Showing 1-30 of 60 resultados for "D1064"
Shotaro Hobo et al.
Neuroscience letters, 502(1), 52-55 (2011-08-02)
Valproate produces analgesia in animals and humans, however, its mechanisms of action are yet unknown. The present study examined effects of repeated administration of valproate on behavioral hypersensitivity and expression of glutamate transporter-1 (GLT-1) and glutamate-aspartate transporter (GLAST) in the...
Gabriella Nyitrai et al.
Brain research, 1309, 172-178 (2009-11-17)
A wide range of data support a role for ambient glutamate (Glu) in epilepsy, although temporal patterns associated with the cellular uptake of Glu have not been addressed in detail. We report on the effects of Glu uptake inhibitors on...
Yu-Ting Huang et al.
PloS one, 12(11), e0187276-e0187276 (2017-11-02)
Synchronized bursts (SBs) with complex structures are common in neuronal cultures. Although the phenomenon of SBs has been discovered for a long time, its origin is still unclear. Here, we investigate the properties of these SBs in cultures grown on...
Wanpeng Cui et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 34(49), 16273-16285 (2014-12-05)
The lateral habenula (LHb) regulates the activity of monoaminergic neurons in the brainstem. This area has recently attracted a surge of interest in psychiatry because studies have reported the pathological activation of the habenula in patients with major depression and...
Longze Sha et al.
Theranostics, 10(18), 8415-8429 (2020-07-30)
Rationale: Dysfunction or reduced levels of EAAT2 have been documented in epilepsy. We previously demonstrated the antiepileptic effects of Hsp90 inhibitor 17AAG in temporal lobe epilepsy by preventing EAAT2 degradation. Because of the potential toxicities of 17AAG, this study aimed...
Toshie Furuya et al.
Current eye research, 37(3), 170-178 (2012-02-18)
To investigate the role of glutamate transporters (GLTs)in retinal glial cells that were treated with N-methyl-D-aspartate (NMDA), in retinal ganglion cell (RGC) survival. Primary cultures of retinal glial cells or RGCs from 3-day-old Sprague-Dawley rats were employed in the present...
Catherine S John et al.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 37(11), 2467-2475 (2012-06-29)
Major depression is associated with both dysregulated glutamatergic neurotransmission and fewer astrocytes in limbic areas including the prefrontal cortex (PFC). These deficits may be functionally related. Notably, astrocytes regulate glutamate levels by removing glutamate from the synapse via the glutamate...
Junpei Takaki et al.
Journal of neuroinflammation, 9, 275-275 (2012-12-25)
In the central nervous system, astrocytic L-glutamate (L-Glu) transporters maintain extracellular L-Glu below neurotoxic levels, but their function is impaired with neuroinflammation. Microglia become activated with inflammation; however, the correlation between activated microglia and the impairment of L-Glu transporters is...
Júlia Gasull-Camós et al.
Neuropharmacology, 139, 41-51 (2018-06-26)
Novel fast-acting antidepressant strategies, such as ketamine and deep brain stimulation, enhance glutamatergic neurotransmission in medial prefrontal cortex (mPFC) regions via AMPA receptor (AMPA-R) activation. We recently reported that the regionally-selective blockade of the glial glutamate transporter-1 (GLT-1) by dihydrokainic...
Seungwoo Kang et al.
Neuropharmacology, 129, 47-56 (2017-11-13)
Alcoholism and psychiatric disorders like depression and anxiety are often comorbid. Although the mechanisms underlying this comorbidity are unclear, emerging evidence suggests that maladaptation of the glial glutamate transporter GLT-1 may play a role. Findings from animal and human studies...
Liangcan Xiao et al.
International journal of molecular medicine, 30(5), 1126-1132 (2012-08-17)
Hypoxia and/or ischemia are implicated in neurodegenerative disorders. In these diseases, hypoxia/ischemia may induce oxidative stress, including production of reactive oxygen species (ROS), which result in a decrease in glutamate transporter expression. Hydrogen sulfide (H2S), as the third gasotransmitter, has...
Rujin Tian et al.
Journal of neuropathology and experimental neurology, 69(4), 335-345 (2010-05-08)
Alexander disease (AxD) is a leukodystrophy caused by heterozygous mutations in the gene for glial fibrillary acidic protein, an intermediate filament protein expressed by astrocytes. The mutation causes prominent protein aggregates inside astrocytes; there is also loss of myelin and...
Alexander John Poplawsky et al.
NeuroImage, 225, 117457-117457 (2020-10-19)
Functional MRI responses are localized to the synaptic sites of evoked inhibitory neurons, but it is unknown whether, or by what mechanisms, these neurons initiate functional hyperemia. Here, the neuronal origins of these hemodynamic responses were investigated by fMRI or...
Marco Bacigaluppi et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 36(41), 10529-10544 (2016-10-14)
Ischemic stroke is the leading cause of disability, but effective therapies are currently widely lacking. Recovery from stroke is very much dependent on the possibility to develop treatments able to both halt the neurodegenerative process as well as to foster...
Takaaki Aratake et al.
Experimental neurology, 336, 113538-113538 (2020-12-01)
Accumulating evidence indicates time-of-day variations in ischemic neuronal injury. Under ischemic conditions, Zn2+ is massively released from hippocampal glutamatergic neurons, and intracellular Zn2+ accumulation results in neuron death. Notably, excitatory amino acid carrier 1 (EAAC1), known as a cysteine transporter...
Sujan C Das et al.
Neuropharmacology, 97, 67-74 (2015-05-24)
Alteration of glutamatergic-neurotransmission is a hallmark of alcohol dependence. We have previously reported that chronic ethanol-drinking downregulated glutamate transporter 1 (GLT-1) in nucleus accumbens (NAc) in male P rats in a manner that was reversed by ceftriaxone treatment. However, the...
Juan D Pita-Almenar et al.
Learning & memory (Cold Spring Harbor, N.Y.), 19(12), 615-626 (2012-11-21)
Na⁺-dependent high-affinity glutamate transporters have important roles in the maintenance of basal levels of glutamate and clearance of glutamate during synaptic transmission. Interestingly, several studies have shown that basal glutamate transport displays plasticity. Glutamate uptake increases in hippocampal slices during...
Lei-lei Chen et al.
Acta pharmacologica Sinica, 33(3), 385-392 (2012-01-24)
To investigate the effects of rapamycin on glutamate uptake in cultured rat astrocytes expressing N-terminal 552 residues of mutant huntingtin (Htt-552). Primary astrocyte cultures were prepared from the cortex of postnatal rat pups. An astrocytes model of Huntington's disease was...
Maki Koike-Tani et al.
Biophysical journal, 118(10), 2366-2384 (2020-04-16)
Intrinsic optical signal (IOS) imaging has been widely used to map the patterns of brain activity in vivo in a label-free manner. Traditional IOS refers to changes in light transmission, absorption, reflectance, and scattering of the brain tissue. Here, we use...
Laith Alexander et al.
Neuron, 101(2), 307-320 (2018-12-12)
Anhedonia is a core symptom of depression, but the underlying neurobiological mechanisms are unknown. Correlative neuroimaging studies implicate dysfunction within ventromedial prefrontal cortex, but the causal roles of specific subregions remain unidentified. We addressed these issues by combining intracerebral microinfusions with...
Jiri Vrba et al.
Toxicology letters, 203(2), 135-141 (2011-03-23)
The isoquinoline alkaloids protopine and allocryptopine are present in phytopreparations from medicinal plants, such as Fumaria officinalis. Since nothing is known about effects of the alkaloids on the expression of xenobiotic-metabolizing enzymes, we examined whether protopine or allocryptopine affect the...
Maria Kulp et al.
Analytical and bioanalytical chemistry, 405(10), 3391-3397 (2013-01-30)
In this study, the synergistic biological action of five celandine alkaloids in normal and cancer cells was investigated by capillary electrophoresis with light-emitting diode-induced native fluorescence detection. The specific capacity of each alkaloid to penetrate into the cells was estimated...
H Rheinallt Parri et al.
The European journal of neuroscience, 32(1), 29-40 (2010-07-09)
The rodent ventrobasal (VB) thalamus receives sensory inputs from the whiskers and projects to the cortex, from which it receives reciprocal excitatory afferents. Much is known about the properties and functional roles of these glutamatergic inputs to thalamocortical neurons in...
Zila Martinez-Lozada et al.
Glia, 62(9), 1543-1558 (2014-05-29)
Signaling via the major excitatory amino acid glutamate has been implicated in the regulation of various aspects of the biology of oligodendrocytes, the myelinating cells of the central nervous system (CNS). In this respect, cells of the oligodendrocyte lineage have...
Enshe Jiang et al.
Journal of neurochemistry, 121(4), 526-536 (2012-02-22)
Decreased GABAergic synaptic strength ('disinhibition') in the spinal dorsal horn is a crucial mechanism contributing to the development and maintenance of pathological pain. However, mechanisms leading to disinhibition in the spinal dorsal horn remain elusive. We investigated the role of...
ShuJuan Fan et al.
Journal of Alzheimer's disease : JAD, 66(4), 1731-1743 (2018-11-20)
Alzheimer's disease (AD) is characterized by progressive impairment of learning, memory, and cognitive deficits. Glutamate is the major excitatory neurotransmitter in the central nervous system and plays an important role in learning, memory, and cognition. The homeostasis and reutilization of...
A Bertsche et al.
Epilepsy research, 88(2-3), 118-126 (2009-11-27)
Many epileptic syndromes develop into pharmaco-resistant forms, calling for the development of new anticonvulsant strategies. The transmitter glutamate serves a double role as excitatory transmitter and as precursor for GABA, thus interfering with glutamate uptake may therefore exert complex effects...
Kazuyuki Nakajima et al.
Neurochemistry international, 102, 1-12 (2016-11-07)
Microglia in the axotomized adult rat facial nucleus (axoFN) have been shown to highly express a glutamate transporter (GLT-1). The microglia appear to serve as glutamate (Glu) scavengers in the axoFN. However, there is no evidence that the microglia actually...
Rescue of glutamate transport in the lateral habenula alleviates depression-and anxiety-like behaviors in ethanol-withdrawn rats
Kang S, et al.
Neuropharmacology, 129(11), 47-56 (2018)

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