Animal Toxins Can Alter the Function of Nav1.8 and Nav1.9 [PDF]
Human voltage-activated sodium (Nav) channels are adept at rapidly transmitting electrical signals across long distances in various excitable tissues. As such, they are amongst the most widely targeted ion channels by drugs and animal toxins. Of the nine
John Gilchrist, Frank Bosmans
doaj +4 more sources
A disease mutation reveals a role for Nav1.9 in acute itch [PDF]
Itch (pruritis) and pain represent two distinct sensory modalities; yet both have evolved to alert us to potentially harmful external stimuli. Compared with pain, our understanding of itch is still nascent.
Bosmans, Frank +5 more
core +6 more sources
The Nav1.9 channel regulates colonic motility in mice [PDF]
The colonic migrating motor complex (CMMC) is a major pattern of motility that is entirely generated and organized by the enteric nervous system (ENS). We have previously demonstrated that the Nav1.9 channel underlies a tetrodotoxin-resistant Na+ current
Carine eCopel +4 more
doaj +4 more sources
A Novel Gain-of-Function Nav1.9 Mutation in a Child With Episodic Pain [PDF]
Voltage-gated sodium channel Nav1.9 is a threshold channel that regulates action potential firing. Nav1.9 is preferentially expressed in myenteric neurons, and small-diameter dorsal root ganglion (DRG) and trigeminal ganglion neurons including ...
Jianying Huang +17 more
doaj +6 more sources
Familial episodic limb pain in kindreds with novel Nav1.9 mutations.
We previously performed genetic analysis in six unrelated families with infantile limb pain episodes, characterized by cold-induced deterioration and mitigation in adolescence, and reported two new mutations p.R222H/S in SCN11A responsible for these ...
Risako Kabata +27 more
doaj +4 more sources
The Nav1.9 Channel Is a Key Determinant of Cold Pain Sensation and Cold Allodynia
Cold-triggered pain is essential to avoid prolonged exposure to harmfully low temperatures. However, the molecular basis of noxious cold sensing in mammals is still not completely understood.
Stéphane Lolignier +15 more
doaj +4 more sources
Distribution of Voltage-Gated Sodium Channels and Scaffolding Proteins on Vestibular Calyx Ending Delineates the Axon Initial Segment. [PDF]
Various sodium channel isoforms and their scaffolding proteins are found in four different microdomains in vestibular calyx‐bearing afferents. These microdomains serve different purposes, analogous to the heminode, axon initial segment, and synaptic domains of other types of sensory afferents.
Lysakowski A +8 more
europepmc +2 more sources
The parabss1 Drosophila melanogaster as Model for Chronic Nociception: Insights Into Cannabidiol Analgesic Effects. [PDF]
ABSTRACT Background Chronic pain, which is often unrelated to ongoing injury, is poorly understood and difficult to treat. Genetic studies have identified voltage‐gated sodium (Nav) channels, particularly gain‐of‐function mutations such as L858F and R1150W in human NaV1.7, as involved in the development of chronic pain. Methods A chronic pain model was
Malta SM +7 more
europepmc +2 more sources
Contusive spinal cord injury causes Nav1.8 dysfunction to upregulate small sensory neuron excitability. [PDF]
Abstract figure legend Contusive SCI significantly dysregulated excitability of small DRG neurons by enhancing Nav1.8 function. SCI‐induced hyperexcitability was partially reversed by ZL0177, a small compound disrupting FHF interaction with Nav1.8 and Nav1.9.
Xiao Y, Pan Y, Liu N, Cummins TR.
europepmc +2 more sources
La capacite des organismes a ressentir et integrer les informations provenant de leur environnement est apparue tres tot dans l’evolution et a fait l’objet d’une selection naturelle constante. Cela a permis l’emergence d’un systeme sensoriel dedie a la perception des stimulus potentiellement dangereux (nocifs) de par leur nature ou leur intensite.
Stéphane Lolignier +4 more
openaire +2 more sources

