Results 61 to 70 of about 45,095 (165)

Stargazin Dephosphorylation Mediates Homeostatic Synaptic Downscaling of Excitatory Synapses

open access: yesFrontiers in Molecular Neuroscience, 2018
Synaptic scaling is a form of homeostatic plasticity that is critical for maintaining neuronal activity within a dynamic range, and which alters synaptic strength through changes in postsynaptic AMPA-type glutamate receptors.
Susana R. Louros   +3 more
doaj   +1 more source

Acute inactivation of PSD-95 destabilizes AMPA receptors at hippocampal synapses. [PDF]

open access: yesPLoS ONE, 2013
Postsynatptic density protein (PSD-95) is a 95 kDa scaffolding protein that assembles signaling complexes at synapses. Over-expression of PSD-95 in primary hippocampal neurons selectively increases synaptic localization of AMPA receptors; however, mice ...
Guillermo A Yudowski   +4 more
doaj   +1 more source

PhotonSABER: new tool shedding light on endocytosis and learning mechanisms in vivo

open access: yesCommunicative & Integrative Biology, 2019
In the central nervous system, activity-dependent endocytosis of postsynaptic AMPA-type glutamate receptors (AMPA receptors) is thought to mediate long-term depression (LTD), which is a synaptic plasticity model in various neuronal circuits.
Shinji Matsuda   +2 more
doaj   +1 more source

AMPA and Kainate Receptors Each Mediate Excitotoxicity in Oligodendroglial Cultures

open access: yesNeurobiology of Disease, 1999
Recent studies indicate that oligodendrocytes are vulnerable to excitotoxic insults mediated by glutamate receptors. The present study was carried out to characterize the type of glutamate receptors triggering cell death in optic nerve oligodendrocyte ...
Maria Victoria Sánchez-Gómez   +1 more
doaj   +1 more source

Intracellular machinery for the transport of AMPA receptors [PDF]

open access: yesBritish Journal of Pharmacology, 2008
AMPA‐type glutamate receptors are one of the most dynamic components of excitatory synapses. Their regulated addition and removal from synapses leads to long‐lasting forms of synaptic plasticity, known as long‐term potentiation (LTP) and long‐term depression (LTD).
openaire   +5 more sources

Differential modulation of NMDA and AMPA receptors by cellular prion protein and copper ions

open access: yesMolecular Brain, 2018
N-Methyl-D-aspartate receptors (NMDARs) and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptors (AMPARs) are two major types of ionotropic glutamate receptors involved in synaptic transmission.
Sun Huang   +4 more
doaj   +1 more source

Downregulation of GluA2 AMPA receptor subunits reduces the dendritic arborization of developing spinal motoneurons. [PDF]

open access: yesPLoS ONE, 2012
AMPA receptors lacking the GluA2 subunit allow a significant influx of Ca(2+) ions. Although Ca(2+)-permeable AMPA receptors are a familiar feature at early stages of development, the functional significance of these receptors during the maturation of ...
Yone J Yoon   +4 more
doaj   +1 more source

Müller Glial Cells Participate in Retinal Waves via Glutamate Transporters and AMPA Receptors

open access: yesCell Reports, 2019
Summary: Retinal waves, the spontaneous patterned neural activities propagating among developing retinal ganglion cells (RGCs), instruct the activity-dependent refinement of visuotopic maps. Although it is known that the wave is initiated successively by
Rong-wei Zhang   +3 more
doaj   +1 more source

Myosin VI Drives Clathrin-Mediated AMPA Receptor Endocytosis to Facilitate Cerebellar Long-Term Depression

open access: yesCell Reports, 2019
Summary: Myosin VI is an actin-based cytoskeletal motor implicated in various steps of membrane trafficking. Here, we investigated whether this myosin is crucial for synaptic function and plasticity in neurons.
Wolfgang Wagner   +12 more
doaj   +1 more source

Chronic renal failure induces cell death in rat hippocampal CA1 via upregulation of αCaMKII/NR2A synaptic complex and phosphorylated GluR1-containing AMPA receptor cascades

open access: yesKidney Research and Clinical Practice, 2014
Background: N-methyl-D-aspartate (NMDA) and alpha-amino-3-hydroxy-5-methylisoxazole-4-propinoic acid (AMPA) receptors bound to postsynaptic density-95 (PSD-95) and α isoform of calcium/calmodulin-dependent protein kinase II (αCaMKII) is fundamentally ...
Jong Wan Kim   +2 more
doaj   +1 more source

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