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. The novel antiepileptic drug (AED) levetiracetam (LEV) is an effective and well tolerated drug in many patients with otherwise AED-refractory epilepsy. One explanation for the favorable efficacy of LEV in pharmacoresistant patients would be that LEV is not a substrate for Pgp or MRPs in the BBB. In the present study, we used in vivo microdialysis in rats to study whether the concentration of LEV in the extracellular fluid of the cerebral cortex can be modulated by inhibition of Pgp or MRPs, using the Pgp inhibitor verapamil and the MRP1/2 inhibitor probenecid. Local perfusion with verapamil or probenecid via the microdialysis probe did not increase the extracellular brain concentration of LEV, which is in contrast to various other AEDs which have been studied previously by the same experimental protocol in this model. The data indicate that brain uptake of LEV is not affected by Pgp or MRP1/2 which may be an important reason for its antiepileptic efficacy in patients whose seizures are poorly controlled by other AEDs.
journal_name
Epilepsy Resjournal_title
Epilepsy researchauthors
Potschka H,Baltes S,Löscher Wdoi
10.1016/j.eplepsyres.2003.12.007subject
Has Abstractpub_date
2004-02-01 00:00:00pages
85-91issue
2-3eissn
0920-1211issn
1872-6844pii
S0920121104000221journal_volume
58pub_type
杂志文章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：: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：:The objective of the study was to validate the Chinese version of The Liverpool Adverse Events Profile (LAEP) in patients with epilepsy. The scale was translated from the English version into a Chinese version and was then back-translated to examine its accuracy. Content validity, concurrent validity, and construct va...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2011.01.008
更新日期：2011-03-01 00:00:00
abstract：:The aim of this study was to assess the anticonvulsant effect of carbon dioxide (CO2) on Scn1a mutation-related febrile seizures. We examined physiological changes in the blood gas levels after the induction of hyperthermia-induced seizures (HISs), which were associated with the Scn1a missense mutation. We determined ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2013.01.003
更新日期：2013-07-01 00:00:00
abstract：PURPOSE:To identify consistent results of voxel-based morphometry (VBM) studies in unilateral refractory temporal lobe epilepsy (TLE). METHODS:Whole-brain VBM studies comparing refractory TLE patients with healthy controls (HC) were systematically searched in PubMed, ISI Web of Science, Embase, and Medline databases f...
journal_title：Epilepsy research
pub_type： 杂志文章,meta分析,评审
doi：10.1016/j.eplepsyres.2011.10.002
更新日期：2012-02-01 00:00:00
abstract：:Recent years have witnessed an increased interest from pediatric neurologists, neuropediatricians, epileptologists and general neurologists in the use of the ketogenic diet (KD) for the management of refractory epilepsies, particularly in children and adolescents. This article summarizes current knowledge on various i...
journal_title：Epilepsy research
pub_type： 共识发展会议,杂志文章
doi：10.1016/j.eplepsyres.2005.10.003
更新日期：2006-02-01 00:00:00
abstract：:We hypothesized and found that the co-occurrence of migraine with aura (MA) with major depression (MD) or with suicide attempt (SA) increases the risk for developing unprovoked seizure more than these conditions alone. Number of conditions showed a linear relationship to seizure risk. This may reflect a new condition ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2007.05.001
更新日期：2007-07-01 00:00:00
abstract：:Mutations in voltage-gated sodium channel genes cause several types of human epilepsies. Often, individuals with the same sodium channel mutation exhibit diverse phenotypes. This suggests that factors beyond the primary mutation influence disease severity, including genetic modifiers. Mouse epilepsy models with voltag...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2015.11.016
更新日期：2016-01-01 00:00:00
abstract：:The role of N-methyl-D-aspartate (NMDA) in the development and expression of kindled seizures was assessed using a crossover design. Rats were stimulated once daily in the perforant path for 10 consecutive days 30 min following daily administration of saline or the NMDA antagonist MK-801 (1.0 mg/kg) (phase I). Five to...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(94)90014-0
更新日期：1994-02-01 00:00:00
abstract：:An intravenous formulation of carbamazepine (CBZ) was administered to 113 (60 male; 53 female) persons with epilepsy aged 19-87 years. Subjects received 100mg of study drug as replacement for 100mg of their usual morning dose of CBZ. There were no significant changes in blood pressure or heart rate suggesting that thi...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2009.01.013
更新日期：2009-04-01 00:00:00
abstract：:Interactions of subclinical epileptiform EEG discharges and cognitive functioning were studied in 91 patients with epilepsy, under video monitoring, to exclude overt clinical ictal phenomena during the investigations. A short-term memory test was presented as an engaging television game, in two versions, using spatial...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(87)90031-3
更新日期：1987-07-01 00:00:00
abstract：:We retrospectively analyzed published studies to investigate historical trends in outcome of childhood absence epilepsy (CAE). We included patients based on onset of absence seizures in childhood, 3 Hz bilateral spike-wave discharges on EEG, and availability of seizure-free outcome data. The primary endpoint was seizu...
journal_title：Epilepsy research
pub_type： 历史文章,杂志文章,meta分析
doi：10.1016/j.eplepsyres.2019.02.013
更新日期：2019-05-01 00:00:00
abstract：SUMMARY:Metabotropic glutamate receptors (mGluR) may represent a perspective target for anticonvulsant therapy but spectrum of their anticonvulsant effects is not sufficiently known. Our study was aimed at comparison of anticonvulsant actions of antagonists of mGluR1 and mGluR5 subtypes in immature rats. Seven-, 12-, 1...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2008.11.004
更新日期：2009-02-01 00:00:00
abstract：:A strain of Wistar rats, genetic absence epilepsy rats from Strasbourg (GAERS), was selected and inbred over 40 generations for occurrence of spontaneous spike-wave discharges characteristic of absence seizures, simultaneously with a strain of non-epileptic rats (NER). GAERS demonstrate an excessive sensitivity to ant...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(01)00292-3
更新日期：2001-11-01 00:00:00
abstract：BACKGROUND:Due to pharmacoresistant seizures and the underutilization of surgical treatments, a large number of temporal lobe epilepsy (TLE) patients experience seizures for years or decades. The goal of this study was to generate a predictive model of duration of disease with the least number of parameters possible in...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2014.12.006
更新日期：2015-02-01 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：PURPOSE:Recent analyses provided evidence that human adult cerebrospinal fluid (CSF) in addition to soluble proteins also contains membrane particles that moreover carry the somatic stem cell marker CD133. The significance of CD133 as a potential marker of cellular proliferation, including neurogenesis, remains unresol...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2011.10.029
更新日期：2012-03-01 00:00:00
abstract：:Serum levels of prolactin may increase as a consequence of epileptic seizures. The hormone release is caused by the propagation of epileptic activity, usually from the temporal lobe to the hypothalamic-pituitary axis. Due to the intensity of the epileptic afterdischarge, a rise is seen in approximately 60% of complex ...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/0920-1211(96)00009-5
更新日期：1996-05-01 00:00:00
abstract：:We planned this study to investigate the frequency of epilepsy in paralytic polio survivors. We analyzed the clinical data of 91 paralytic polio survivors. Patients who had been diagnosed with epilepsy were examined by electroencephalography and brain magnetic resonance imaging. 11 of the 91 patients had epilepsy (12%...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2011.08.019
更新日期：2012-01-01 00:00:00
abstract：:Interruption of neurogenesis and/or neuronal migration produces brain dysplasia modifying susceptibility to epileptic seizures in adulthood. The course of neurogenesis has a strictly defined time-table. Consequently, the developmental stage at which the interruption occurs determines what functional subsystem potentia...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2005.09.006
更新日期：2005-12-01 00:00:00
abstract：:The effects of systemic pretreatment with morphine sulfate (MS) on electroencephalographic (EEG) manifestations of seizures due to bicuculline (BIC) were studied in freely moving rats. Electrodes were placed on frontal and occipital cortices, into the hippocampus and into a region of the prepiriform cortex, area tempe...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(89)90012-0
更新日期：1989-09-01 00:00:00
abstract：OBJECTIVE:Focal cortical dysplasia (FCD) is able to generate an intrinsic pathological EEG activity characterized by a continuous or near-continuous spiking. Different patterns of discharge were described. We examined quantitatively the distribution of the intracerebral FCD patterns in relation to sleep in order to inv...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2015.03.014
更新日期：2015-07-01 00:00:00
abstract：PURPOSE:Ictal magenetoencephalographic (MEG) discharges convey significant information about ictal onset and propagation, but there is no established method for analyzing ictal MEG. This study sought to clarify the usefulness of time-frequency analyses using short-time Fourier transform (STFT) for ictal onset and propa...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2010.05.001
更新日期：2010-08-01 00:00:00
abstract：PURPOSE:We retrospectively analyzed the seizure characteristics, EEG pattern, treatment, and outcome in a series of patients with self-limited epilepsy with centrotemporal spikes (SLECTS) who presented with unusual clinical manifestations. METHOD:A retrospective, descriptive, multicenter study was conducted evaluating...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2020.106507
更新日期：2021-01-01 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：:Daily treatment of mice with diazepam leads to the development of tolerance to the anxiolytic and anticonvulsant effect of the benzodiazepine, while daily treatment with the proconvulsant benzodiazepine receptor inverse agonist FG 7142 produces sensitization to its effects in that seizures develop (chemical kindling)....
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(88)90016-2
更新日期：1988-07-01 00:00:00
abstract：:Paroxysmal kinesigenic dyskinesia (PKD) is a rare neurologic inherited disease with heterogeneity. Autosomal dominant (AD) is the common inherited mode. There have been two loci mapped to 16 chromosome for PKD. However, no gene responsible for it has been identified so far. We collected 6 pedigrees from Chinese mainla...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2008.04.012
更新日期：2008-08-01 00:00:00
abstract：:The epileptic baboon provides a natural model of idiopathic generalized epilepsy and sudden unexpected death in epilepsy (SUDEP). We sought to evaluate autonomic differences, including heart rate (HR), heart rate variability (HRV) and corrected QT-duration (QTc) between two epileptic (EB1, EB2) and one control (CB) ba...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2019.106156
更新日期：2019-09-01 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：AIM:Seizures originating from the parietal lobe can demonstrate variable semiology. Our aim was to describe the electroclinical features of seizures originating from the mesial parietal lobe. METHOD:We identified four patients through the Comprehensive Epilepsy Program at our institution, who had strong evidence of a ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2014.09.011
更新日期：2014-12-01 00:00:00
