Results 21 to 30 of about 22,128 (213)
Extrasynaptic NMDA Receptor in Excitotoxicity [PDF]
The Neuroscientist, 2014 It is generally accepted that proper activation of N-methyl-d-aspartate receptors (NMDARs) promotes neuronal survival and supports neuroplasticity, and excessive NMDAR activation leads to pathological outcomes and neurodegeneration. As NMDARs are found at both synaptic and extrasynaptic sites, there is significant interest in determining how NMDARs at
Xianju, Zhou +5 more
openaire +2 more sources
BMC Neuroscience, 2008 Background Extrasynaptic NMDA receptors couple to a CREB shut-off pathway and cause cell death, whereas synaptic NMDA receptors and nuclear calcium signaling promote CREB-mediated transcription and neuronal survival.
Bading Hilmar +2 more
doaj +1 more source
Removal of AMPA receptors (AMPARs) from synapses is preceded by transient endocytosis of extrasynaptic AMPARs [PDF]
, 2004 AMPA receptors (AMPARs) are dynamically regulated at synapses, but the time course and location of their exocytosis and endocytosis are not known. Therefore, we have used ecliptic pHluorin-tagged glutamate receptor 2 to visualize changes in AMPAR surface
Ashby, MC +5 more
core +2 more sources
Extrasynaptic neuron-glia communication [PDF]
Communicative & Integrative Biology, 2011 Chemical synaptic transmission between neurons is believed to take place at specialized sites of cell contact, comprising presynaptic terminals and postsynaptic membranes. Neurotransmitter release has been shown to occur also extrasynaptically, mainly targeting glial cells. In a recent study, we investigated the mechanism of extrasynaptic glutamate and
Christian, Lohr +2 more
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Frontiers in Molecular Neuroscience, 2008 Glycine and GABA mediate inhibitory neurotransmission in the spinal cord and central nervous system. The general concept of neurotransmission is now challenged by the contribution of both phasic activation of postsynaptic glycine and GABAA receptors ...
Emilie Muller +3 more
doaj +1 more source
Frontiers in Cellular Neuroscience, 2015 Despite numerous advances, treatment-resistant seizures remain an important problem. Loss of neuronal inhibition is present in a variety of epilepsy models and is suggested as a mechanism for increased excitability, leading to the proposal that grafting ...
Manoj K. Jaiswal +9 more
doaj +1 more source
Imaging extrasynaptic glutamate dynamics in the brain [PDF]
Proceedings of the National Academy of Sciences, 2009 Glutamate is the major neurotransmitter in the brain, mediating point-to-point transmission across the synaptic cleft in excitatory synapses. Using a glutamate imaging method with fluorescent indicators, we show that synaptic activity generates extrasynaptic glutamate dynamics in the vicinity of active synapses.
Yohei, Okubo +8 more
openaire +2 more sources
Tonic inhibition of accumbal spiny neurons by extrasynaptic 4 GABAA receptors modulates the actions of psychostimulants [PDF]
, 2014 Within the nucleus accumbens (NAc), synaptic GABAA receptors (GABAARs) mediate phasic inhibition of medium spiny neurons (MSNs) and influence behavioral responses to cocaine.
Belelli, D +8 more
core +1 more source
Osmotic Edema Rapidly Increases Neuronal Excitability Through Activation of NMDA Receptor-Dependent Slow Inward Currents in Juvenile and Adult Hippocampus. [PDF]
, 2015 Cellular edema (cell swelling) is a principal component of numerous brain disorders including ischemia, cortical spreading depression, hyponatremia, and epilepsy.
Binder, Devin K +5 more
core +3 more sources
GluN2A NMDA Receptor Enhancement Improves Brain Oscillations, Synchrony, and Cognitive Functions in Dravet Syndrome and Alzheimer's Disease Models. [PDF]
, 2020 NMDA receptors (NMDARs) play subunit-specific roles in synaptic function and are implicated in neuropsychiatric and neurodegenerative disorders. However, the in vivo consequences and therapeutic potential of pharmacologically enhancing NMDAR function via
Chan, Connie +25 more
core +1 more source