Abstract:
:Lowering extracellular magnesium induces different patterns of epileptiform activity in rat hippocampus and entorhinal cortex. Short recurrent epileptiform discharges in the hippocampus are stable over time, whereas seizure-like events (SLEs) in the entorhinal cortex, the subiculum, and the neighboring neocortex develop into late recurrent discharges which are not blocked by clinically employed antiepileptic drugs. We tested the sensitivity of the different epileptiform discharge patterns to N-methyl-D-aspartate (NMDA)- and non-NMDA-receptor antagonists. As NMDA-receptor antagonist we used dextrorphan, ketamine, and 2-aminophosphonovalerate (2APV); as alpha-amino-3-hydroxy-5-methyl-4-isoxazole-propionic acid (AMPA)-receptor antagonist we employed the quinoxaline derivative glutamate 6-cyano-7-nitroquinoxaline-2,3-dione (CNQX). The findings show that the different patterns of epileptiform activity, including the late recurrent discharges, are sensitive to all NMDA-receptor antagonists. However, when dextrorphan was employed to suppress seizure-like events, later recurrent discharges did not develop during the remaining time course of the experiment. CNQX reversibly suppressed recurrent discharges in the hippocampus and SLEs in the entorhinal cortex. However, late recurrent discharges become insensitive to CNQX, even at a high concentration of 60 microns. This finding suggests a prominent role for NMDA receptors in the generation of late recurrent discharges.
journal_name
Epilepsiajournal_title
Epilepsiaauthors
Zhang CL,Gloveli T,Heinemann Udoi
10.1111/j.1528-1157.1994.tb05973.xsubject
Has Abstractpub_date
1994-01-01 00:00:00pages
S68-73eissn
0013-9580issn
1528-1167journal_volume
35 Suppl 5pub_type
杂志文章相关文献
EPILEPSIA文献大全abstract::Epilepsy is a disease of recurrent seizures that can be associated with a wide variety of acquired and developmental brain lesions. Current medications for patients with epilepsy can suppress seizures; they do not cure or modify the underlying disease process. On the other hand, surgical removal of focal brain regions...
journal_title:Epilepsia
pub_type: 杂志文章,评审
doi:10.1111/epi.12441
更新日期:2013-12-01 00:00:00
abstract::The relationship between diurnal fluctuations in free (unbound) and total plasma carbamazepine levels and the appearance of intermittent side effects was investigated in nine epileptic patients receiving chronic therapy with carbamazepine, alone or in combination with phenobarbital. On a three-times-daily or four-time...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.1528-1157.1984.tb03446.x
更新日期:1984-08-01 00:00:00
abstract:PURPOSE:Subtle microdysplastic features are found in some patients with hippocampal sclerosis (HS) and refractory temporal lobe epilepsy. The significance of these findings is unknown. We investigated their frequency, relation to the pattern of HS, and clinical associations. METHODS:One-hundred forty patients with his...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.0013-9580.2004.57203.x
更新日期:2004-08-01 00:00:00
abstract:PURPOSE:Decline in verbal memory as a surgical complication remains an unresolved problem in mesial temporal lobe epilepsy. Some areas in the temporal lobe associated with the language function, often including the basal temporal language area, have been removed or transected by conventional surgical procedures. The au...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.1528-1167.2006.00610.x
更新日期:2006-08-01 00:00:00
abstract::Seventy-eight patients with temporal lobe type seizures were precisely matched for age, sex, and Wechsler I.Q. levels with patients suffering from other seizure types. Statistically significant differences were established between the groups in regard to treatment response, etiologies, and behavioral variables. Furthe...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.1528-1157.1976.tb03409.x
更新日期:1976-09-01 00:00:00
abstract:PURPOSE:We investigated whether RS-isovaline, a unique amino acid found in carbonaceous meteorites and presumed extraterrestrial, has anticonvulsant properties in rat hippocampal slices in vitro. METHODS:Extracellular recordings were obtained in the rat hippocampal CA1 pyramidal layer in two in vitro seizure models: p...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.1528-1167.2011.03260.x
更新日期:2011-11-01 00:00:00
abstract::Male and female sexuality and reproductive functions are complex systems with cortical, limbic system, hypothalamic, pituitary, and end organ interactions. Sexual steroids are produced in the sexual glands, the adrenals, and the brain. They undergo interconversion in the brain, bind to different brain areas, and have ...
journal_title:Epilepsia
pub_type: 杂志文章,评审
doi:10.1111/j.1528-1157.2000.tb01524.x
更新日期:2000-01-01 00:00:00
abstract::Amygdala kindling, the progressive development of seizures following repeated electrical stimulation, has been used as a model of epileptogenesis, neural memory, and the development of behavioral alterations. In an attempt to interfere with the kindling process, electroconvulsive seizures (ECS) were administered 6 h p...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.1528-1157.1984.tb04181.x
更新日期:1984-04-01 00:00:00
abstract:PURPOSE:The aim of this article is to review the literature on the effects of psychostimulants in epileptic subjects in order to reach a consensus statement regarding the use or abuse of these substances. METHODS:Psychostimulant substances have been considered the drugs that share the ability to produce excitation of ...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1046/j.1528-1157.2002.043s2028.x
更新日期:2002-01-01 00:00:00
abstract:PURPOSE:To describe the correlations between spiking pattern and EEG power spectrum frequency in DBA/2J mice, a model for murine absence seizures, after gamma-aminobutyric acid (GABA)(B) modulation. METHODS:The animals were first tested with the GABA(B) agonist l-baclofen followed by the GABA(B) antagonist SCH 50911. ...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.1528-1167.2006.00456.x
更新日期:2006-03-01 00:00:00
abstract::An early EEG (within 48 h) and high-resolution magnetic resonance imaging (hr_MRI) are the methods of choice for an accurate diagnosis after a first seizure presentation. Together with a careful history and examination, they will allow definition of the epilepsy syndrome in two-thirds of patients and help assess the i...
journal_title:Epilepsia
pub_type: 杂志文章,评审
doi:10.1111/j.1528-1167.2008.01445.x
更新日期:2008-01-01 00:00:00
abstract:PURPOSE:To describe postoperative outcome in patients with familial mesial temporal lobe epilepsy (FMTLE). METHODS:We studied FMTLE patients who underwent surgical treatment for refractory seizures. FMTLE was defined when at least two individuals in a family had a clinical EEG diagnosis of MTLE. Preoperative investiga...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1046/j.1528-1157.2003.06503.x
更新日期:2003-08-01 00:00:00
abstract::Differentiation between psychogenic nonepileptic seizures (PNES) and generalized convulsive epileptic seizures (ES) is important for appropriate triaging in the emergency department (ED). This can be difficult in the ED, as the event is often not witnessed by a medical professional. In the current study, we investigat...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/epi.13840
更新日期:2017-09-01 00:00:00
abstract::Autoantibodies to surface proteins that influence neuronal excitability are increasingly found in different forms of epilepsy or encephalitis in adults, and are also beginning to be identified in children. The conditions are often refractory to traditional antiepileptic drugs. Detection of these antibodies can help to...
journal_title:Epilepsia
pub_type: 杂志文章,评审
doi:10.1111/j.1528-1167.2011.03224.x
更新日期:2011-10-01 00:00:00
abstract:OBJECTIVE:To evaluate the efficacy and tolerability of antiepileptic drugs (AEDs) in elderly individuals with epilepsy. METHODS:We searched four electronic databases as well as bibliographies and conference abstracts. Published and unpublished, randomized, or quasirandomized trials reporting the use of AEDs in people ...
journal_title:Epilepsia
pub_type: 杂志文章,meta分析
doi:10.1111/epi.16068
更新日期:2019-07-01 00:00:00
abstract::Pyramidal cell densities in various regions of the anterior and posterior hippocampal formation were measured from en bloc temporal lobe resections and compared with presurgical stereoelectroencephalography (SEEG) data derived from depth electrodes in 12 patients with temporal lobe epilepsy. These data were compared w...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.1528-1157.1984.tb03483.x
更新日期:1984-12-01 00:00:00
abstract:PURPOSE:Epilepsy is the most common serious neurologic disease, and current treatments are ineffective for journal_title:Epilepsia pub_type: 杂志文章 doi:10.1111/j.1528-1167.2006.00540.x 更新日期:2006-07-01 00:00:00
abstract:PURPOSE:To describe the semiologic features of aggressive behaviors observed in human epileptic seizures with particular reference to the act of biting a conspecific. METHODS:We analyzed the biting behavior (BB) and other aggressive gestures occurring in a group of 11 patients retrospectively selected from >1,000 pati...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.1528-1167.2005.58404.x
更新日期:2005-05-01 00:00:00
abstract:PURPOSE:To evaluate safety and tolerability of ketogenic diet (KGD) and valproate (VPA) cotherapy in the treatment of intractable seizures. METHODS:The patient records of children who underwent KGD initiation at the Massachusetts General Hospital for Children from February 2002 to September 2004 were retrospectively a...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.1528-1167.2005.22705.x
更新日期:2005-09-01 00:00:00
abstract::The effects of antiepileptic drugs (AEDs) on cognitive function and behavior in children are reviewed on the basis of published studies. Individual AEDs have been shown to differ--the deleterious effects of phenytoin generally contrasting with the relatively minimal effects of valproate and carbamazepine. Some of the ...
journal_title:Epilepsia
pub_type: 杂志文章,评审
doi:10.1111/j.1528-1157.1990.tb05867.x
更新日期:1990-01-01 00:00:00
abstract::Cognitive and behavioral impairments are found more often among epileptic children than among their peers. The cause of these impairments is multifactorial. Identifying the relative contribution of antiepileptic drugs (AEDs) to these problems has been the object of a large number of clinical investigations. This area ...
journal_title:Epilepsia
pub_type: 杂志文章,评审
doi:10.1111/j.1528-1157.1998.tb01440.x
更新日期:1998-09-01 00:00:00
abstract:PURPOSE:Vigabatrin (VGB) and lamotrigine (LTG) are two new antiepileptic drugs (AEDs) with different mechanisms of action for treatment of refractory epilepsies. Previous reports have indicated efficacy of both drugs in a number of epileptic syndromes. METHODS:We compared these new AEDs drugs to determine their respec...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.1528-1157.1998.tb01184.x
更新日期:1998-08-01 00:00:00
abstract:OBJECTIVE:It has been suggested that multilobar epilepsies caused by lesions restricted to the posterior cerebral quadrant (ie, the parietal, temporal, and occipital lobes) can be treated successfully by a procedure termed posterior disconnection. The objective of the present paper was to identify determinants of the e...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/epi.16318
更新日期:2019-09-01 00:00:00
abstract::Idiopathic generalized epilepsies, i.e., juvenile myoclonic epilepsy (JME), childhood absence epilepsy, and epilepsy with grand mal [generalized tonic-clonic seizures (GTCS)], are the most common genetic epilepsies. Linkage studies using Bf, HLA serologic, and DNA markers by three independent investigators, one from L...
journal_title:Epilepsia
pub_type: 杂志文章,评审
doi:10.1111/j.1528-1157.1990.tb05855.x
更新日期:1990-01-01 00:00:00
abstract:PURPOSE:To assess the presence, extent, and clinical correlates of quantitative MR volumetric abnormalities in ipsilateral and contralateral hippocampus, and temporal and extratemporal lobe regions in unilateral temporal lobe epilepsy (TLE). METHODS:In total, 34 subjects with unilateral left (n = 15) or right (n = 19)...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.0013-9580.2005.27004.x
更新日期:2005-03-01 00:00:00
abstract::The safety, tolerability, and efficacy of gabapentin as adjunctive therapy were assessed in epileptic patients who had experienced up to four complex partial seizures per month while receiving phenytoin and/or carbamazepine. This was a multicenter, open-label prospective study, with the treatment period lasting 20 wee...
journal_title:Epilepsia
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1111/j.1528-1157.1999.tb00930.x
更新日期:1999-01-01 00:00:00
abstract:PURPOSE:In patients with tuberous sclerosis complex (TSC), a wide range of neurologic abnormalities develop, including mental retardation and seizures. Brains from TSC patients are characterized by the presence of cortical tubers, large dysmorphic neurons, and abnormal cytomegalic cells. Although analysis of human TSC ...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.0013-9580.2004.23004.x
更新日期:2004-12-01 00:00:00
abstract:PURPOSE:The selection of a minimal active sequence of erythropoietin allowed the design of peptide mimetics that exert beneficial effects in the central nervous system but lack an erythropoietic effect. Erythropoietin has been suggested as a promising therapeutic and prophylactic for epilepsies based on its neuroprotec...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1111/j.1528-1167.2011.03302.x
更新日期:2011-12-01 00:00:00
abstract::A case of Rasmussen encephalitis with bilateral involvement and onset at age 2 years is reviewed. Rasmussen encephalitis is a rare progressive disease that causes intractable seizures, cognitive decline, and inflammatory changes in the brain. The neurologic involvement is characteristically unilateral. Bilateral invol...
journal_title:Epilepsia
pub_type: 杂志文章
doi:10.1046/j.1528-1157.2003.36602.x
更新日期:2003-01-01 00:00:00
abstract:OBJECTIVE:To define the phenotypic spectrum of phosphatidylinositol glycan class A protein (PIGA)-related congenital disorder of glycosylation (PIGA-CDG) and evaluate genotype-phenotype correlations. METHODS:Our cohort encompasses 40 affected males with a pathogenic PIGA variant. We performed a detailed phenotypic ass...
journal_title:Epilepsia
pub_type: 杂志文章,评审
doi:10.1111/epi.16545
更新日期:2020-06-01 00:00:00