Abstract：
:Seletracetam (SEL), an analog of the antiepileptic drug levetiracetam (LEV), decreases seizure activity in a number of epilepsy models and binds to the synaptic vesicle protein SV2A with a higher affinity than LEV. Experiments were performed to determine if SEL, like LEV, reduces the later EPSPs in long trains of stimuli in a manner dependent upon access to the interior of synaptic vesicles and SV2A binding. When hippocampal slices were incubated in 3-30μM SEL for 3h, but not 30 min, the relative amplitude of the CA1 field excitatory synaptic potentials decreased over the course of a train of high frequency stimuli more than for control slices. This short term depression was frequency and dose dependent and largely disappeared when the spontaneous activity during the loading period was removed by cutting the Schaffer collaterals. The SEL effect was also observed in slices loaded during prolonged stimulation at 1Hz, but not 10Hz. Hippocampal slices loaded with both SEL and FM1-43 to visualize synaptic boutons released the FM1-43 in response to prolonged stimulation much more slowly than control slices during prolonged stimulation. Like LEV, SEL produced a frequency-dependent decrement of synaptic transmission that was dependent upon the drug entering recycling synaptic vesicles and compatible with SV2A binding. Previous observations of SV2A binding affinity correlated with the current effect of SEL and the previously reported effect of LEV on synaptic transmission validate SV2A as an extremely attractive target for future antiepileptic drug development.
journal_name
Epilepsy Resjournal_title
Epilepsy researchauthors
Yang X,Meehan AL,Rothman SM,Dubinsky JMdoi
10.1016/j.eplepsyres.2015.08.006subject
Has Abstractpub_date
2015-11-01 00:00:00pages
17-22eissn
0920-1211issn
1872-6844pii
S0920-1211(15)30036-Xjournal_volume
117pub_type
杂志文章abstract：:Special issues are related to AED testing in several populations. Pharmacokinetics, pharmacodynamics and underlying neurochemistry and developing systems require specific testing in appropriate infants with refractory seizures. EEG monitoring is an essential part of seizure definition and recognition, making it a nece...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2005.09.017
更新日期：2006-01-01 00:00:00
abstract：:Apolipoprotein E (ApoE) has been implicated as one of the susceptibility genes for temporal lobe epilepsy (TLE). Previous studies indicate that ApoE ɛ4 is associated with several disease-related traits including the increased risk of late posttraumatic seizures, earlier onset of TLE, refractory complex partial seizure...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2010.07.020
更新日期：2010-10-01 00:00:00
abstract：:Early neuropsychological changes following partial anterior callosotomy were evaluated in 15 patients with epilepsy (10 secondary generalized and 5 Lennox-Gastaut syndromes) by comparing their performances 1 month before surgery and then 15-20 and 90-100 days postoperatively without modifying the anticonvulsant treatm...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(90)90091-9
更新日期：1990-07-01 00:00:00
abstract：:Classification of seizures arising from the cortical motor system classically distinguishes between primary motor seizures and supplementary motor area (SMA) seizures. With the aim of better characterizing the underlying networks of motor seizures, we quantitatively studied the "epileptogenicity" of brain structures i...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2013.04.011
更新日期：2013-09-01 00:00:00
abstract：:Fifty-eight patients with drug-resistant partial epilepsy were studied preoperatively by interictal rCBF measurements using 99mTc-HMPAO and a dedicated brain SPECT camera (Tomomatic 64). Follow-up of seizure outcome, using the "Engel score", was at least 3 years. The data were analyzed in a blinded set-up, first visua...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(96)00018-6
更新日期：1996-09-01 00:00:00
abstract：:The ketogenic diet has been used to treat intractable epilepsy for many years, yet the mechanism(s) underlying its effectiveness have not been completely elucidated. However, emerging evidence indicates that the ketogenic diet may correct or otherwise alter a 'dystopic' gut microbiota that exhibits altered fecal micro...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2020.106409
更新日期：2020-10-01 00:00:00
abstract：:Severe paediatric epilepsies such as CDKL5 Deficiency Disorder (CDD) are extremely debilitating, largely due to the early-onset and refractory nature of the seizures. Existing treatment options are often ineffective and associated with a host of adverse effects, causing those that are affected to seek alternative trea...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2019.02.001
更新日期：2019-03-01 00:00:00
abstract：OBJECTIVE:Intensive and quantitative evaluation of the duration, intensity and frequency of tonic and clonic signs of secondarily generalized tonic-clonic seizures (GTCS) in patients with pharmacoresistant partial seizures during topiramate (TPM) treatment. METHODS:Thirty patients suffering from refractory partial sei...
journal_title：Epilepsy research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0920-1211(02)00014-1
更新日期：2002-04-01 00:00:00
abstract：:Dichotic word listening asymmetries are thought to be useful in predicting side of temporal lobe dysfunction. However, little direct evidence exists to support this assumption in practice, especially in patients with subtle epileptogenic lesions. To determine if word listening ear asymmetries are valid predictors of s...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(94)90025-6
更新日期：1994-10-01 00:00:00
abstract：:Acute encephalopathy with biphasic seizures and late reduced diffusion (AESD) is a newly defined clinicoradiologic syndrome characterized by biphasic seizures and altered consciousness followed by restricted diffusion in the white matter on magnetic resonance imaging in acute phase. Intractable epilepsy commonly occur...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2018.04.006
更新日期：2018-07-01 00:00:00
abstract：:The motivational consequences of kindling were examined in the conditioned place preference paradigm. In a distinctive environment, rats received stimulation of the amygdala that triggered afterdischarge (AD) alone or AD and generalized seizures. After 4 conditioning trials, preference for the conditioning environment...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(92)90051-t
更新日期：1992-12-01 00:00:00
abstract：BACKGROUND:Valproate is used widely for the treatment of epilepsy but has been associated with hyperandrogenism, hyperinsulinemia, and dyslipidemia. The mechanism for these associations is unknown, but they have been hypothesized to be secondary to valproate-associated weight gain. This study was conducted to test the ...
journal_title：Epilepsy research
pub_type： 杂志文章,多中心研究
doi：10.1016/s0920-1211(03)00085-8
更新日期：2003-05-01 00:00:00
abstract：AIMS:To investigate the pathophysiology of pharmacoresistant epilepsies with cryptogenic generalised tonic-clonic seizures (GTCS) from infancy. METHODS:18F-Deoxy-Glucose-Positron Emission Tomography 18FDG-PET) with statistical parametric mapping (SPM). Inclusion criteria were: pharmacoresistant chronic epilepsy with G...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2004.05.006
更新日期：2004-06-01 00:00:00
abstract：:Spreading depression (SD), a self-propagating wave of reversible cellular depolarization, is thought to play an important role in brain pathophysiology. SD and seizures are closely related events but little is known about involvement of SD in chronic epileptogenesis. Here we show that cortical SD is the first and high...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2006.05.014
更新日期：2006-09-01 00:00:00
abstract：:Seizure forecasting would improve the quality of life of patients with refractory epilepsy. Although early findings were optimistic, no single feature has been found capable of individually characterizing brain dynamics during transition to seizure. Cross-frequency phase amplitude coupling has been recently proposed a...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2017.11.009
更新日期：2018-01-01 00:00:00
abstract：:Treatment of epileptic patients with valproic acid (VPA) may be associated with substantial weight changes that may increase morbidity and impair adherence to the treatment regimen. VPA-induced weight gain seems to be associated with many metabolic disturbances; the most frequent are hyperinsulinemia and insulin resis...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2013.08.016
更新日期：2013-11-01 00:00:00
abstract：:Alterations in the level of consciousness may render the interpretation of the memory test results from the intracarotid amobarbital procedure difficult. The present study was designed to investigate the impact of inattention and somnolence on memory performance during the Amytal test. Nineteen consecutive patients un...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(92)90079-9
更新日期：1992-09-01 00:00:00
abstract：:Multiple sclerosis (MS) patients are at higher risk for epilepsy. Epilepsy was frequent among our MS patients (6.55%). Progressive MS forms were associated with higher incidence of epilepsy (p=0.021). Partial motor seizures were observed in five patients (62.5%) and generalized tonic-clonic in three (37.5%). Electroen...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2009.01.009
更新日期：2009-04-01 00:00:00
abstract：:The 5-hydroxytryptamine-1A (5-HT1A) receptors are known to be involved in the inhibition of seizures in epilepsy. Moreover, studies propose a role for the 5-HT1A receptor in memory function; it is believed that the higher density of this receptor in the hippocampus plays an important role in its regulation. Positron e...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2014.09.013
更新日期：2014-12-01 00:00:00
abstract：:To assess the efficacy of CM40907--a new antiepileptic drug--in suppressing inter-ictal spikes, 6 patients with severe intractable epilepsy and frequent spikes in their inter-ictal EEGs were entered in a double-blind placebo-controlled trial. The results show that CM40907 is efficacious in reducing spike counts in the...
journal_title：Epilepsy research
pub_type： 临床试验,杂志文章
doi：10.1016/0920-1211(90)90046-x
更新日期：1990-04-01 00:00:00
abstract：:In rats, electrographic seizure activity was recorded from both the inferior collicular cortex and the deep prepiriform after i.p. administration of 15 mumol/kg bicuculline, a dose which produced a variety of seizure behaviors. electrographic spikes recorded from the deep prepiriform cortex coincided with myoclonic je...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(91)90032-b
更新日期：1991-01-01 00:00:00
abstract：:Traumatic brain injury (TBI) is a leading cause of symptomatic epilepsy in young adults. This study examined physiological and anatomical epileptogenic consequences of a prior incident of TBI in rats. Rats were subjected to a fluid percussion brain injury one week prior to experimentation, and in vitro electrophysiolo...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(96)00044-7
更新日期：1996-12-01 00:00:00
abstract：:We have reported long-term clinical follow-up for two siblings with Lafora disease, a brother and sister, one of whom autopsied. Both siblings had repeated attacks of severe myoclonus, tonic and tonic-clonic convulsions, and intractable status epilepticus. The addition of orally administered zonisamide brought about s...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(01)00282-0
更新日期：2001-09-01 00:00:00
abstract：:To help identify patients at greatest risk for sudden unexpected death in epilepsy (SUDEP), screening inventories like the SUDEP-7 Inventory can be useful. In this study, we examined the strength of association between this inventory's risk factors and postictal generalized EEG suppression (PGES), a biomarker of SUDEP...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2015.09.006
更新日期：2015-11-01 00:00:00
abstract：:Most people with epilepsy live in tropical countries. Perinatal factors seem to play a significant role in the occurrence of epilepsy. Available data provide different and sometimes contradictory conclusions on the role and the burden of these factors. The aim of our study was to evaluate the effect of these perinatal...
journal_title：Epilepsy research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.eplepsyres.2018.07.004
更新日期：2018-10-01 00:00:00
abstract：:We report an interaction between lamotrigine (LTG), a new antiepileptic drug (AED), and carbamazepine (CBZ) and its primary metabolite CBZ-10,11-epoxide (CBZ-E) in 9 consecutive patients (5 male, 4 female, aged 19-31 years). After introduction of LTG (median daily dose 200 mg, range 100-300 mg) the mean serum CBZ-E co...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(92)90049-y
更新日期：1992-04-01 00:00:00
abstract：PURPOSE:We investigated long term prognosis of Lennox-Gastaut syndrome (LGS) with active application of recent advanced treatment modalities such as ketogenic diet (KD) or epilepsy surgery (ES). METHODS:We retrospectively evaluated 68 patients with LGS, aged 18-35 years. We assessed seizure outcomes for a range of the...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2014.11.004
更新日期：2015-02-01 00:00:00
abstract：:Benign myoclonic epilepsy in infancy is a rare syndrome with just over 100 cases reported since the first syndromic description by Dravet and Bureau [Dravet, C., Bureau, M., 1981. The benign myoclonic epilepsy of infancy. Rev. Elecroencephalogr. Neurophysiol. Clin. 11, 438-444]. This includes 23 infants with reflex my...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2006.01.014
更新日期：2006-08-01 00:00:00
abstract：BACKGROUND:Diffusion tensor tractography of the anterior extent of the optic radiation - Meyer's loop - prior to temporal lobe resection (TLR) may reduce the risk for postoperative visual field defect. Currently there is no standardized way to perform tractography. OBJECTIVE:To visualize Meyer's loop using determinist...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2014.01.017
更新日期：2014-03-01 00:00:00
abstract：:The novel anticonvulsant, remacemide HCl [(+/-)-2-amino-N-(1-methyl-1,2-diphenylethyl)acetamide monohydrochloride; FPL12924AA], and a desglycinated metabolite [(+/-)-1-methyl-1,2-diphenylethylamine monohydrochloride; FPL 12495AA] reversibly limited sustained high-frequency repetitive firing (SRF) of sodium-dependent a...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(95)00053-4
更新日期：1996-02-01 00:00:00
