Abstract：
:Six anticonvulsant drugs, phenytoin (PHT), carbamazepine (CBZ), valproate (VPA), U-54494A, losigamone (LOS), and D-20443, were studied using rat hippocampal slices and standard electrophysiological techniques. The K+ channel blocker, 4-aminopyridine (4-AP), was used as neuronal stimulant. The extracellular parameters evaluated in areas CA3 and CA1 were: (1) interictal-type bursting, (2) evoked population spike (PS) amplitude, (3) latency to PS onset, and (4) duration of the excitatory postsynaptic potential (EPSP). VPA was ineffective in altering any of the parameters. PHT and CBZ partially reversed the increase in EPSP duration produced by 4-AP in area CA3, while the spontaneous bursting was not affected. The experimental drugs, U-54494A, LOS, and D-20443 (dihydrochloride salt of D-23129 from Asta Medica), tended to reverse to varying degrees the 4-AP effects, especially the increase in the EPSP duration. U-54494A tended to depress responses even under control conditions. LOS partially reversed the 4-AP excitation, but abolished bursting in only one of five slices. D-20443 abolished bursting in all slices. It also partially reversed the 4-AP induced increase in the EPSP duration without depressing the normal evoked potential. The results show that 4-AP induced changes in vitro can help differentiate drugs with similar in vivo spectrums of anticonvulsant activity. While the drug induced changes may not truly define the mechanisms of action of these promising new agents, these experimental anticonvulsants can be differentiated from standard agents using the experimental paradigm in this study.
journal_name
Epilepsy Resjournal_title
Epilepsy researchauthors
Yonekawa WD,Kapetanovic IM,Kupferberg HJdoi
10.1016/0920-1211(94)00077-asubject
Has Abstractpub_date
1995-02-01 00:00:00pages
137-50issue
2eissn
0920-1211issn
1872-6844pii
0920-1211(94)00077-Ajournal_volume
20pub_type
杂志文章abstract：:The subjects were 106 SMIDS with epilepsy. They were classified into four epileptic syndromes: (1) SE-MISF (34.0%), (2) SGE (25.5%), (3) SLRE (20.7%), and (4) epileptic discharge-free patients (EDFP) (19.8%). Clinical electroencephalographic studies elucidated the following result: (1) The seizure disappearance rate w...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2007.09.006
更新日期：2007-12-01 00:00:00
abstract：:The development of epilepsy and a progressive increase in susceptibility to seizures may involve changes in inhibitory and excitatory systems from the beginning of the process. The present study was focused to analyze the opioid peptide changes induced by a chemical sub-convulsant stimulation. Experiments were carried...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(99)00056-x
更新日期：1999-11-01 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：: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：: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：:We aim to investigate structural brain abnormalities in juvenile myoclonic epilepsy (JME) patients with photosensitivity (PS). Sixty JME patients, 19 (32%) of whom were photosensitive, were submitted to 1.5T magnetic resonance voxel-based morphometry (VBM). The control group (CTL) consisted of 30 sex-matched healthy v...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2009.05.016
更新日期：2009-10-01 00:00:00
abstract：:The Fourth Eilat Conference on New Antiepileptic Drugs (AEDs) was held at the Royal Beach Hotel, Eilat, Israel, from 6th to 10th September 1998. Epileptologists and scientists from 20 countries attended the conference, which was held to discuss a number of issues in drug development, including outcome assessment in ep...
journal_title：Epilepsy research
pub_type：
doi：10.1016/s0920-1211(98)00108-9
更新日期：1999-03-01 00:00:00
abstract：:Sodium valproate is a drug widely used for the treatment of epilepsy and mood disorders. We studied the effect of valproate on cerebral energy metabolism by incubating rat brain slices with 5 mM [3-(13)C]glutamate in the absence and the presence of 1 mM valproate. Substrate removal and product formation were measured ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2011.10.028
更新日期：2012-03-01 00:00:00
abstract：:The present study intends to identify factors that predict postoperative clinical outcome in patients with gangliogliomas (GG) and dysembryoplastic neuroepithelial tumors (DNT). We evaluated the medical records of 45 patients with GG and 13 patients with DNT, treated surgically between 1985 and 1995. We assessed sever...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(00)00208-4
更新日期：2001-03-01 00:00:00
abstract：:Mutations of genes coding for ion channels cause several genetically determined human epileptic syndromes. The identification of a gene variant linked to a particular disease gives important information, but it is usually necessary to perform functional studies in order to completely disclose the pathogenic mechanisms...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2010.08.003
更新日期：2010-11-01 00:00:00
abstract：BACKGROUND:Epilepsy is among the more stigmatising diseases, leading to a negative impact on the quality of life (QoL) of people with epilepsy (PWE). Assessment of the QoL and stigma in PWE reflects the outcome of their disease, and the findings can be used to improve the management of epilepsy. To fill a gap in the li...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2020.106437
更新日期：2020-11-01 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：:Previous studies have demonstrated that remacemide and its desglycinyl metabolite, AR-R 2495AA, reduce neuronal damage in animal models of ischemia, subarachnoid hemorrhage, and traumatic brain injury. The aim of the present study was to investigate whether remacemide hydrochloride also alleviates seizure-induced neur...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/s0920-1211(98)00122-3
更新日期：1999-04-01 00:00:00
abstract：PURPOSE:To determine the minimum enrollment duration for identifying incident cases of epilepsy in administrative data. METHODS:We performed a retrospective dynamic cohort study using Ohio Medicaid data from 1992 to 2006 to identify a total of 5037 incident epilepsy cases who had at least 1 year of follow-up prior to ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2013.05.005
更新日期：2013-09-01 00:00:00
abstract：:Food intake triggers convulsions in fasted BALB/c mice and Wistar albino rats treated with antimuscarinic drugs, scopolamine or atropine. Inbred strain studies have yielded considerable information regarding genetic influences on seizure susceptibility and factors contribute to epileptogenesis in rodents. This study, ...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2015.03.001
更新日期：2015-05-01 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：:Evidence-based treatment guidelines and practice parameters have been developed in most areas of medicine. They are important because insurance companies, formulary managers, and health maintenance organizations rely on guidelines for formulary and coverage decisions. The methodology for practice parameter development...
journal_title：Epilepsy research
pub_type： 杂志文章,评审
doi：10.1016/j.eplepsyres.2005.09.021
更新日期：2006-01-01 00:00:00
abstract：:The anticonvulsant activities of a noncompetitive (GYKI 52466) and a competitive (NBQX) AMPA/kainate antagonist were compared in the maximal electroshock (MES) seizure test and various chemoconvulsant models. Both antagonists were protective in the MES and pentylenetetrazol tests. GYKI 52466 was also protective agains...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(93)90054-b
更新日期：1993-07-01 00:00:00
abstract：:Metalloproteinase 9 (MMP9) is a member of a family of enzymes that mediate the degradation of extracellular matrix proteins, and is especially involved in blood-brain barrier maintenance. Increased levels of MMP9 have been observed in many neurological disorders, including epilepsy, suggesting it may be involved in th...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2016.11.006
更新日期：2017-01-01 00:00:00
abstract：:Granule cell dispersion (GCD), a structural abnormality, is characteristic of temporal lobe epilepsy (TLE). Eugenol (EUG) is an essential component of medicinal herbs and is suggested to exert anticonvulsant activity. However, it is unclear whether EUG ameliorates the abnormal morphological changes in granule cells in...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2015.06.001
更新日期：2015-09-01 00:00:00
abstract：INTRODUCTION:Epilepsy surgery is an effective treatment for refractory focal epilepsy. Risks of surgery need to be considered when advising individuals of treatment options. We describe the frequency and nature of physical adverse events associated with epilepsy surgery in a single center. MATERIAL AND METHODS:We revi...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2017.02.016
更新日期：2017-05-01 00:00:00
abstract：:Benzodiazepines (BDZs) are GABA(A) receptor modulators with anxiolytic, hypnotic, and anticonvulsant properties. BDZs are understood to potentiate GABA(A) receptor function by increasing channel opening frequency, in contrast to barbiturates, which increase channel open duration. However, the in vitro evidence demonst...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2009.03.007
更新日期：2009-08-01 00:00:00
abstract：:Seizures induced by the convulsant methionine sulfoximine (MSO) resemble human "grand mal" epilepsy, and brain glutamine synthetase is inhibited. We recently selected two inbred lines of mice: sensitive to MSO (MSO-Fast) and resistant (MSO-Slow). In the present study, the selection pressure was increased and consangui...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2011.08.012
更新日期：2012-01-01 00:00:00
abstract：:Dapsone (4,4'-diaminodiphenyl sulfone; DDS), an established anti-leprosy drug, showed anticonvulsive effects in the amygdaloid kindling model of epilepsy. Single doses of the drug in rats (6.25-12.5 mg/kg, i.p.) suppressed the kindled seizures in a dose-dependent manner without overt behavioral toxicity. With repeated...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(91)90001-v
更新日期：1991-11-01 00:00:00
abstract：:Ketamine, a noncompetitive N-methyl-D-aspartate receptor (NMDAR) antagonist, used as an anesthetic has been reported to induce seizures both in humans and baboons predisposed to epilepsy. In this study, we aimed to characterize the acute effects of ketamine on scalp (sc-EEG) and intracranial EEG (ic-EEG) in the baboon...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2019.04.008
更新日期：2019-08-01 00:00:00
abstract：:A battery of psychometric tests was administered to 110 patients with epilepsy and to 24 non-epileptic controls. Eighty-four patients had been established on treatment with a single anticonvulsant drug (35 carbamazepine (CBZ), 30 sodium valproate (VPA), 19 phenytoin (PHT)) at unaltered dosage for the previous 3 months...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/0920-1211(90)90018-q
更新日期：1990-12-01 00:00:00
abstract：BACKGROUND:Little is known, so far, about the cerebral structural abnormalities in drug-naïve patients with childhood absence epilepsy (CAE). We aimed to investigate regional grey matter (GM) volume differences using voxel-based morphometry (VBM) in patients and closely matched healthy control subjects. METHODS:Twenty...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2016.05.003
更新日期：2016-08-01 00:00:00
abstract：:The ideal proof-of-principle study design provides a strong efficacy signal over the shortest duration, while exposing the fewest patients possible. Data from a large database (Pfizer Inc) which studied add-on pregabalin for the treatment of partial seizures was used to model how duration of baseline, post-randomizati...
journal_title：Epilepsy research
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.eplepsyres.2013.04.008
更新日期：2013-09-01 00:00:00
abstract：BACKGROUND:People with epilepsy may experience an altered pattern of mortality due to cancer. We determined cancer mortality in two distinct populations with epilepsy: (i) an institutionalised cohort with severe epilepsy (SEC) and (ii) another cohort with presumed milder epilepsy (MEC). METHODS:Mortality data from 197...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2008.11.001
更新日期：2009-02-01 00:00:00
abstract：OBJECTIVE:To validate the Chinese version of the Generalized Anxiety Disorder-7 (GAD-7) in Chinese people with epilepsy (PWE). METHODS:A consecutive cohort of PWE from the West China Hospital was recruited. Each patient received a psychiatric evaluation comprising the Mini International Neuropsychiatric Interview (MIN...
journal_title：Epilepsy research
pub_type： 杂志文章
doi：10.1016/j.eplepsyres.2015.11.019
更新日期：2016-02-01 00:00:00
