Results 91 to 100 of about 25,457 (196)

Spatio‐Temporal Diversity of Calcium Activity in Microglia

Glia, Volume 74, Issue 3, March 2026.
Ca2+ activity mostly occurs in microglial processes and stays localized. When it spreads, it often shows a directional bias and is constrained by branch points. Activity strongly relies on P2Y12 receptors and is shaped by neuronal activity. ABSTRACT Microglia, the brain's innate immune cells, possess complex, highly motile branched processes. These act
Hiroshi Horiuchi, Dennis Lawrence Cheung, Junko Ishida, Junichi Nabekura   +3 more
wiley   +1 more source

Recent research progress in tetrodotoxin detection and quantitative analysis methods

Frontiers 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, Qirong Li, Dong Liu, Qiang Feng, Hengzong Zhou, Bohe Shi, Xinxin Zhang, Yurui Hu, Xinmiao Jiang, Xiaoming Sun, Dongxu Wang   +10 more
doaj   +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

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

Marine 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, Timur Yu. Magarlamov   +1 more
doaj   +1 more source

An evolutionarily-unique heterodimeric voltage-gated cation channel found in aphids [PDF]

, 2015
We describe the identification in aphids of a unique heterodimeric voltage-gated sodium channel which has an atypical ion selectivity filter and, unusually for insect channels, is highly insensitive to tetrodotoxin.
Amey, Joanna S., Burton, Mark J., Davies, T.G. Emyr, Duce, Ian R., Field, Linda M., Mellor, Ian R., O'Reilly, Andrias O., Puinean, Alin M., Wallace, B.A., Williamson, Martin S.   +9 more
core   +1 more source

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

The 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

Toxic mechanism and detection methods of tetrodotoxin [PDF]

MATEC Web of Conferences
Tetrodotoxin (TTX) was first isolated in the early 20th century and has significant public health implications, especially in areas where puffer fish are consumed, such as Japan.
Xu Yunzhe
doaj   +1 more source

The toxic mechanism and application of tetrodotoxin (TTX)

MATEC Web of Conferences
Tetrodotoxin (TTX) is a powerful toxin related to nerve cells that is commonly discovered at loads of puffer fish, and working out the best way of cooking, whereas keeping the flavour but getting rid of the toxicity has challenged people for decades, which removing the organ with toxin is currently most certified.
openaire   +2 more sources

Fmr1 knockout disrupts multiple intrinsic properties via reduced HCN channel activity in mediodorsal thalamocortical neurons

Experimental Physiology, Volume 111, Issue 3, Page 1340-1364, 1 March 2026.
Abstract The neurodevelopmental disorder fragile X syndrome (FXS) results from hypermethylation of the FMR1 gene, which prevents production of the FMRP protein. FMRP modulates the expression and function of a variety of proteins, including voltage‐gated ion channels, such as hyperpolarization‐activated and cyclic nucleotide‐gated (HCN) channels, which ...
Gregory J. Ordemann, Polina Lyuboslavsky, Alena Kizimenko, Audrey C. Brumback   +3 more
wiley   +1 more source

Serendipitous compound action potential oscillations reveal glycolytic astrocyte and oxidative axon interstitial K+ buffering in central white matter

Experimental Physiology, Volume 111, Issue 3, Page 1313-1329, 1 March 2026.
Abstract The principal processes that govern interstitial K+ ([K+]o) buffering in mouse optic nerve (MON), a central white matter tract, either directly consume energy (Na+–K+‐ATPase) or use transmembrane ion gradients created by energy‐dependent pumps to enable the K+ fluxes that maintain a stable [K+]o, and thus ready availability of utilisable ...
Amy J. Hopper, Angus M. Brown
wiley   +1 more source