Results 21 to 30 of about 55,538 (273)

GluA2-lacking AMPA receptors in hippocampal CA1 cell synapses: evidence from gene-targeted mice

open access: yesFrontiers in Molecular Neuroscience, 2012
The GluA2 subunit in heteromeric AMPA receptor channels restricts Ca2+ permeability and block by polyamines, rendering linear the current-voltage relationship of these glutamate-gated cation channels.
Andrei eRozov   +2 more
doaj   +1 more source

Age-dependent remodelling of ionotropic signalling in cortical astroglia [PDF]

open access: yes, 2011
Cortical astrocytes express fast ionotropic receptors for glutamate and ATP, although their role in neurone-glia communication remains controversial.
Lalo, Ulyana   +11 more
core   +1 more source

Gating Modes in AMPA Receptors [PDF]

open access: yesThe Journal of Neuroscience, 2010
AMPA receptors are ligand-gated ion channels that show multiple conductance levels, indicating that gating of individual AMPA subunits is to some extent independent of the other subunits. To study AMPAR subunit interactions during activation gating, we recorded from single channels in the absence of channel block and desensitization and at negative and
Martin Loynaz, Prieto   +1 more
openaire   +2 more sources

AMPA receptor trafficking and learning [PDF]

open access: yesEuropean Journal of Neuroscience, 2010
AbstractIn the last few years it has become clear that AMPA‐type glutamate neurotransmitter receptors are rapidly transported into and out of synapses to strengthen or weaken their function. The remarkable dynamics of AMPA receptor (AMPAR) synaptic localization provides a compelling mechanism for understanding the cellular basis of learning and memory,
J, Keifer, Z, Zheng
openaire   +2 more sources

AMPA receptors control fear extinction through an Arc-dependent mechanism [PDF]

open access: yes, 2017
Activity-regulated cytoskeleton-associated protein (Arc) supports fear memory through synaptic plasticity events requiring actin cytoskeleton rearrangements.
Trent, Simon
core   +1 more source

P2X7 receptors exert a permissive effect on the activation of presynaptic AMPA receptors in rat trigeminal caudal nucleus glutamatergic nerve terminals

open access: yesThe Journal of Headache and Pain, 2020
Background Purine receptors play roles in peripheral and central sensitization and are associated with migraine headache. We investigated the possibility that ATP plays a permissive role in the activation of AMPA receptors thus inducing Glu release from ...
Diego Currò   +3 more
doaj   +1 more source

Pharmacological characterisation of S 47445, a novel positive allosteric modulator of AMPA receptors.

open access: yesPLoS ONE, 2017
S 47445 is a novel positive allosteric modulator of alpha-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid (AMPA) receptors (AMPA-PAM). S 47445 enhanced glutamate's action at AMPA receptors on human and rat receptors and was inactive at NMDA and ...
Sylvie Bretin   +18 more
doaj   +1 more source

Ionotropic Glutamate Receptors in Epilepsy: A Review Focusing on AMPA and NMDA Receptors

open access: yesBiomolecules, 2020
It is widely accepted that glutamate-mediated neuronal hyperexcitation plays a causative role in eliciting seizures. Among glutamate receptors, the roles of N-methyl-D-aspartate (NMDA) and α-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA ...
Takahisa Hanada
doaj   +1 more source

Modulatory mechanisms of TARP γ8-selective AMPA receptor therapeutics

open access: yesNature Communications, 2023
AMPA receptors associated with TARP subunits enable the development of selective AMPA receptor drugs. Here, the authors provide cryo-EM structures of receptors bound to three TARP-γ8 selective drugs, and reveal bifunctionality of one ligand.
Danyang Zhang   +7 more
doaj   +1 more source

Distinct pharmacological and functional properties of NMDA receptors in mouse cortical astrocytes [PDF]

open access: yes, 2011
Background and purpose Astrocytes of the mouse neocortex express functional NMDA receptors which are not blocked by Mg2+ions. However, study of the pharmacological profile of glial NMDARs and their subunit composition is far from complete ...
Lalo, Ulyana   +5 more
core   +1 more source

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