Results 51 to 60 of about 17,410 (180)

Position- and Time-Dependent Arc Expression Links Neuronal Activity to Synaptic Plasticity During Epileptogenesis

open access: yesFrontiers in Cellular Neuroscience, 2018
In mesial temporal lobe epilepsy (mTLE) an initial precipitating injury can trigger aberrant wiring of neuronal circuits causing seizure activity. While circuit reorganization is known to be largely activity-dependent, the interactions between neuronal ...
Philipp Janz   +18 more
doaj   +1 more source

Neonatal seizures and GABAergic drugs: Scylla and Charybdis?

open access: yesEpilepsia Open, EarlyView.
Abstract Neonates have a high incidence of seizures that are frequently difficult to control with conventional first‐line anti‐seizure medications, which are gamma‐aminobutyric acid (GABA) agonists. The reasons for this clinical problem are multifold but are likely related to the unique physiology of the immature nervous system. Specifically, the early
Kerry W. Thompson   +2 more
wiley   +1 more source

Galanin receptor 1 deletion exacerbates hippocampal neuronal loss after systemic kainate administration in mice. [PDF]

open access: yesPLoS ONE, 2010
Galanin is a neuropeptide with a wide distribution in the central and peripheral nervous systems and whose physiological effects are mediated through three G protein-coupled receptor subtypes, GalR1, GalR2, and GalR3.
P Elyse Schauwecker
doaj   +1 more source

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

open access: yesBritish 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

Kainate receptors: on the dark side [PDF]

open access: yesThe Journal of Physiology, 2014
Synaptic glutamate receptors can be divided into metabotropic receptors, an eight-member GPCR family, and ionotropic glutamate receptors, a three-member family of NMDA, kainate, and AMPA tetrameric receptors. The most neglected are the five subunit (GluK1–5) kainate receptors, often either lumped with the AMPA receptors because of pharmacological ...
openaire   +2 more sources

Inhibition of carbachol-induced inositol phosphate accumulation in the embryonic retina promoted by kainate and veratridine

open access: yesBrazilian Journal of Medical and Biological Research, 1998
In the present study, we report that low concentrations of the glutamate ionotropic agonist kainate decreased the turnover of [3H]-phosphoinositides ([3H]-InsPs) induced by muscarinic receptors in the chick embryonic retina.
G. Sanches, A.L.M. Ventura
doaj   +1 more source

NMDA receptor subunit‐dependent analysis of radiprodil inhibition in neonatal male rat substantia nigra dopaminergic neurons

open access: yesBritish Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Radiprodil is a GluN2B subunit selective NMDA receptor negative allosteric modulator which is currently under clinical investigation as a possible anti‐epileptic drug for paediatric use. Our goal was to investigate the inhibition of dopaminergic neuron NMDA responses by radiprodil.
Bangyuan Liu, Alasdair J. Gibb
wiley   +1 more source

Astrocytic connexin43 phosphorylation contributes to seizure susceptibility after mild traumatic brain injury

open access: yesThe FEBS Journal, EarlyView.
Astrocytic gap junctions formed by connexin43 (Cx43) help maintain brain homeostasis. After mild traumatic brain injury (TBI), total cortical Cx43 increases and redistributes toward a soluble, non‐junctional pool with elevated hemichannel activity and increased phosphorylation at serine 368 (pCx43S368).
Carmen Muñoz‐Ballester   +11 more
wiley   +1 more source

LTD expression is independent of glutamate receptor subtype

open access: yesFrontiers in Synaptic Neuroscience, 2014
Long-term depression (LTD) is a form of synaptic plasticity that plays a major role in the activity-dependent reshaping of synaptic transmission.
Adam J Granger, Roger A Nicoll
doaj   +1 more source

Venom and toxins from Argiope lobata: electrophysiological studies

open access: yesБіологічні студії, 2020
The purpose of this study was to present experimental data on the action of venom and toxins from Argiope lobata spiders on the glutamate channel-receptor complex.
O. M. Klyuchko
doaj   +1 more source

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