Yamashita, Yuta Kudo, Takeshi Yasumoto, Keiichi Konoki, Yuko Cho   +4 more
doaj   +1 more source

Peripheral targets for neuropathic pain

British Journal of Pharmacology, EarlyView.
Neuropathic pain represents a significant clinical challenge, with still limited pharmacological approaches to symptomatic relief. This review focuses on molecular targets implicated in neuropathic pain, particularly those involved in peripheral mechanisms. Using the IUPHAR/BPS database of biological targets, their occurrence together with ‘neuropathic
Amirhossein Afsharipour, Cosmin I. Ciotu, Felix J. Resch, Michael J. M. Fischer   +3 more
wiley   +1 more source

Highly Toxic Ribbon Worm Cephalothrix simula Containing Tetrodotoxin in Hiroshima Bay, Hiroshima Prefecture, Japan

Toxins, 2013
In 1998, during a toxicological surveillance of various marine fouling organisms in Hiroshima Bay, Japan, specimens of the ribbon worm, Cephalothrix simula (Nemertea: Palaeonemertea) were found.
Manabu Asakawa, Hiroshi Kajihara, Katsutoshi Ito   +2 more
doaj   +1 more source

Inhibition of late sodium current prevents pathological hyperactivation of calcium/calmodulin‐dependent protein kinase IIδ in a murine model of acute doxorubicin‐related cardiotoxicity

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Doxorubicin (DOX) is a highly effective anthracycline, whose clinical application for cancer is limited by cardiotoxicity. The mechanisms underlying doxorubicin‐induced toxic cardiomyopathy (DICM) involve electrophysiological remodelling with intracellular Na+ overload because of increased late INa and hyperactivation of
Anna‐Lena Feder, Anna‐Maria Pfützenreuter, Lea Maria Funke, Maria Johanna Baier, Daniel Tarnowski, Laura Stengel, Lars Siegfried Maier, Can Martin Sag   +7 more
wiley   +1 more source

Ciguatoxins Evoke Potent CGRP Release by Activation of Voltage-Gated Sodium Channel Subtypes NaV1.9, NaV1.7 and NaV1.1

Marine Drugs, 2017
Ciguatoxins (CTXs) are marine toxins that cause ciguatera fish poisoning, a debilitating disease dominated by sensory and neurological disturbances that include cold allodynia and various painful symptoms as well as long-lasting pruritus.
Filip Touska, Simon Sattler, Philipp Malsch, Richard J. Lewis, Peter W. Reeh, Katharina Zimmermann   +5 more
doaj   +1 more source

Potentiation effects of the positive allosteric modulator PTC‐174 on NMDA receptors in neonatal male rat substantia nigra dopaminergic neurons

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Positive allosteric modulators bind to secondary binding sites on the receptor and alter receptor conformation and activation, changing agonist potency and efficacy. PTC‐174 is a novel NMDA receptor positive allosteric modulator that particularly enhances activity of receptors containing GluN2C or GluN2D subunits.
Bangyuan Liu, Alasdair J. Gibb
wiley   +1 more source

Formal total synthesis of (±)-tetrodotoxin

, 2016
This dissertation details a formal total synthesis of (±)-tetrodotoxin, a potent sodium channel blocker, based on a transformation developed in these laboratories: the bimolecular oxidative amidation of phenols.
Xu, Sanjia
core   +1 more source

Selective modulation of NaV channel gating counteracts aberrant hyperexcitability and rescues motor function and survival in a model of spinal muscular atrophy

British Journal of Pharmacology, EarlyView.
Background and Purpose Spinal muscular atrophy (SMA) is a motor neuron disease caused by SMN1 gene loss, leading to reduced survival motor neuron (SMN) protein and progressive motor neuron degeneration. Although SMN‐restoring therapies improve outcomes, residual disease burden and non‐curative efficacy underscore the need for complementary treatments ...
Fernanda C. Cardoso, Jessica A. I. Muller, Yougang Zhang, Jean Giacomotto   +3 more
wiley   +1 more source

Partial Characterization of a Tetrodotoxin-Binding Component from Nerve Membrane [PDF]

, 1972
Tetrodotoxin from Japanese puffer fish has been labeled with tritium and purified from the crude mixture obtained. The interaction between the purified [3H]tetrodotoxin and membrane suspensions from the olfactory nerve of long-nosed garfish has been ...
Raftery, M. A., Benzer, Theodore I.
core  

Colon-specific contractile responses to tetrodotoxin in the isolated mouse gastrointestinal tract

, 2011
Articlejournal ...
9300, 9301, Kondo, T., 9304, 9305, 9302, 9303, Okuno, Y., Teraoka, H., Uchida, E., Saeki, A., Kitazawa, T.   +11 more
core   +1 more source