Abstract:
:The effect of magnesium-free medium on electrical and CaM kinase II activity in the rat hippocampal slice was examined. Experimental slices were incubated in 2 mM Mg, then exposed to magnesium-free medium for 1 h. Control slices were concurrently run in 2 mM Mg. Slices were then frozen and CaM kinase II activity was measured in homogenates. Exposure of hippocampal slices to magnesium-free medium resulted in spontaneous epileptiform activity and a concurrent 38 +/- 5.47% decrease in CaM kinase II activity (range 38.8-75.4% of control; n = 7, P less than 0.001, paired Student's t test). The decrease in CaM kinase II activity was not reversible by treatment with protein phosphatases 1 and 2A (58.8 +/- 4.77% of control activity; range 28.6-69.7, P less than 0.01, paired Student's t-test), indicating that the decrease in CaM kinase II activity cannot be accounted for exclusively by autophosphorylation. The results demonstrate that magnesium-free medium treatment can induce spontaneous epileptiform activity and simultaneous changes in CaM kinase II activity.
journal_name
Epilepsy Resjournal_title
Epilepsy researchauthors
Churn SB,Anderson WW,DeLorenzo RJdoi
10.1016/0920-1211(91)90054-jsubject
Has Abstractpub_date
1991-09-01 00:00:00pages
211-7issue
3eissn
0920-1211issn
1872-6844pii
0920-1211(91)90054-Jjournal_volume
9pub_type
杂志文章abstract::Single photon emission computed tomography (SPECT) has frequently been used to investigate cerebral brain perfusion (CBP) occurring ictally and inter-ictally in epileptic patients. Several studies have addressed the multimodal analysis of the modifications occurring in cerebral areas involved in seizure activity, by c...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/s0920-1211(00)00111-x
更新日期:2000-06-01 00:00:00
abstract::Levetiracetam (LEV), a newer antiepileptic drug (AED) useful for several epilepsy syndromes, binds to SV2A. Identifying genetic variants that influence response to LEV may allow more tailored use of LEV. Obvious candidate genes are SV2A, SV2B and SV2C, which encode the only known binding site, synaptic vesicle protein...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2008.09.003
更新日期:2009-01-01 00:00:00
abstract::Temporal lobe epilepsy (TLE) has been modeled in mice using pilocarpine induction, with variable results depending on specific strains. To allow efficient xenotransplantation for the purpose of optimizing potential cell-based therapy of human TLE, we have determined the optimal dosing strategy to produce spontaneous r...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2014.10.016
更新日期:2015-01-01 00:00:00
abstract::Brain slices from adult rats that included ventral hippocampus and adjacent parahippocampal areas were studied at various sites for the appearance of epileptiform discharges as extracellular potassium ([K+]o) was systematically varied over the range of 3 mM to 10 mM. The development of evoked epileptiform discharges (...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/0920-1211(93)90043-7
更新日期:1993-03-01 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::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::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:BACKGROUND:In many parts of eastern Asia, rice is a dietary staple and therefore the ketogenic diet (KD) can be difficult to administer. The aim of this study was to assess the long-term effectiveness and tolerability of the classical KD using a 2:1 ratio of fat to protein plus net carbohydrates, which is lower than th...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2018.09.002
更新日期:2018-11-01 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
abstract::The compound 5-(4-chlorophenyl)-2,4-dihydro-4-ethyl-3H-1,2,4-triazol-3-one (MDL 27,192) was evaluated in a variety of rodent models to assess its anticonvulsant profile and its potential neuroprotective activity. MDL 27,192 demonstrated anticonvulsant activity in a wide range of epilepsy models that are genetically-ba...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/s0920-1211(96)01020-0
更新日期:1997-04-01 00:00:00
abstract:PURPOSE:To analyze electroclinical features of absence seizures during sleep. PRINCIPAL RESULTS:30 children with genetic generalized epilepsy had 52 paroxysms of GSW >2s during sleep. 18/52 (35%) demonstrated a clinical sign. Ictal GSW lasted an average of 6.5s. CONCLUSION:Motor manifestations are seen during GSW>2s ...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2010.12.009
更新日期:2011-02-01 00:00:00
abstract::Post-stroke paroxysmal activity is a neurophysiological indicator of epileptogenesis and increase of seizure susceptibility, so treatments with neuroprotective activity and anti-paroxysmal activity can be more beneficial during post-ischemic period. The goal of this study was evaluation of levetiracetam (100 mg/kg, 7 ...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2020.106466
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:We performed targeted gene-panel sequencing for children with developmental and epileptic encephalopathy (DEE) and evaluated the clinical implications of genotype-phenotype correlations. METHODS:We assessed 278 children with DEE using a customized gene panel that included 172 genes, and extensively reviewed ...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2018.02.003
更新日期:2018-03-01 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::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:To assess subjective seizure anticipation in patients with focal and generalized epilepsy. METHODS:Five hundred consecutively recruited out-patients (251 male, 249 female, mean age 38.1 year) from three German tertiary epilepsy referral centres filled out questionnaires regarding subjective anticipation of sei...
journal_title:Epilepsy research
pub_type: 杂志文章,多中心研究
doi:10.1016/j.eplepsyres.2006.02.001
更新日期:2006-07-01 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::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::This paper reports the first systematic review of uncommon causes of status epilepticus reported in the literature between 1990 and 2008. Uncommon causes are defined as those not listed in the main epidemiological studies of status epilepticus. 181 causes were identified. These were easily categorised into 5 specific ...
journal_title:Epilepsy research
pub_type: 杂志文章,评审
doi:10.1016/j.eplepsyres.2010.07.015
更新日期:2010-10-01 00:00:00
abstract::The monoamine content in cerebral structures has been related to neuronal excitability and several approaches have been used to study this phenomenon during seizure vulnerability. In the present work, we have described the effects of serotonin (5-HT) depletion after the administration of 5,7-dihydroxytryptamine (5,7-D...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2008.08.010
更新日期:2008-12-01 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::Resting motor threshold (rMT) assessed by means of Transcranial Magnetic Stimulation (TMS) is thought to reflect trans-synaptic excitability of cortico-spinal neurons. TMS studies reporting rMT in idiopathic generalized epilepsies (IGEs) yielded discrepant results, so that it is difficult to draw a definitive conclusi...
journal_title:Epilepsy research
pub_type: 杂志文章,meta分析,评审
doi:10.1016/j.eplepsyres.2012.03.020
更新日期:2012-08-01 00:00:00
abstract::The prevailing understanding of generalized epilepsy is shaped by the traditional definition that "the responsible neuronal discharge takes place, if not throughout the entire grey matter, then at least in the greater part of it and simultaneously on both sides". This view is no longer tenable since concurrent finding...
journal_title:Epilepsy research
pub_type: 杂志文章,评审
doi:10.1016/j.eplepsyres.2015.04.008
更新日期:2015-08-01 00:00:00
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:PURPOSE:Hippocampal sclerosis (HS) is the most common pathology in mesial temporal lobe epilepsy (MTLE). There are a few reports concerning prognosis in patients with MTLE-HS treated medically. The study was carried out to determine the clinical risk factors affecting prognosis. METHODS:We enrolled 287 patients with M...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2009.03.001
更新日期:2009-08-01 00:00:00
abstract::Absence seizures are thought to be linked to abnormal interplays between regions of a thalamocortical network. However, the complexity of this widespread network makes characterizing the functional interactions among various brain regions challenging. Using whole-brain functional connectivity and network analysis of m...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2018.06.001
更新日期:2018-09-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to determine the histological effects of valproic acid (VPA) on the penis in prepubertal rats. METHODS:Twelve male Wistar rats (21-24 days old) were divided equally into 2 experimental groups, and given tap water (control group) or 300mg/kg/day VPA via gavage for 30 days. After t...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2011.12.010
更新日期:2012-05-01 00:00:00
abstract::Novel treatments for epilepsy are necessary because many epilepsy patients are resistant to medication. Metabotropic glutamate receptors (mGluRs), specifically mGluR 2 and 3, may serve as antiepileptic drug targets because of their role in controlling synaptic release. In this study, we administered a Group 2 mGluR ag...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2013.10.009
更新日期:2014-02-01 00:00:00
abstract:PURPOSE:To study the extent and characteristics of dietary and herbal supplements use in a large cohort of adult patients with epilepsy. METHODS:This prospective study included 490 patients receiving care at a university epilepsy clinic. A number of variables, including demographics, characteristics of epilepsy and it...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2019.106168
更新日期:2019-10-01 00:00:00
abstract::Glutamic acid decarboxylase autoantibodies (GADA) and anti-cardiolipin autoantibodies (ACA) have been detected in adult subjects with epilepsy, though the functional implications of these findings are a matter of debate. This study aimed to determine the prevalence of GADA and ACA and to investigate their clinical sig...
journal_title:Epilepsy research
pub_type: 杂志文章
doi:10.1016/j.eplepsyres.2013.02.009
更新日期:2013-07-01 00:00:00