Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"N-Methyl-D-Aspartate Receptor"”.
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Regional and temporal differential regulation of the N-methyl-D-aspartate receptor by phencyclidine during development
… phencyclidine (PCP)-induced changes in the NMDA receptor subunit composition and the relationship of these changes to the deficits in pre-pulse inhibition (PPI) caused by PCP treatment. Postnatal rats were treated with atypical or typical antipsychotics or selective dopamine or serotonin receptor …
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Effects of N-Methyl-D-Aspartate receptor blockade on cross-sensitization between D-Tyr11 neurotensin and amphetamine
Blockade of neurotensin (NT) receptors with SR-48692 prevents the development of sensitization to the locomotor activating effects of amphetamine (AMPH). In addition, repeated icv injections of NT or of its analog, D-Tyr 11 NT, sensitize animals to the locomotor activating effects of AMPH. Recent …
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Effects of perinatal phencyclidine treatment on neuronal viability, N-methyl-D-aspartate receptor regulation and schizophrenic-like behaviors
… its major actions as a noncompetitive NMDA receptor (NMDAR) antagonist. Administration to immature rats has been shown to cause neurotoxicity in a regional and treatment dependent manner and development of schizophrenic-like behaviors later in life. The purpose of this study is to determine …
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Regulation of Excitatory Neurotransmission, Synaptic Plasticity, and Learning by Cyclin-Dependent Kinase 5
… genetically enhanced mice displayed increased N-methyl-D-aspartate receptor-mediated currents and elevated levels of the NR2B N-methyl-D-aspartate receptor subunit. The enhancement in synaptic plasticity was directly attributed to the increased current through NR2B-containing receptors. NR2B …
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Targeting NMDA Receptors to Tune Corticothalamic Circuit Function
… (nRT)-VPM pathway. This work revealed novel N-methyl-D-aspartate receptor (NMDAR) nucleus-specific and frequency-dependent functional diversity in the somatosensory CT circuit. Specifically, these findings illustrate the different effects of NMDAR negative modulation in the nRT and the VPM, …
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Ethanol priming and its effects on consumption and accumbal plasticity
… divided into two subpopulations of D1-dopamine receptor (D1) or D2-dopamine receptor (D2) expressing medium spiny neurons (MSNs) that precipitate different intracellular cascades and actions upon the reward circuitry. Alterations in the expression N-methyl-D-aspartate receptor (NMDAR)-dependent …
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Discovery of heat shock protein90 inhibitors using structured-based virtual screening
… Cholinesterase inhibitors (ChEIs) and N-methyl-D-aspartate receptor (NMDAR) antagonists are current treatment options for mild to moderate AD. These agents are not used to cure the illness, but rather as symptomatic therapy. Heat Shock Protein (HSP90), is one of the molecular chaperones …
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Excitotoxicity, oxidative stress and neuroprotection in cerebellar granule neurones
… stress considered the effects of glutamate, N-methyl-D-aspartate, 3-nitropropionic acid and oxygen-glucose deprivation. Additionally, extensive study was carried out of the actions of increased glucose concentration and a range of metabolites of the essential amino acid tryptophan. It was …
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Neuroprotection from the huntingtin-repressed transcriptional coactivator PGC-1α
… of HD reduces neuronal volume loss. Synaptic N-methyl-D-aspartate receptor (NMDAR)- activity can drive the expression of PGC-1α which is neuroprotective against oxidative and excitotoxic stress in vitro whereas extrasynaptic NMDAR expression is increased in HD. Excessive NMDAR activity, …
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Role of the PI-3K/Akt and ERK pathways in phencyclidine-induced neurotoxicity in neonatal rats and the protection by lithium and BDNF
Phencyclidine is an N-methyl-D-aspartate receptor (NMDAR) open channel blocker that causes schizophrenia-like symptoms in healthy humans and exacerbates psychoses in schizophrenics. In animals, PCP administration to immature rats causes wide spread neuronal death during brain development and …
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Social isolation enhances calcium signaling and synaptic plasticity in dopamine neurons of the ventral tegmental area
… enhances long-term potentiation (LTP) of N-methyl D-aspartate receptor (NMDAR)-mediated glutamatergic transmission in the VTA. Activation of NMDARs is critical to the generation of DA neuron bursts that encode rewards and reward-predictive cues, and NMDARs are necessary for associative …
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Biological Monitoring of Oxygen and Nitric Oxide: The Development and Characterisation of Real-Time Microelectrochemical Sensors.
… the brain, the biosynthesis of NO through the N-methyl-D-aspartate receptor (NMDA) and the potential role of NO in neurovascular coupling. Chapter 2 discusses the theory behind the project and Chapter 3 describes the experimental protocols utilised throughout this research. Chapter 4 discusses …
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Requirement for AMPA receptor endocytosis and long-term depression in ocular dominance plasticity
… via a decrease in the ratio of NR2A to NR2B N-methyl-d-aspartate receptor (NMDAR) subunits. Facilitated by the decreased modification threshold, open-eye responses are strengthened via homosynaptic longterm potentiation (LTP). One established LTD mechanism is a loss of sensitivity to the …
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Synaptic Mechanisms Underlying Treatment of Depression and Bipolar Disorder
Ketamine is a N-methyl-D-aspartate receptor (NMDAR) antagonist that elicits rapid antidepressant responses in depressed patients. However, ketamine can also produce psychotomimetic effects, which limits its widespread use. The field has been exploring the mechanism of ketamine's antidepressant …
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Unmasking Impulsivity as a Glutamatergic Dysfunction Phenomenon: Presynaptic and Postsynaptic Considerations
… impulsivity) is characterized by imbalances in N-methyl-D-aspartate receptor (NMDAR) expression and synaptic targeting and stabilization. To test the hypothesis that high motor impulsivity is driven by GluR dysfunction, we administered ketamine, a NMDAR channel blocker that induces synaptic …
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Influence of Sodium Channel Activation on NMDA Receptor-Mediated Structural Plasticity.
… and synaptogenesis are mediated via N-methyl D-aspartate receptor (NMDAR)-dependent signaling mechanisms. Inasmuch as neuronal activity involves activation of voltage-gated sodium channels (VGSCs) primarily, in this study, we used a sodium channel activator, brevetoxin-2 (PbTx-2) to …
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Gut-brain axis: Central impact of gut peptides and metabolic drug on monoamine neurotransmission
… and the stable glucagon-like-peptide-1 (GLP-1) receptor agonist exendin-4 as well as putative GLP-1 congener geniposide, can affect the electrical activity of dopamine neurons in the ventral tegmental area (VTA) and of pyramidal neurons in the prefrontal cortex (PFC), using single-unit activity …
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