Results 71 to 80 of about 28,419 (196)

The Microbial Community of Tetrodotoxin-Bearing and Non-Tetrodotoxin-Bearing Ribbon Worms (Nemertea) from the Sea of Japan

open access: yesMarine Drugs, 2020
A potent marine toxin, tetrodotoxin (TTX), found in a great variety of marine and some terrestrial species, leaves intriguing questions about its origin and distribution in marine ecosystems. TTX-producing bacteria were found in the cultivable microflora
Daria I. Melnikova   +1 more
doaj   +1 more source

Identification of TREK channels in mouse intracardiac ganglion neurons

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Role of TWIK‐related K+ (TREK) channels in intracardiac ganglion neurons. CD‐1 mice were used to establish primary cultures of intracardiac neurons for immunochemical characterization and patch‐clamp electrophysiology. Intracardiac neurons express functional TREK channels, which modulate neuronal excitability by regulating ...
Ana Campos‐Rios   +9 more
wiley   +1 more source

Dynamic memory in rodent C‐fibres and its impact on spinal nociceptive processing

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Nociceptive C‐fibres display activity‐dependent slowing (ADS) whereby successive action potentials are conducted progressively slower thus regulating the temporal relay of pain signals. This study shows that the ADS induced by short stimulus trains (which mimic stimulus evoked firing, shown in orange) is modified by prior ...
Atanaska N. Velichkova, Carole Torsney
wiley   +1 more source

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

open access: yesThe 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   +2 more
wiley   +1 more source

Tetrodotoxin and Its Analogues in Cephalothrix cf. simula (Nemertea: Palaeonemertea) from the Sea of Japan (Peter the Great Gulf): Intrabody Distribution and Secretions

open access: yesToxins, 2020
Some nemertean species from the genus Cephalothrix accumulate tetrodotoxin (TTX) in extremely high concentrations. The current study is the first to provide high-performance liquid chromatography–tandem mass spectrometry (HPLC–MS/MS) data on tetrodotoxin
Anna E. Vlasenko, Timur Yu. Magarlamov
doaj   +1 more source

Recent research progress in tetrodotoxin detection and quantitative analysis methods

open access: yesFrontiers in Chemistry
Tetrodotoxin (TTX) is a highly potent and widely distributed ion-channel marine neurotoxin; it has no specific antidote and poses a great risk to human health.
Chao Lin   +10 more
doaj   +1 more source

Electrophysiological properties of mesodiencephalic junction neurons projecting to the inferior olive

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Highlights of the main electrophysiological differences between MDJ neurons that project to the IO and those that do not. IO‐projecting neurons fire rebound spikes and are spontaneously active at higher frequencies. The bottom panel shows the anatomical connectivity of the MDJ with both excitatory and newly discovered inhibitory ...
Stijn Voerman   +5 more
wiley   +1 more source

Tetrodotoxin has no effect on pilocarpine-induced fluid secretion in perfused submandibular glands of rats.

open access: yes, 2019
(a) Profile of secretion of salivary fluid in response to pilocarpine treatment in the presence or absence of tetrodotoxin (TTX) in submandibular glands of rats. Submandibular glands were stimulated with 10 μM pilocarpine in the absence of TTX.
Takanori Narita (25602)   +3 more
core   +1 more source

Developmental mechanisms contributing to non‐linear firing dynamics in spinal motoneurons of the postnatal mouse

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend. In this study, we describe how persistent inward currents (PICs) and nonlinear firing dynamics mature in slow‐type (green) and fast‐type (purple) motoneurons (MNs) during the second and third postnatal weeks of development in mice.
Simon A. Sharples, Gareth B. Miles
wiley   +1 more source

Disordered but effective: short linear motifs as gene therapy targets for hyperexcitability disorders

open access: yesThe Journal of Clinical Investigation
Multiple approaches have targeted voltage-gated sodium (Nav) channels for analgesia. In this issue of the JCI, Shin et al. identified a peptide aptamer, NaViPA1, carrying a short polybasic motif flanked by serine residues in a structurally disordered ...
Sulayman D. Dib-Hajj, Stephen G. Waxman
doaj   +1 more source

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