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Страница 1 от 345 полученные результаты
Glycine uptake regulates hippocampal network activity via glycine receptor-mediated tonic inhibition.
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Functional glycine receptors (GlyRs) are enriched in the hippocampus, but their role in hippocampal function remains unclear. Since the concentration of ambient glycine is determined by the presence of powerful glycine transporter (GlyT), we blocked the reuptake of glycine in hippocampal slices to
Glycine and glycine receptor signaling in hippocampal neurons: diversity, function and regulation.
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Glycine is a primary inhibitory neurotransmitter in the spinal cord and brainstem. It acts at glycine receptor (GlyR)-chloride channels, as well as a co-agonist of NMDA receptors (NMDARs). In the hippocampus, the study of GlyRs has largely been under-appreciated due to the apparent absence of
Glycine transporter-1 controls nonsynaptic inhibitory actions of glycine receptors in the neonatal rat hippocampus.
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Although functional glycinergic synapses have not been identified in the hippocampus, neurons in this area express Cl(-) permeable extrasynaptic glycine receptors (GlyRs). In experiments on CA3 pyramidal neurons on postnatal day 0-6 rat hippocampal slices, we detected robust GlyR activity as a tonic
Unmasking GluN1/GluN3A excitatory glycine NMDA receptors.
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GluN3A and GluN3B are glycine-binding subunits belonging to the NMDA receptor (NMDAR) family that can assemble with the GluN1 subunit to form unconventional receptors activated by glycine alone. Functional characterization of GluN1/GluN3 NMDARs has been difficult. Here, we uncover two modalities
Electrophysiological evidence of increased glycine receptor-mediated phasic and tonic inhibition by blockade of glycine transporters in spinal superficial dorsal horn neurons of adult mice.
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To understand the synaptic and/or extrasynaptic mechanisms underlying pain relief by blockade of glycine transporter subtypes GlyT1 and GlyT2, whole-cell recordings were made from dorsal horn neurons in spinal slices from adult mice, and the effects of NFPS and ALX-1393, selective GlyT1 and GlyT2
Glycine activates myenteric neurones in adult guinea-pigs.
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1. We studied the effects of glycine on myenteric neurones and muscle activity in the colon and stomach of adult guinea-pigs. 2. Intracellular recordings revealed that myenteric neurones responded to local microejection of glycine (1 mM) with a fast, transient membrane potential depolarisation (57 %
N-(benzyloxycarbonyl)glycine esters and amides as new anticonvulsants.
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Glycine is a small neutral amino acid exhibiting weak anticonvulsant activities in vivo. Recently, studies have demonstrated that N-(benzyloxycarbonyl)glycine (1) antagonized seizures superior to glycine in addition to activity in the maximal electroshock (MES) test, a convulsive model where glycine
Alpha2 subunit specificity of cyclothiazide inhibition on glycine receptors.
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In the mammalian cortex, alpha2 subunit-containing glycine receptors (GlyRs) mediate tonic inhibition, but the precise functional role of this type of GlyRs is difficult to establish because of the lack of subtype-selective antagonist. In this study, we found that cyclothiazide (CTZ), an
Anesthetic and ethanol effects on spontaneously opening glycine receptor channels.
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Strychnine-sensitive glycine receptors mediate inhibitory neurotransmission occurring in the brain stem and spinal cord. Alcohols, volatile anesthetics and inhaled drugs of abuse are positive allosteric modulators of glycine receptor function, normally enhancing function only in the presence of
Polychlorocycloalkane insecticide action on GABA-and glycine-dependent chloride flux.
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The inhibitory neurotransmitters gamma-aminobutyric acid (GABA) and glycine directly cause an increase in conductance to Cl- by binding to ligand-operated ion channel receptors at the postsynaptic membranes, so that opening of Cl- channels usually leads to a net hyperpolarization. The GABA(A)
Glycine receptor α3 and α2 subunits mediate tonic and exogenous agonist-induced currents in forebrain.
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Neuronal inhibition can occur via synaptic mechanisms or through tonic activation of extrasynaptic receptors. In spinal cord, glycine mediates synaptic inhibition through the activation of heteromeric glycine receptors (GlyRs) composed primarily of α1 and β subunits. Inhibitory GlyRs are also found
GABA transporters mediate glycine release from cerebellum nerve endings: roles of Ca(2+)channels, mitochondrial Na(+)/Ca(2+) exchangers, vesicular GABA/glycine transporters and anion channels.
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GABA transporters accumulate GABA to inactivate or reutilize it. Transporter-mediated GABA release can also occur. Recent findings indicate that GABA transporters can perform additional functions. We investigated how activation of GABA transporters can mediate release of glycine. Nerve endings
Action and localization of glycine and taurine in the cat retina.
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The effects on retinal ganglion cells of iontophoretically applied glycine, taurine and strychnine were studied in the optically intact eye of the cat. Glycine and taurine suppressed the light-evoked discharge of all on-centre and off-centre brisk ganglion cells, regardless of the visual stimulus
Glycine receptor-mediated fast synaptic inhibition in the brainstem respiratory system.
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The involvement of glycinergic neurotransmission in the central regulation of respiration was investigated by administration of specific receptor agonists and antagonists into the 4th cerebral ventricle of the rabbit. Central respiratory activity was assessed by cycle-triggered averaging of phrenic
4-bromopropofol decreases action potential generation in spinal neurons by inducing a glycine receptor-mediated tonic conductance.
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OBJECTIVE
Impaired function of spinal strychnine-sensitive glycine receptors gives rise to chronic pain states and movement disorders. Therefore, increased activity of glycine receptors should help to treat such disorders. Although compounds targeting glycine receptors with a high selectivity are
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