Alterations in hippocampal voltage-gated calcium channel alpha 1 subunit expression patterns after kainate-induced status epilepticus in aging rats.

Abstract:

:Young adult and aged male Fisher 344 rats underwent kainate-induced convulsive status epilepticus (SE) for 4 h prior to sacrifice to determine potential aging-related differences in the effect of prolonged SE on the expression of hippocampal voltage-gated calcium channels (VGCCs). Immunohistochemistry was performed on hippocampal sections using antibodies directed against the alpha1 subunit of class A-D VGCCs. Compared to age-matched controls, SE animals showed a marked loss of alpha1A immunoreactivity (IR) in CA3 and the hilus, which was more prominent in aged animals. Alpha1B-IR was decreased selectively in the stratum lucidum of CA3. Alpha1C-IR was increased on neuronal somata in the pyramidal and granule cell layers of both age groups. In contrast, there was a marked decrease of alpha1C-IR in the neuropil of CA3 stratum pyramidale and portions of CA1, which was more pronounced in aged animals. Alpha1D-IR was decreased in CA3 and the hilus, which was more prominent in aged animals. Nissl staining demonstrated mild somal dysmorphia in the pyramidal cell layer of CA3, which was more apparent in aged animals. Fluoro-Jade B staining was prominent in the stratum pyramidale of CA3 and in the hilus of aged SE animals. These results demonstrated that expression patterns of hippocampal high-threshold VGCC alpha1 subunits were altered variably during prolonged convulsive SE and were associated with prominent early degenerative changes in aged neurons in CA3 and the hilus.

journal_name

Epilepsy Res

journal_title

Epilepsy research

authors

Kelly KM,Ikonomovic MD,Abrahamson EE,Kharlamov EA,Hentosz TM,Armstrong DM

doi

10.1016/j.eplepsyres.2003.10.007

subject

Has Abstract

pub_date

2003-11-01 00:00:00

pages

15-32

issue

1

eissn

0920-1211

issn

1872-6844

pii

S0920121103001839

journal_volume

57

pub_type

杂志文章
  • No effect of 50 Hz magnetic field observed in a pilot study on pentylenetetrazol-induced seizures and mortality in mice.

    abstract::This study was planned so as to evaluate whether magnetic field exposure has any significant effect on the pentylenetetrazol (PTZ)-induced seizures. Mice were exposed to 50 Hz, 2 G (0.2 mT) magnetic field in glass cages for 1 h. Sham exposure was produced by turning off the current while the animals were in the same e...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/s0920-1211(00)00193-5

    authors: Keskil IS,Keskil ZA,Canseven AG,Seyhan N

    更新日期:2001-04-01 00:00:00

  • Epilepsy and prolactin in adults: a clinical review.

    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

    authors: Bauer J

    更新日期:1996-05-01 00:00:00

  • Remacemide HCl and its metabolite, FPL 12495AA, limit action potential firing frequency and block NMDA responses of mouse spinal cord neurons in cell culture.

    abstract::The novel anticonvulsant, remacemide HCl [(+/-)-2-amino-N-(1-methyl-1,2-diphenylethyl)acetamide monohydrochloride; FPL12924AA], and a desglycinated metabolite [(+/-)-1-methyl-1,2-diphenylethylamine monohydrochloride; FPL 12495AA] reversibly limited sustained high-frequency repetitive firing (SRF) of sodium-dependent a...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/0920-1211(95)00053-4

    authors: Wamil AW,Cheung H,Harris EW,McLean MJ

    更新日期:1996-02-01 00:00:00

  • Relative bioavailability of topiramate administered rectally.

    abstract:OBJECTIVE:To determine the relative bioavailability and tolerability of a topiramate (TPM) suspension after rectal administration. DESIGN/METHOD:Seven healthy men and five healthy non-pregnant women were enrolled. A 100 or 200 mg tablet of TPM was given orally and a 200 mg dose was given rectally in a randomized, open...

    journal_title:Epilepsy research

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1016/s0920-1211(03)00083-4

    authors: Conway JM,Birnbaum AK,Kriel RL,Cloyd JC

    更新日期:2003-05-01 00:00:00

  • Semi-quantitative analyses of antibodies to N-methyl-d-aspartate type glutamate receptor subunits (GluN2B & GluN1) in the clinical course of Rasmussen syndrome.

    abstract:OBJECTIVE:In Rasmussen syndrome (RS), in addition to the predominant involvement of cytotoxic T cells, heterogeneous autoantibodies against neural molecules are also found, but their function has not been elucidated. We examined antibodies to N-methyl-d-aspartate (NMDA) type glutamate receptor (GluR) subunits (GluN2B &...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2015.03.004

    authors: Fukuyama T,Takahashi Y,Kubota Y,Mogami Y,Imai K,Kondo Y,Sakuma H,Tominaga K,Oguni H,Nishimura S

    更新日期:2015-07-01 00:00:00

  • Standard dose valproic acid does not cause additional cognitive impact in a rodent model of intractable epilepsy.

    abstract::Children with epilepsy face significant cognitive and behavioral impairments. These impairments are due to a poorly characterized interaction between the underlying etiology, the effect of seizures and the effect of medication. The large variation in these factors make understanding the main drivers of cognitive impai...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2014.11.005

    authors: Jellett AP,Jenks K,Lucas M,Scott RC

    更新日期:2015-02-01 00:00:00

  • T2 relaxometry improves detection of non-sclerotic epileptogenic hippocampus.

    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

    authors: Sato S,Iwasaki M,Suzuki H,Mugikura S,Jin K,Tominaga T,Takase K,Takahashi S,Nakasato N

    更新日期:2016-10-01 00:00:00

  • Association of apolipoprotein E polymorphisms with temporal lobe epilepsy in a Chinese Han population.

    abstract::Apolipoprotein E (ApoE) has been implicated as one of the susceptibility genes for temporal lobe epilepsy (TLE). Previous studies indicate that ApoE ɛ4 is associated with several disease-related traits including the increased risk of late posttraumatic seizures, earlier onset of TLE, refractory complex partial seizure...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2010.07.020

    authors: Fu YH,Lv RJ,Jin LR,Lu Q,Shao XQ,He JS,Wu LW,Zhang LS,Hu HG

    更新日期:2010-10-01 00:00:00

  • The ketogenic diet does not alter brain expression of orexigenic neuropeptides.

    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

    authors: Tabb K,Szot P,White SS,Liles LC,Weinshenker D

    更新日期:2004-11-01 00:00:00

  • Factors associated with behavioral problems in children with idiopathic epilepsy.

    abstract::The present study examined whether the perceived behavioral problems of children with idiopathic epilepsy differed from those of healthy controls according to parent proxy-reports and which factors are associated with these problems. The parents of 106 children with idiopathic epilepsy and 305 healthy controls aged 6-...

    journal_title:Epilepsy research

    pub_type: 杂志文章,多中心研究

    doi:10.1016/j.eplepsyres.2012.01.014

    authors: Dafoulis V,Kalyva E

    更新日期:2012-06-01 00:00:00

  • Treatment of paediatric epilepsy in Germany: antiepileptic drug utilisation in children and adolescents with a focus on new antiepileptic drugs.

    abstract:BACKGROUND:Treatment of paediatric epilepsy has advanced with the development of new antiepileptic drugs (AEDs). There are few data for Germany to which extent new AEDs are used in the treatment of childhood epilepsy. AIMS:To characterise utilisation of antiepileptics in children and adolescents with a specific emphas...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2012.06.008

    authors: Dörks M,Langner I,Timmer A,Garbe E

    更新日期:2013-01-01 00:00:00

  • Aromatase inhibition by letrozole attenuates kainic acid-induced seizures but not neurotoxicity in mice.

    abstract::Evidence shows neurosteroids play a key role in regulating epileptogenesis. Neurosteroids such as testosterone modulate seizure susceptibility through its transformation to metabolites which show proconvulsant and anticonvulsant effects, respectively. Reduction of testosterone by aromatase generates proconvulsant 17-β...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2018.04.004

    authors: Iqbal R,Jain GK,Siraj F,Vohora D

    更新日期:2018-07-01 00:00:00

  • Effects of Jasminum multiflorum leaf extract on rodent models of epilepsy, motor coordination and anxiety.

    abstract::Jasmine flowers and leaves are used extensively in folk medicine in different parts of the world to treat a variety of diseases. However, there are very few published reports on the neuropsychiatric effects of Jasmine extracts. Hence, the objectives of the present study were to examine the effects of an alcohol extrac...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2017.02.012

    authors: Addae JI,Pingal R,Walkins K,Cruickshank R,Youssef FF,Nayak SB

    更新日期:2017-03-01 00:00:00

  • Folate status in women of childbearing age with epilepsy.

    abstract::Treatment with cytochrome P450 enzyme-inducing antiepileptic drugs (P450-inducing AEDs) is known to interfere with folate metabolism. Low folate status is of special concern in women with epilepsy who might become pregnant. Therefore, folate status was assessed in women age 16-42 treated for epilepsy. Staple food is n...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2007.04.003

    authors: Kampman MT

    更新日期:2007-06-01 00:00:00

  • A genetic epidemiological survey of idiopathic epilepsy in the Chinese Han population.

    abstract:BACKGROUND:Idiopathic epilepsy (IE) is a syndrome that comprises epilepsy only, with no underlying structural brain lesion or other neurological signs or symptoms. Numerous studies have shown that genetic factors play an important role in IE. IE is a common disease in the Chinese Han population. However, the genetic ep...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2011.09.013

    authors: Li M,Heng X,Tao R,Liu J,Zhang L,Sun X,Wang L,Wu Q,Che F,Xue F

    更新日期:2012-02-01 00:00:00

  • Increased neocortical spiking and surgical outcome after selective amygdalo-hippocampectomy.

    abstract::We studied the electrocorticogram (ECoG) before and immediately after transcortical selective amygdalo-hippocampectomy, prospectively in 13 consecutive patients and retrospectively in three others. ECoG was performed with surface and two depth electrodes inserted through T2 aimed at the amygdala and anterior hippocamp...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/0920-1211(93)90080-q

    authors: Cendes F,Dubeau F,Olivier A,Cukiert A,Andermann E,Quesney LF,Andermann F

    更新日期:1993-12-01 00:00:00

  • Female Wistar rats obtained from different breeders vary in anxiety-like behavior and epileptogenesis.

    abstract::Outbred rats are widely used in biomedical research studies. The genotypic variation, different housing and handling conditions during development, and gender of used rats can be expected to cause variations in behavior and epileptogenesis. We tested the hypothesis that adult female Wistar rats from different breeders...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2010.12.012

    authors: Honndorf S,Lindemann C,Töllner K,Gernert M

    更新日期:2011-03-01 00:00:00

  • The effects of anticonvulsant agents on 4-aminopyridine induced epileptiform activity in rat hippocampus in vitro.

    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 ...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/0920-1211(94)00077-a

    authors: Yonekawa WD,Kapetanovic IM,Kupferberg HJ

    更新日期:1995-02-01 00:00:00

  • Population pharmacokinetics of gabapentin in infants and children.

    abstract:PURPOSE:To characterize gabapentin pharmacokinetics in infants and children using a population approach and to identify important demographic and/or physiologic determinants of gabapentin disposition. METHODS:Gabapentin was administered in single doses of 10 mg/kg (N=48 healthy subjects, age 1 month-12 years) or in mu...

    journal_title:Epilepsy research

    pub_type: 临床试验,杂志文章

    doi:10.1016/s0920-1211(01)00311-4

    authors: Ouellet D,Bockbrader HN,Wesche DL,Shapiro DY,Garofalo E

    更新日期:2001-12-01 00:00:00

  • alpha-Tocopherol protects against pentylenetetrazol- and methylmalonate-induced convulsions.

    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

    authors: Ribeiro MC,de Avila DS,Schneider CY,Hermes FS,Furian AF,Oliveira MS,Rubin MA,Lehmann M,Krieglstein J,Mello CF

    更新日期:2005-08-01 00:00:00

  • Limitation by gabapentin of high frequency action potential firing by mouse central neurons in cell culture.

    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

    authors: Wamil AW,McLean MJ

    更新日期:1994-01-01 00:00:00

  • Stereoselective pharmacokinetics of stiripentol: an explanation for the development of tolerance to anticonvulsant effect.

    abstract::An earlier pharmacodynamic study of the chiral antiepileptic drug stiripentol in an intravenous pentylenetetrazol-induced seizure model in the rat showed the development of a significant degree of tolerance to the anticonvulsant and neurotoxic effects following subacute treatment with the racemic compound. A more rece...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/0920-1211(94)90001-9

    authors: Arends RH,Zhang K,Levy RH,Baillie TA,Shen DD

    更新日期:1994-06-01 00:00:00

  • Topiramate as add-on drug in children, adolescents and young adults with Lennox-Gastaut syndrome: an Italian multicentric study.

    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

    authors: Coppola G,Caliendo G,Veggiotti P,Romeo A,Tortorella G,De Marco P,Pascotto A

    更新日期:2002-09-01 00:00:00

  • Convulsive seizures and EEG spikes after lateral fluid-percussion injury in the rat.

    abstract::The rat lateral fluid-percussion injury (FPI) model has been used extensively to study post-traumatic epilepsy (PTE). Epidemiological studies have reported that the risk of PTE is higher after more severe injury. Adult, male Wistar rats subjected to different atmospheric pressures of injury during FPI showed great var...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2018.09.005

    authors: Smith D,Rau T,Poulsen A,MacWilliams Z,Patterson D,Kelly W,Poulsen D

    更新日期:2018-11-01 00:00:00

  • Intracranial EEG findings in patients with lesional lateral temporal lobe epilepsy.

    abstract:PURPOSE:Intracranial EEG in patients with lesional lateral temporal lobe epilepsy is rarely reported. Therefore, the number of patients with seizures arising independently from ipsilateral mesial structures or contralateral hemisphere has not been clarified. We analyzed the intracranial EEG of cases with localized lesi...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2007.10.009

    authors: Usui N,Mihara T,Baba K,Matsuda K,Tottori T,Umeoka S,Nakamura F,Terada K,Usui K,Inoue Y

    更新日期:2008-01-01 00:00:00

  • Whole-brain MEG connectivity-based analyses reveals critical hubs in childhood absence epilepsy.

    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

    authors: Youssofzadeh V,Agler W,Tenney JR,Kadis DS

    更新日期:2018-09-01 00:00:00

  • Carbamazepine toxicity during combination therapy with levetiracetam: a pharmacodynamic interaction.

    abstract::Levetiracetam is a novel antiepileptic drug with an unknown mechanism of action. To-date levetiracetam is not known to be associated with any clinically significant pharmacokinetic interaction. Similarly, levetiracetam has not been associated with any pharmacodynamic interactions. We present four patients with severe ...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/s0920-1211(01)00309-6

    authors: Sisodiya SM,Sander JW,Patsalos PN

    更新日期:2002-02-01 00:00:00

  • Glioneuronal tumors and medically intractable epilepsy: a clinical study with long-term follow-up of seizure outcome after surgery.

    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

    authors: Aronica E,Leenstra S,van Veelen CW,van Rijen PC,Hulsebos TJ,Tersmette AC,Yankaya B,Troost D

    更新日期:2001-03-01 00:00:00

  • Cost-effectiveness of add-on lamotrigine therapy in clinical practice.

    abstract:OBJECTIVE:This retrospective study addresses the cost-effectiveness of add-on therapy with lamotrigine in clinical practice. METHODS:Two years' observational data of 165 patients were used. Seizure frequency, adverse effects and direct medical costs were recorded for the year before and the year after the start of lam...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2005.09.007

    authors: Knoester PD,Boendermaker AJ,Egberts AC,Hekster YA,Keyser A,Severens JL,Renier WO,Deckers CL

    更新日期:2005-12-01 00:00:00

  • Outcome of intracranial electroencephalography monitoring and surgery in magnetic resonance imaging-negative temporal lobe epilepsy.

    abstract::We evaluated the outcomes of intracranial electroencephalography (iEEG) recording and subsequent resective surgery in patients with magnetic resonance imaging (MRI)-negative temporal lobe epilepsy (TLE). Thirty-two patients were identified from the Mayo Clinic Epilepsy Surgery Database (Arizona, Florida, and Minnesota...

    journal_title:Epilepsy research

    pub_type: 杂志文章

    doi:10.1016/j.eplepsyres.2014.03.013

    authors: Lee RW,Hoogs MM,Burkholder DB,Trenerry MR,Drazkowski JF,Shih JJ,Doll KE,Tatum WO 4th,Cascino GD,Marsh WR,Wirrell EC,Worrell GA,So EL

    更新日期:2014-07-01 00:00:00