Results 21 to 30 of about 45,095 (165)

Presynaptic AMPA Receptors in Health and Disease [PDF]

open access: yesCells, 2021
AMPA receptors (AMPARs) are ionotropic glutamate receptors that play a major role in excitatory neurotransmission. AMPARs are located at both presynaptic and postsynaptic plasma membranes. A huge number of studies investigated the role of postsynaptic AMPARs in the normal and abnormal functioning of the mammalian central nervous system (CNS).
Zanetti L.   +4 more
openaire   +4 more sources

AMPA Receptor-Mediated Ca2+ Transients in Mouse Olfactory Ensheathing Cells

open access: yesFrontiers in Cellular Neuroscience, 2019
Ca2+ signaling in glial cells is primarily triggered by metabotropic pathways and the subsequent Ca2+ release from internal Ca2+ stores. However, there is upcoming evidence that various ion channels might also initiate Ca2+ rises in glial cells by Ca2 ...
Antonia Beiersdorfer, Christian Lohr
doaj   +1 more source

Uncorking AMPA receptors [PDF]

open access: yesJournal of General Physiology, 2017
New JGP study explains how auxiliary proteins relieve polyamine block of AMPARs.
openaire   +2 more sources

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
Lonnie P. Wollmuth, Martin Loynaz Prieto
openaire   +3 more sources

Resensitizing AMPA receptors [PDF]

open access: yesJournal of General Physiology, 2019
JGP study suggests how the regulatory protein γ8 reopens AMPA receptor channels in the continued presence of glutamate.
openaire   +2 more sources

p97 regulates GluA1 homomeric AMPA receptor formation and plasma membrane expression

open access: yesNature Communications, 2019
AMPA receptors mediate excitatory synaptic transmission and are involved in synaptic plasticity. The authors show that p97 interacts with the GluA1 subunit of AMPA receptors, promotes the formation of GluA1 homomeric AMPA receptors, and regulates AMPA ...
Yuan Ge   +10 more
doaj   +1 more source

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

AMPA Receptor Function in Hypothalamic Synapses [PDF]

open access: yesFrontiers in Synaptic Neuroscience, 2022
AMPA receptors (AMPARs) are critical for mediating glutamatergic synaptic transmission and plasticity, thus playing a major role in the molecular machinery underlying cellular substrates of memory and learning. Their expression pattern, transport and regulatory mechanisms have been extensively studied in the hippocampus, but their functional properties
Royo, María   +3 more
openaire   +5 more sources

Transmembrane AMPA receptor regulatory proteins and AMPA receptor function in the cerebellum

open access: yesNeuroscience, 2009
Heterogeneity among AMPA receptor (AMPAR) subtypes is thought to be one of the key postsynaptic factors giving rise to diversity in excitatory synaptic signaling in the CNS. Recently, compelling evidence has emerged that ancillary AMPAR subunits-the so-called transmembrane AMPA receptor regulatory proteins (TARPs)-also play a vital role in influencing ...
Ian D. Coombs, Stuart G. Cull-Candy
openaire   +3 more sources

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

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