Abstract：
:The inbred Wistar Albino Glaxo Rats from Rijswijk (WAG/Rij) and the Genetic Absence Epilepsy Rats from Strasbourg (GAERS) are well-validated genetic models of absence epilepsy. Although they share similar characteristics including the spike-and-wave discharges (SWDs) in the EEG, some differences have been reported between both strains. This study aimed a systematic and detailed comparison of the SWD patterns of both strains in terms of the intensity, frequency and waveform morphology of the discharges by using exactly the same measurement and analysis techniques. The number, cumulative total duration and mean duration of SWDs were significantly higher in GAERS compared to WAG/Rij, while the discharge frequency was higher in the WAG/Rij. Furthermore, SWDs spectra and average SWD waveforms indicated that a single cycle of the SWD contains more energy in faster components such as spike and late positive transient in the GAERS. Additionally, WAG/Rij exhibited a significantly higher power between 8 and 14 Hz during the pre-SWD period. These clear phenomenological differences in the EEGs of both animal models suggest that these variables may represent basic phenotypic features of SWDs that should be sought after in the future studies that explore the genetic and molecular basis of absence epilepsy.
journal_name
Epilepsy Resjournal_title
Epilepsy researchauthors
Akman O,Demiralp T,Ates N,Onat FYdoi
10.1016/j.eplepsyres.2009.12.005subject
Has Abstractpub_date
2010-05-01 00:00:00pages
185-93issue
2-3eissn
0920-1211issn
1872-6844pii
S0920-1211(09)00381-7journal_volume
89pub_type
杂志文章abstract：:Recently, mutations of KCNQ2 or KCNQ3, members of the KCNQ-related K(+)-channel (KCNQ-channel) family, were identified as cause of benign familial neonatal convulsions (BFNC). However, the exact pathogenic mechanisms of age-dependent development and spontaneous remission of BFNC remain to be elucidated. To clarify the...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(02)00249-8
更新日期：2003-02-01 00:00:00
abstract：:Five oral formulations of valproic acid (VPA)/divalproex sodium are approved and commonly used in the US for treatment of epilepsy, mania/bipolar disorder and migraine prophylaxis. These formulations have unique pharmacokinetic and formulation characteristics and are designed to treat distinct patient populations. We ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2006.11.005
更新日期：2007-03-01 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：: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：:In a selected group of temporal lobe epilepsy patients with seizures refractory to pharmacological treatment, pharmacological seizure control can be attained by surgical resection of the epileptic zone. We investigated to what extent pharmaco-resistance is reflected in a reduced response at the cellular level, in neur...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(98)00061-8
更新日期：1998-09-01 00:00:00
abstract：OBJECTIVE:To assess functional organization of the motor cortex in patients with Unverricht-Lundborg disease (EPM1A) using a combined neurophysiologic and imaging approach. METHODS:EPM1A patients underwent transcranial magnetic stimulation (TMS)-based cortical mapping of the motor hand area. Moreover, they performed n...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2020.106278
更新日期：2020-02-01 00:00:00
abstract：:Hemimegalencephaly (HME) is a severe unilateral brain malformation the prognosis of which may be improved by hemispherectomy. HME also provides a unique opportunity to compare normal and pathological hemispheric function in the same patient. We performed a serial functional cerebral imaging study in a child suffering ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(91)90069-r
更新日期：1991-04-01 00:00:00
abstract：:There is a remarkable array of new chemical entities in the current antiepileptic drug (AED) development pipeline. In some cases, the compounds were synthesized in an attempt improve upon the activity of marketed AEDs. In other cases, the discovery of antiepileptic potential was largely serendipitous. Entry into the p...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2006.02.004
更新日期：2006-06-01 00:00:00
abstract：:Developmental changes of transport of drugs into the brain play an important role in ontogenetic neuropharmacology. Two convulsant drugs with different mechanisms of action (glutamate and bicuculline methiodide) were chosen to demonstrate these changes in developing rats. High dose of glutamate (4 g/kg i.p.) induced b...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(00)00179-0
更新日期：2000-12-01 00:00:00
abstract：:Increased excitatory amino acid transmission and decreased GABAergic inhibitory responses seem to be important mechanisms in the genesis of convulsions, where reactive oxygen species (ROS) have recently been suggested to play a critical role. Therefore, administration of antioxidants may be potentially beneficial for ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2005.08.005
更新日期：2005-08-01 00:00:00
abstract：:The aim of the study was to compare subjective complaints of epilepsy patients with objective results of neuropsychological assessment and to investigate the possible influence of depression on self-reported complaints. 62 patients from the neurology clinic were included in the study. They were asked to fill the subje...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2009.02.006
更新日期：2009-04-01 00:00:00
abstract：:Overexpression of multidrug efflux transporters such as P-glycoprotein (Pgp; ABCB1) or multidrug resistance proteins (MRPs; ABCC) in the blood-brain barrier has recently been suggested to explain, at least in part, pharmacoresistance in epilepsy, which affects about 30% of all patients with this common brain disorder....
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2003.12.007
更新日期：2004-02-01 00:00:00
abstract：:Posttraumatic epilepsy is a common consequence of traumatic brain injury in humans. Major predictors for the development of posttraumatic epilepsy include the severity of injury and occurrence of cortical contusions. The effect of the size or location of the cortical lesion on the risk of epileptogenesis, however, is ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2010.03.007
更新日期：2010-06-01 00:00:00
abstract：PURPOSE:Cases of temporal lobe epilepsy (TLE) with ipsilateral amygdala enlargement (AE) have increasingly been reported. However, the white matter (WM) abnormalities of TLE patients with AE remain poorly investigated. Here we explored macrostructural and microstructural WM abnormalities in TLE patients with AE compare...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2016.09.011
更新日期：2016-11-01 00:00:00
abstract：:To further elucidate the inheritance pattern and range of phenotypic manifestations of benign familial temporal lobe epilepsy (FTLE), we report a large family recently identified in southern Italy. There were 8 patients (4 men), ranging in age from 31 to 68 years in three generations. One affected patient was deceased...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(99)00080-7
更新日期：2000-02-01 00:00:00
abstract：:We examined 1715 seizures recorded on a dedicated epilepsy inpatient ward over 363 days in 2006-2007. Epileptic seizures, particularly complex partial seizures are less likely to occur on bright sunny days, than dull days. This correlation remains stable when seasonal patterns are controlled for. Non-epileptic attacks...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2008.11.015
更新日期：2009-03-01 00:00:00
abstract：INTRODUCTION:The anticonvulsant effects of melatonin (MT) have been demonstrated in several different experimental seizure models. Thus, the present study aimed to determine the anticonvulsant efficacy of MT, the optimum time for its administration prior to the induction of a seizure, and its effective dose in a rat mo...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2015.11.004
更新日期：2015-12-01 00:00:00
abstract：OBJECT:The use of T2 relaxometry was investigated to detect non-sclerotic epileptogenic abnormality of the hippocampus in presurgical evaluation of temporal lobe epilepsy (TLE). METHODS:This prospective study included 30 patients who underwent hippocampectomy as part of surgical treatment of refractory TLE. Ten patien...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2016.06.001
更新日期：2016-10-01 00:00:00
abstract：:It has been suggested that loss of the astrocytic water channel aquaporin-4 (AQP4) from perivascular endfeet in sclerotic hippocampi contributes to increased seizure propensity in human mesial temporal lobe epilepsy (MTLE). Whether this loss occurs prior to or as a consequence of epilepsy development remains to be res...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2013.01.006
更新日期：2013-07-01 00:00:00
abstract：PURPOSE:The present study was planned as there is paucity of outcome data of children with infantile spasms, from India where profile of patients is different from the western world. Moreover, most previous studies have either not used strict inclusion criteria or standardized psychometric tests for developmental outco...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2013.12.009
更新日期：2014-03-01 00:00:00
abstract：:Infantile spasms (IS) is a developmental and epileptic encephalopathy with heterogeneous etiologies including many genetic causes. Genetic studies have identified pathogenic variants in over 30 genes as causes of IS. Many of these genetic causes are extremely rare, with only one reported incidence in an individual wit...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2019.106181
更新日期：2019-10-01 00:00:00
abstract：:The aim of the present study was to evaluate the risk of intrauterine growth delay in the offspring of epileptic mothers and to quantify the risks of intrauterine exposure to antiepileptic drugs (AEDs). Data concerning 870 newborns, prospectively collected in Canada, Japan and Italy, using the same study design, were ...
journal_title：Epilepsy research
pub_type： 杂志文章,多中心研究
doi：10.1016/s0920-1211(99)00020-0
更新日期：1999-08-01 00:00:00
abstract：:Polyamine (tissue) concentrations have been studied in hippocampus and temporal neocortex from patients with temporal lobe epilepsy. Depth electrode recordings demonstrated hippocampal origin of the seizures, the temporal neocortex being involved during the discharge propagation. Neuropathological examination of excis...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(92)90035-r
更新日期：1992-07-01 00:00:00
abstract：PURPOSE:The intracarotid amytal test is commonly used as a predictor of memory dysfunctioning after anterior temporal lobe resection (ATL) for intractable epilepsy. Asymmetry in memory scores can provide focus lateralizing information. In this study the predictive value of a set of Wada test parameters was analyzed, in...
journal_title：Epilepsy research
pub_type： 临床试验,杂志文章
doi：10.1016/s0920-1211(00)00097-8
更新日期：2000-05-01 00:00:00
abstract：:AWD 140-190 a potent new anticonvulsant was tested on several types of epileptiform activities in entorhinal cortex hippocampal slices. AWD 140-190 suppressed completely and in a dose-dependent manner spontaneous seizure-like events induced by lowering extracellular Ca2+. In the low magnesium model, AWD 140-190 applie...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(97)00066-1
更新日期：1997-12-01 00:00:00
abstract：:Although treatment of epilepsy easily evolves into a situation of overtreatment, reversing the process can be difficult and time consuming. Benefits of reducing overtreatment may include a decrease in side effects, better seizure control, a simplification in the medication regimen, improved compliance, and reduced cos...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/s0920-1211(02)00185-7
更新日期：2002-11-01 00:00:00
abstract：PURPOSE:Activation of the neurokinin-1 (NK1) receptor by neuropeptide substance P (SP) induces and maintains epileptic activity in various experimental models of epilepsy. The primary objective of this study was to investigate whether neurobiological changes linked to NK1-SP receptor system are associated with hyperexc...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2011.08.006
更新日期：2011-11-01 00:00:00
abstract：:The purpose of this study was to determine the influence of levetiracetam on the steady-state serum concentrations of other commonly used antiepileptic drugs (AEDs). Serum AED concentrations were measured at baseline and after adjunctive therapy with levetiracetam (1000-4000 mg/day) or placebo in four phase III trials...
journal_title：Epilepsy research
pub_type： 临床试验,杂志文章,meta分析,随机对照试验
doi：10.1016/j.eplepsyres.2005.01.005
更新日期：2005-03-01 00:00:00
abstract：:Pharmacoresistant mesial temporal lobe epilepsy (mTLE) represents the major indication for epilepsy surgery. Since epilepsy surgery is an elective treatment option, preserving cognition is a high priority. Given the essential role of temporomesial structures in declarative long-term memory formation, surgical treatmen...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2017.08.017
更新日期：2018-05-01 00:00:00
abstract：:Clinical practitioners have often observed in the course of their daily work that the pain thresholds of epileptic patients seem to differ from those of healthy subjects. These patients can suffer from quite severe traumatic lesions without apparently experiencing any pain. Since they are usually under treatment for e...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(92)90092-8
更新日期：1992-06-01 00:00:00
