Results 331 to 340 of about 186,082 (377)
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Annual Review of Pharmacology and Toxicology, 2003
The NMDA receptor (NMDAR) plays a central role in the function of excitatory synapses. Recent studies have provided interesting insights into several aspects of the trafficking of this receptor in neurons. The NMDAR is not a static resident of the synapse. Rather, the number and composition of synaptic NMDARs can be modulated by several factors.
Steve Standley +4 more
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The NMDA receptor (NMDAR) plays a central role in the function of excitatory synapses. Recent studies have provided interesting insights into several aspects of the trafficking of this receptor in neurons. The NMDAR is not a static resident of the synapse. Rather, the number and composition of synaptic NMDARs can be modulated by several factors.
Steve Standley +4 more
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Down-regulation of NMDA receptor activity by NMDA
Neuroscience Letters, 1993Rat cerebellar granule cells were cultured in a medium containing 25 mM KCl. The presence of NMDA during culture caused strong down-regulation of 45Ca uptake through the NMDA receptor channel. The process affected neither the viability nor the protein content of the cells. The developmental program of NMDA receptor activity was resumed after removal of
Michael Schramm, Yael Oster
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General Pharmacology: The Vascular System, 1993
1. Beginning with electrophysiological evidence for two populations of receptors for N-methyl-D-aspartate (NMDA) which did or did not respond to the agonist quinolinic acid, evidence has grown for such subdivision. 2. Data from binding studies is consistent with differences between three NMDA receptors in the striatum, thalamus and cerebellum with ...
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1. Beginning with electrophysiological evidence for two populations of receptors for N-methyl-D-aspartate (NMDA) which did or did not respond to the agonist quinolinic acid, evidence has grown for such subdivision. 2. Data from binding studies is consistent with differences between three NMDA receptors in the striatum, thalamus and cerebellum with ...
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Fundamental & Clinical Pharmacology, 1993
Summary—The synaptic responses elicited by glutamate and aspartate in the CNS are mediated by distinct groups of receptors which include the ionotropic NMDA receptor. The NMDA receptor is activated by high‐strength synaptic input and produces relatively sustained depolarization which can lead to repetitive burst firing.
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Summary—The synaptic responses elicited by glutamate and aspartate in the CNS are mediated by distinct groups of receptors which include the ionotropic NMDA receptor. The NMDA receptor is activated by high‐strength synaptic input and produces relatively sustained depolarization which can lead to repetitive burst firing.
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1990
Brief periods of anoxia cause a marked, but apparently fully reversible interruption of integrated brain function, whose cellular mechanism is not yet fully understood. For some 50 years it has been known that the hippocampus is one of the first brain regions to be affected by anoxia (Sugar and Gerard 1937).
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Brief periods of anoxia cause a marked, but apparently fully reversible interruption of integrated brain function, whose cellular mechanism is not yet fully understood. For some 50 years it has been known that the hippocampus is one of the first brain regions to be affected by anoxia (Sugar and Gerard 1937).
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NMDA Receptors as Voltage Sensors
2017The membrane potential is an essential parameter of a living cell. However, measurements of the membrane potential using conventional techniques are associated with a number of artifacts. Cell-attached recordings of the currents through NMDA receptor channels enable noninvasive measurements of the neuronal membrane potential.
Roustem Khazipov +2 more
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Neuropharmacology, 2012
Cognitive dysfunction is core to schizophrenia, and remains poorly treated by existing therapies. A prominent hypothesis suggests that many symptoms arise from N-methyl-d-aspartate receptor (NMDAR) hypofunction. Subsequently, there has emerged a widespread use of many preclinical and clinical NMDAR antagonist models in the search for novel treatments ...
Gilmour +8 more
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Cognitive dysfunction is core to schizophrenia, and remains poorly treated by existing therapies. A prominent hypothesis suggests that many symptoms arise from N-methyl-d-aspartate receptor (NMDAR) hypofunction. Subsequently, there has emerged a widespread use of many preclinical and clinical NMDAR antagonist models in the search for novel treatments ...
Gilmour +8 more
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Chapter 13 Modulation of NMDA receptors
1998Publisher Summary This chapter describes how phosphorylation reactions might regulate the behavior of the N-methyl-D-aspartate (NMDA) channels in central neurons. The ubiquity of protein phosphorylation and dephosphorylation necessitates a recognition that while NMDA receptors may be directly phosphorylated, there are likely a variety of other ...
Beverley A. Orser +7 more
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Biochemistry (Moscow)
Astrocytic NMDA receptors (NMDARs) are heterotetramers, whose expression and properties are largely determined by their subunit composition. Astrocytic NMDARs are characterized by a low sensitivity to magnesium ions and low calcium conductivity. Their activation plays an important role in the regulation of various intracellular processes, such as gene ...
Artem M, Kosenkov +2 more
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Astrocytic NMDA receptors (NMDARs) are heterotetramers, whose expression and properties are largely determined by their subunit composition. Astrocytic NMDARs are characterized by a low sensitivity to magnesium ions and low calcium conductivity. Their activation plays an important role in the regulation of various intracellular processes, such as gene ...
Artem M, Kosenkov +2 more
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Excitotoxity and the NMDA receptor
Trends in Neurosciences, 1987Abstract The same receptors for excitatory amino acids (EAA) that mediate direct neuronal depolarization can also be responsible for neuronal injury. Prolonged stimulation of EAA receptors of either the N-methyl-d-aspartate (NMDA) or non-NMDA types eventually results in the death of most central neurons.
John W. Olney, Steven M. Rothman
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