Abstract:
:Altered expression and distribution of neurotransmitter receptors, including metabotropic glutamate receptors (mGluRs), constitute key aspects in epileptogenesis, impaired hippocampal excitability and neuronal degeneration. mGluR1 mediates predominantly excitatory effects, whereas mGluR4 acts as inhibitory presynaptic receptor. Increased hippocampal expression of mGluR1 and mGluR4 has been observed in human temporal lobe epilepsy (TLE). In this study, we address whether genetic mGluR1 upregulation and mGluR4 knock-down influence seizure susceptibility and/or vulnerability of hippocampal neurons by analyzing transgenic animals in the pilocarpine TLE model. Therefore, we generated transgenic mice expressing mGluR1-enhanced green fluorescent protein (EGFP) fusion protein under control of the human cytomegalovirus (CMV) immediate early promoter. Status epilepticus (SE) was induced in (a) mice overexpressing mGluR1-EGFP and (b) mice deficient for mGluR4 (mGluR4 KO) as well as littermate controls. In the acute epileptic stage after pilocarpine application, mGluR4 KO mice showed a significant increase of severe seizure activity, in contrast to mGluR1 transgenics. Analysis of both transgenic mouse lines in the chronic epileptic phase, using a telemetric EEG-/video-monitoring system, revealed a significant increase in seizure frequency only in mGluR1-EGFP mice. In contrast, enhanced neuronal cell loss was only present in the hippocampus of epileptic mGluR4 KO mice. Our results suggest a role for mGluR1 in promoting seizure susceptibility as well as for mGluR4 to counteract excitatory activity and seizure-associated vulnerability of hippocampal neurons. Therefore, our data strongly recommend both mGluRs as potential drug targets to interfere with the development of hippocampal damage and seizure activity in TLE.
journal_name
Neurobiol Disjournal_title
Neurobiology of diseaseauthors
Pitsch J,Schoch S,Gueler N,Flor PJ,van der Putten H,Becker AJdoi
10.1016/j.nbd.2007.03.003subject
Has Abstractpub_date
2007-06-01 00:00:00pages
623-33issue
3eissn
0969-9961issn
1095-953Xpii
S0969-9961(07)00058-7journal_volume
26pub_type
杂志文章abstract::Converging lines of evidence suggest that neuroinflammatory processes may account for the progressive death of dopaminergic neurons in Parkinson's disease (PD). Therefore, anti-inflammatory strategies have attracted much interest for their potential to prevent further deterioration of PD. Our previous study showed tha...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2004.12.005
更新日期:2005-04-01 00:00:00
abstract::Constitutive expression of C-C chemokine receptor (CCR) 5 has been detected in astrocytes, microglia and neurons, but its physiological roles in the central nervous system are obscure. The bidirectional interactions between neuron and glial cells through CCR5 and its ligands were thought to be crucial for maintaining ...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2012.08.001
更新日期:2013-01-01 00:00:00
abstract::The identification of novel molecular targets crucially involved in motor neuron degeneration/survival is a necessary step for the development of hopefully more effective therapeutic strategies for amyotrophic lateral sclerosis (ALS) patients. In this view, S1R, an endoplasmic reticulum (ER)-resident receptor with cha...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2013.10.010
更新日期:2014-02-01 00:00:00
abstract::Nicotinamide adenine dinucleotide phosphate oxidase (NOX) is widely expressed in brain tissue including neurons, glia, and endothelia in neurovascular units. It is a major source of oxidants in the post-ischemic brain and significantly contributes to ischemic brain damage. Inflammation occurs after brain ischemia and ...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2011.01.027
更新日期:2011-06-01 00:00:00
abstract::Huntington's disease (HD) and Dentatorubral and pallidoluysian atrophy (DRPLA) are autosomal dominant, neurodegenerative disorders caused by the expansion of polyglutamine tracts in their respective proteins, huntingtin and atrophin-1. We have previously generated mouse models of these disorders, using transgenes expr...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1006/nbdi.2001.0385
更新日期:2001-06-01 00:00:00
abstract::Alpha-synuclein (aSyn) is the major protein component of Lewy bodies and Lewy neurites, the typical pathological hallmarks in Parkinson's disease (PD) and Dementia with Lewy bodies. aSyn is capable of inducing transcriptional deregulation, but the precise effect of specific aSyn mutants associated with familial forms ...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2018.08.001
更新日期:2018-11-01 00:00:00
abstract::Photoreceptor cell death is an irreversible, pathologic event in many blinding retinal diseases including retinitis pigmentosa, age-related macular disease, and retinal detachment. Light exposure can exacerbate a variety of human retinal diseases by increasing the rate of photoreceptor cell death. In the present study...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2005.08.017
更新日期:2006-03-01 00:00:00
abstract::Huntington's disease (HD) is an autosomal dominant neurodegenerative disorder that results in motor, cognitive and psychiatric abnormalities. Dysfunction in neuronal processing between the cortex and the basal ganglia is fundamental to the onset and progression of the HD phenotype. The corticosubthalamic hyperdirect p...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2015.03.006
更新日期:2015-06-01 00:00:00
abstract::Dystonia and levodopa-induced dyskinesia (LID) are both hyperkinetic movement disorders. Dystonia arises most often spontaneously, although it may be seen after stroke, injury, or as a result of genetic causes. LID is associated with Parkinson's disease (PD), emerging as a consequence of chronic therapy with levodopa,...
journal_title:Neurobiology of disease
pub_type: 杂志文章,评审
doi:10.1016/j.nbd.2019.104579
更新日期:2019-12-01 00:00:00
abstract::The worldwide proliferation of mobile phones raises the question of the effects of 900-MHz electromagnetic fields (EMF) on the brain. Using a head-only exposure device in the rat, we showed that a 15-min exposure to 900-MHz pulsed microwaves at a high brain-averaged power of 6 W/kg induced a strong glial reaction in t...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2004.07.004
更新日期:2004-12-01 00:00:00
abstract::Background While significant advances have been made in uncovering the aetiology of Alzheimer's disease and related dementias at the genetic level, molecular events at the epigenetic level remain largely undefined. Emerging evidence indicates that small non-coding RNAs (sncRNAs) and their associated RNA modifications ...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2020.105058
更新日期:2020-11-01 00:00:00
abstract::GPNMB is a glycoprotein observed upon tissue damage and inflammation and is associated with astrocytes, microglia, and macrophages. Gene variations in GPNMB are linked with Parkinson's disease (PD) risk, and changes in protein levels of GPNMB have been found in lysosomal storage disorders, including Gaucher's disease ...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2018.08.013
更新日期:2018-12-01 00:00:00
abstract::The interest in the pedunculopontine tegmental nucleus (PPTg), a structure located in the brainstem at the level of the pontomesencephalic junction, has greatly increased in recent years because it is involved in the regulation of physiological functions that fail in Parkinson's disease and because it is a promising t...
journal_title:Neurobiology of disease
pub_type: 杂志文章,评审
doi:10.1016/j.nbd.2018.03.004
更新日期:2019-08-01 00:00:00
abstract::Glutathione (GSH) is an important neuroprotective molecule in the brain. The strategy to increase neuronal GSH level is a promising approach to the treatment of neurodegenerative diseases. However, the regulatory mechanism by which neuron-specific GSH synthesis is facilitated remains elusive. Glutamate transporter-ass...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2011.12.016
更新日期:2012-03-01 00:00:00
abstract::Excitotoxicity plays a central role in the neuronal damage during ischemic stroke. Although growing evidence suggests that activation of extrasynaptic NMDA receptors initiates neuronal death, no direct evidence demonstrated their activation during ischemia. Using rat hippocampal slices, we detected oxygen-glucose depr...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2013.05.005
更新日期:2013-10-01 00:00:00
abstract::Several reports indicate that the activity of the hypothalamic–pituitary–adrenal axis (HPA) is increased after a brain insult and that its down-regulation can improve detrimental outcomes associated with ischemic brain injuries.Granulocyte-colony stimulating factor (G-CSF) is a neuroprotective drug shown in the naïve ...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2012.03.021
更新日期:2012-07-01 00:00:00
abstract::Multiple sclerosis (MS) is the prototypical inflammatory disease of the central nervous system (CNS), leading to multifocal demyelination and neurodegeneration. The etiology of this incurable disease is unknown and remains a matter of intensive research. The possibility that microbial infections, such as viruses or ba...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2018.05.022
更新日期:2018-09-01 00:00:00
abstract::Chronic inflammation is known to play an important role in the heterogeneous pathogenesis of Alzheimer's disease (AD). Activated astrocytes expressing glial fibrillary acidic protein (GFAP) are closely associated with AD pathology, such as tangles, neuritic plaques and amyloid depositions. Altogether, 46 soluble isofo...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2005.05.021
更新日期:2005-12-01 00:00:00
abstract::TRIM family proteins are involved in a broad range of biological processes, and their alteration results in many diverse pathological conditions found in genetic diseases, viral infections, and cancers. However, the spatial and temporal expression and function of TRIM9, one of TRIM family proteins, remain obscure. Our...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2010.01.007
更新日期:2010-05-01 00:00:00
abstract::Parkinson's disease (PD) is a neurodegenerative disorder caused by loss of dopaminergic neurons. Although many reports have suggested that genetic factors are implicated in the pathogenesis of PD, molecular mechanisms underlying selective dopaminergic neuronal degeneration remain unknown. DJ-1 is a causative gene for ...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2011.05.014
更新日期:2011-09-01 00:00:00
abstract::Huntington's disease (HD) is a genetic neurodegenerative disease characterized by movement disorders, cognitive decline and neuropsychiatric symptoms. HD is caused by expanded CAG tract within the coding region of Huntingtin protein. Despite major insights into the molecular mechanisms leading to HD, no effective cure...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2012.04.007
更新日期:2012-08-01 00:00:00
abstract::Expansion of polyglutamine repeats is the cause of at least nine inherited human neurodegenerative disorders, including Huntington's disease (HD). It is widely accepted that deregulation of the transcriptional coactivator CBP by expanded huntingtin (htt) plays an important role in HD molecular pathogenesis. In this st...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2012.03.008
更新日期:2012-06-01 00:00:00
abstract::Both the cellular prion protein (PrP(c)) and the amyloid precursor protein (APP) are physiologically subjected to complex proteolytic processing events. While for APP the proteinases involved--alpha-, beta- and gamma-secretase--have been identified in vitro and in vivo, the cleavage of PrP(c) by now has been linked on...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2009.07.015
更新日期:2009-11-01 00:00:00
abstract::Deep brain stimulation for epilepsy has garnered attention from epileptologists due to its well-documented success in treating movement disorders and the low morbidity associated with the implantation of electrodes. Given the large proportion of patients who fail medical therapy and are not candidates for surgical ame...
journal_title:Neurobiology of disease
pub_type: 杂志文章,评审
doi:10.1016/j.nbd.2009.07.007
更新日期:2010-06-01 00:00:00
abstract::The repertoire of biochemicals (or small molecules) present in cells, tissue, and body fluids is known as the metabolome. Today, clinicians utilize only a very small part of the information contained in the metabolome, as revealed by the quantification of a limited set of analytes to gain information on human health. ...
journal_title:Neurobiology of disease
pub_type: 杂志文章,评审
doi:10.1016/j.nbd.2009.02.019
更新日期:2009-08-01 00:00:00
abstract::Voltage-gated sodium channels (VGSCs) are essential for the generation and propagation of action potentials in electrically excitable cells. Dominant mutations in SCN1A, which encodes the Nav1.1 VGSC α-subunit, underlie several forms of epilepsy, including Dravet syndrome (DS) and genetic epilepsy with febrile seizure...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2012.08.012
更新日期:2013-01-01 00:00:00
abstract::Clinical studies indicate that phenytoin prevents acute post-traumatic seizures but not subsequent post-traumatic epilepsy. We explored this phenomenon using organotypic hippocampal slice cultures as a model of severe traumatic brain injury. Hippocampal slices were cultured for up to eight weeks, during which acute an...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2011.11.001
更新日期:2012-02-01 00:00:00
abstract::Major depressive disorder (MDD) is one of the most prevalent major psychiatric disorders with a lifetime prevalence of 17%. Recent evidence suggests MDD is not only a brain dysfunction, but a systemic disease affecting the whole body. Central and peripheral inflammatory changes seem to be a centerpiece of MDD patholog...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2016.01.015
更新日期:2016-05-01 00:00:00
abstract::Neuropathological findings in the amygdala obtained from patients with mesial temporal lobe epilepsy (MTLE) indicate varying degrees of histopathological alterations, such as neuronal loss and gliosis. The mechanisms underlying cellular damage in the amygdala of patients with MTLE have not been fully elucidated. In th...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1016/j.nbd.2018.12.017
更新日期:2019-04-01 00:00:00
abstract::Huntington's disease (HD) is a late-onset neurodegenerative disease for which the mutation is CAG/polyglutamine repeat expansion. The R6 mouse lines expressing the HD mutation develop a movement disorder that is preceded by the formation of neuronal polyglutamine aggregates. The phenotype is likely caused by a widespr...
journal_title:Neurobiology of disease
pub_type: 杂志文章
doi:10.1006/nbdi.2001.0430
更新日期:2001-10-01 00:00:00