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 the treatment of convulsive states. In the current study we investigated the effect of the systemic Vitamin E administration, an antioxidant, on the convulsions and oxidative damage induced by two convulsant agents with different mechanisms of action: methylmalonic acid (MMA), which induces convulsions through energy depletion and secondary activation of glutamatergic mechanisms and ROS production and pentylenetetrazol (PTZ), which is a chemical convulsant that causes convulsions by blocking the GABAA receptor-coupled chloride ionophore. Adult male Wistar rats (270-300 g) were injected with vehicle (5% Tween 80 in 0.9% NaCl; 1 ml/kg, i.p.) or alpha-tocopherol (25, 75 or 225 mg/kg, i.p.), once a day for 7 days. On the seventh day of antioxidant treatment, the animals were injected with the antioxidant (or vehicle) and, 30 min later, they were intrastriatally injected with NaCl (9 micromol/2 microl) or with MMA (6 micromol/2 microl) or PTZ (3.26 mmicromol/2 microl). The animals were observed for the appearance of convulsive behavior and the striatal content of thiobarbituric acid-reactive substances (TBARS) and total protein carbonylation were determined. Intrastriatal injection of increasing amounts of PTZ and of MMA caused the appearance of convulsive behavior. PTZ- and MMA-induced convulsions, TBARS production and total protein carbonylation were attenuated by alpha-tocopherol in a dose-dependent manner.
journal_name
Epilepsy Resjournal_title
Epilepsy researchauthors
Ribeiro MC,de Avila DS,Schneider CY,Hermes FS,Furian AF,Oliveira MS,Rubin MA,Lehmann M,Krieglstein J,Mello CFdoi
10.1016/j.eplepsyres.2005.08.005subject
Has Abstractpub_date
2005-08-01 00:00:00pages
185-94issue
1-3eissn
0920-1211issn
1872-6844pii
S0920-1211(05)00175-0journal_volume
66pub_type
杂志文章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：:In rats with electrodes implanted in the hippocampus or amygdala, the effect was studied of a single episode of low frequency stimulation (125 msec, biphasic 4 Hz, for 1 min at a current 50% of threshold for after-discharge), LFS, on the after-discharge thresholds (ADTs) during the course of hippocampal and amygdaloid...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(89)90029-6
更新日期：1989-05-01 00:00:00
abstract：:The idiopathic generalized epilepsies (IGE), for which a genetic cause is widely accepted, account for 20-30% of all epilepsies. Mapping these epilepsies is difficult, but progress in the positional cloning of idiopathic epilepsy genes responsible for monogenic forms provide emerging evidence that many idiopathic epil...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2003.09.002
更新日期：2003-10-01 00:00:00
abstract：:Biochemical studies have indicated that norepinephrine is present in lower levels in certain brain regions of genetically epilepsy-prone rats (GEPR-9s) as compared to non-epileptic Sprague-Dawley (SD) rats. In this study, the immunocytochemical localization of dopamine beta-hydroxylase (DBH), the synthesizing enzyme f...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(89)90001-6
更新日期：1989-11-01 00:00:00
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 bet...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2009.12.005
更新日期：2010-05-01 00:00:00
abstract：PURPOSE:To discern more static and lesion based from more dynamic epilepsy-driven features of depression and personality in focal symptomatic epilepsy, change in personality and mood was examined as a function of focus lateralization and seizure outcome after epilepsy surgery. METHODS:Self-reported personality and dep...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2008.07.011
更新日期：2008-12-01 00:00:00
abstract：PURPOSE:To evaluate if the duration of epilepsy influences MRI volumes of the hippocampus, amygdala, parahippocampal gyrus, entorhinal cortex and temporal pole of both hemispheres and epileptogenic hippocampus neuronal cell density and dentate gyrus granular cells distribution in patients with refractory mesial tempora...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2018.08.009
更新日期：2018-11-01 00:00:00
abstract：:The purpose of the study was to evaluate the efficacy and safety of topiramate (TPM) as adjunctive therapy in children, adolescents and young adults with Lennox-Gastaut syndrome (LGS). We performed a prospective open label add-on study in 45 patients (age 4-34 years, mean 15.9 years) with LGS and refractory seizures. ...
journal_title：Epilepsy research
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1016/s0920-1211(02)00103-1
更新日期：2002-09-01 00:00:00
abstract：:There is increasing clinical and experimental evidence that hormones, in particular sex steroid hormones, influence neuronal excitability and other brain functions. The term 'neuroactive steroids' has been coined for steroids that interact with neurotransmitter receptors. One of the best characterized actions of neuro...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/s0920-1211(01)00194-2
更新日期：2001-05-01 00:00:00
abstract：:In this second paper the clinical features and electrophysiological underpinnings of more complex psychotic states associated with epilepsy are reviewed. (a) Complex partial status epilepticus, in particular of temporal lobe origin, may result in mental states remarkably similar to those seen in the primary psychoses....
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2009.03.017
更新日期：2009-08-01 00:00:00
abstract：:Chemical kindling, as an experimental model of epileptogenesis, is induced by repetitive administration of subconvulsive amount of excitatory drugs. Kindled mice do not typically display spontaneous recurrent seizures, but are instead characterized by enhanced seizure susceptibility to convulsive stimulations. In orde...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2013.10.019
更新日期：2014-01-01 00:00:00
abstract：:Two hundred and thirty-five patients suffering from newly diagnosed epilepsy were randomly allocated to treatment with either oxcarbazepine or carbamazepine in a double-blind multi-centre study. After a titration phase (between 4 and 8 weeks), the optimal individual dose of trial medication was determined and treatmen...
journal_title：Epilepsy research
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0920-1211(89)90070-3
更新日期：1989-01-01 00:00:00
abstract：OBJECTIVE:To improve the interpretability of figures containing an amplitude-integrated electroencephalogram (aEEG), we devised a color scale that allows us to incorporate spectral edge frequency (SEF) information into aEEG figures. Preliminary clinical assessment of this novel technique, which we call aEEG/SEF, was pe...
journal_title：Epilepsy research
pub_type： 临床试验,杂志文章
doi：10.1016/j.eplepsyres.2011.06.012
更新日期：2011-10-01 00:00:00
abstract：:Neuropeptide Y (NPY) and galanin are neuropeptides that are regulated by energy states and are also anticonvulsant. We tested the hypothesis that the anticonvulsant efficacy of the ketogenic diet (KD) is mediated by increased expression of NPY and galanin via alterations in food intake and energy metabolism. In situ h...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2004.08.002
更新日期：2004-11-01 00:00:00
abstract：:The purpose of this investigation was to inquire into the multietiological determinants of psychopathology and social competence in children with epilepsy. The relationship between behavioral functioning as assessed by the Child Behavior Checklist and a variety of biological, psychosocial, medication and demographic r...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(88)90010-1
更新日期：1988-01-01 00:00:00
abstract：SUMMARY:Autosomal dominant nocturnal frontal lobe epilepsy (ADNFLE) is known to be partly caused by mutations in the transmembrane domain (TM) 1-3 of the genes of the neuronal nicotinic acetylcholine receptor (nAChR) alpha4-subunit (CHRNA4), beta2-subunit (CHRNB2) and alpha2-subunit (CHRNA2). The more common cases of s...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2008.10.009
更新日期：2009-02-01 00:00:00
abstract：:Periventricular nodular heterotopia (PVNH) is a neuronal migrational disorder often associated with pharmacoresistant epilepsy (PRE). Resective surgery for PVNH is limited by its deep location, and the overlying eloquent cortex or white matter. Stereotactic MR guided laser interstitial thermal therapy (MRgLITT) has re...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2014.01.009
更新日期：2014-03-01 00:00:00
abstract：OBJECTIVE:To characterize, in adolescents aged 12-17, the pharmacokinetic (PK) profile of perampanel, the impact of intrinsic and extrinsic factors on PK, and the relationships between perampanel exposure and cognitive function, seizure frequency, and responder status. METHODS:Population PK analysis used plasma concen...
journal_title：Epilepsy research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.eplepsyres.2016.08.025
更新日期：2016-11-01 00:00:00
abstract：:The investigational anticonvulsant drug, gabapentin (GP; 1-(aminomethyl) cyclohexaneacetic acid) limited repetitive firing of sodium-dependent action potentials of mouse spinal cord and neocortical neurons in monolayer dissociated cell culture. The effect developed slowly over time with sustained exposure. The IC50 wa...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(94)90074-4
更新日期：1994-01-01 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：:Temporal lobe epilepsy (TLE) is the most common type of epilepsy with about one third of TLE patients being refractory to antiepileptic drugs. Knowledge about the mechanisms underlying seizure activity is fundamental to the discovery of new drug targets. Brain Na(+),K(+)-ATPase activity contributes to the maintenance ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2014.09.025
更新日期：2014-12-01 00:00:00
abstract：:The characteristics of evoked potentials in patients with dentatorubral-pallidoluysian atrophy (DRPLA) were investigated. Twelve patients with DRPLA and three patients with progressive myoclonic epilepsy (PME) attributable to other causes participated in the study. In 11 out of the 12 patients, the diagnosis of DRPLA ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(99)00028-5
更新日期：1999-10-01 00:00:00
abstract：:Aminergic signalling in the CNS is terminated by clearance of neurotransmitters from the synapse via high affinity transporter molecules in the presynaptic membrane. Relatively recent sequence identification of these molecules has now permitted the initiation of studies of regulation of transporter function at the cel...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/s0920-1211(99)00072-8
更新日期：1999-12-01 00:00:00
abstract：:Fits of audiogenic seizures in rodents are considered as a model for generalized convulsive epilepsies in humans. The laminar distribution of the H3 histamine receptor binding densities was quantified in the motor cortex of two strains of rats with genetically determined generalized epilepsies, namely KM rats with aud...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2020.106543
更新日期：2020-12-25 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：AIM:Vitamin D (Vit D) has been considered as a neurosteroid and has a pivotal role in neuroprotection including epilepsy. Vit D regulator acts via a Vit D receptor (VDR). WAG/Rij rats have a genetically epileptic model of absence epilepsy with comorbidity of depression. The aim of the present study was to investigate t...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2019.106208
更新日期：2019-11-01 00:00:00
abstract：:Familial frontal epilepsy has been recently described in six pedigrees. All families reported show autosomal dominant inheritance with incomplete penetrance. Affected individuals develop predominantly nocturnal seizures with frontal lobe semiology. In 1959, a genetic mouse model for partial epilepsy, the El mouse, was...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(95)00049-6
更新日期：1995-11-01 00:00:00
abstract：BACKGROUND:When pharmacotherapy for epilepsy fails, surgical options, although efficacious, are highly invasive. We explored whether ablation of the cerebral cortex can be performed utilizing the cerebral venous system. METHODS:Mapping and radiofrequency ablation was performed via the venous system in two pigs. RESUL...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2008.03.023
更新日期：2008-08-01 00:00:00
abstract：:The common features of all types of epilepsy are the synchronized and uncontrolled discharges of nerve cell assemblies. The reason for the pathologically synchronized discharges of the neuron is not exactly known yet. Recent reports claim that gap junctions have a critical role in neuronal synchronization. The present...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2006.06.010
更新日期：2006-10-01 00:00:00
abstract：:Involvement of opioid systems in the pathogenesis of absence epilepsy has been postulated. However, the role of the mu opioid receptor has not been fully elucidated as yet. In the present study the role of this receptor in absence epilepsy was investigated autoradiographically and pharmacologically. The density of mu ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(97)00081-8
更新日期：1998-01-01 00:00:00
