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Epilepsy Research

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https://www.readbyqxmd.com/read/28107659/high-frequency-oscillations-and-seizure-like-discharges-in-the-entorhinal-cortex-of-the-in-vitro-isolated-guinea-pig-brain
#1
Laura Uva, Davide Boido, Massimo Avoli, Marco de Curtis, Maxime Lévesque
We analyzed the patterns of seizure-like activity and associated high-frequency oscillations (HFOs) induced by the K(+) channel blocker 4-aminopyridine (4AP, 50μM) or the GABAA receptor antagonist bicuculline methiodide (BMI, 50μM) in the in vitro isolated guinea pig brain preparation. Extracellular field recordings were obtained from the medial entorhinal cortex (EC) using glass pipettes or silicon probes; 4AP or BMI were applied through the basilar artery. Ripples (80-200Hz) or fast ripples (250-500Hz) occurred at higher rates shortly before ictal events induced by 4AP or BMI, respectively...
January 6, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28073096/high-density-scalp-eeg-in-frontal-lobe-epilepsy
#2
Anteneh M Feyissa, Jeffrey W Britton, Jamie Van Gompel, Terrance L Lagerlund, Elson So, Lilly C Wong-Kisiel, Gregory C Cascino, Benjamin H Brinkman, Cindy L Nelson, Robert Watson, Gregory A Worrell
PURPOSE: Localization of seizures in frontal lobe epilepsy using the 10-20 system scalp EEG is often challenging because neocortical seizure can spread rapidly, significant muscle artifact, and the suboptimal spatial resolution for seizure generators involving mesial frontal lobe cortex. Our aim in this study was to determine the value of visual interpretation of 76 channel high density EEG (hdEEG) monitoring (10-10 system) in patients with suspected frontal lobe epilepsy, and to evaluate concordance with MRI, subtraction ictal SPECT co-registered to MRI (SISCOM), conventional EEG, and intracranial EEG (iEEG)...
January 2, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28086164/lacosamide-for-uncontrolled-primary-generalized-tonic-clonic-seizures-an-open-label-pilot-study-with-59-week-extension
#3
Robert T Wechsler, Stephen L Yates, John Messenheimer, Robert Leroy, Cynthia Beller, Pamela Doty
OBJECTIVE: Assess the safety of adjunctive lacosamide for the treatment of uncontrolled primary generalized tonic-clonic seizures in patients (16-65 years) with primary generalized (genetic) epilepsy (PGE). METHODS: An open-label pilot safety study (SP0961; NCT01118949), comprising 12 weeks' historical baseline, 4 weeks' prospective baseline, 3 weeks' titration (target: 400mg/day adjunctive lacosamide) and 6 weeks' maintenance. Patients who continued to the extension study (SP0962; NCT01118962) then received ≤59 weeks of flexible treatment (100-800mg/day lacosamide with flexible dosing of concomitant antiepileptic drugs)...
December 29, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28081475/add-on-stiripentol-elevates-serum-valproate-levels-in-patients-with-or-without-concomitant-topiramate-therapy
#4
Toshihiro Jogamoto, Yoshiaki Yamamoto, Mitsumasa Fukuda, Yuka Suzuki, Katsumi Imai, Yukitoshi Takahashi, Yushi Inoue, Yoko Ohtsuka
OBJECTIVE: Stiripentol (STP), valproate (VPA) and topiramate (TPM) are reported to have efficacy for Dravet syndrome. In this study, we sought to elucidate the mechanisms underlying the increased serum VPA concentrations following STP adjunctive therapy in patients with Dravet syndrome. METHODS: Twenty-eight patients with Dravet syndrome (age range, 1-35 years) undergoing combination therapy with VPA and STP were included in this study. We evaluated VPA and clobazam (CLB) serum concentrations before and after add-on STP...
December 26, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28073027/epileptic-features-and-survival-in-glioblastomas-presenting-with-seizures
#5
Manuel Toledo, Silvana Sarria-Estrada, Manuel Quintana, Xavier Maldonado, Francisco Martinez-Ricarte, Jordi Rodon, Cristina Auger, Miren Aizpurua, Javier Salas-Puig, Estevo Santamarina, Elena Martinez-Saez
INTRODUCTION: The prognostic value of seizures in patients with glioblastoma is currently under discussion. The objective of this research was to study the risk factors associated with seizures occurring at the diagnosis of glioblastoma and the role of seizures as a predictive factor for survival. MATERIAL AND METHODS: We prospectively analyzed the clinical data over the course of the disease, baseline MR imaging, and histological characteristics (p53 overexpression, the Ki67 proliferation index, and presence of the IDH1 R132H mutation), in glioblastomas treated in a single hospital from November 2012 to July 2014...
December 26, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28017504/erratum-to-safety-efficacy-and-outcome-related-factors-of-perampanel-over-12months-in-a-real-world-setting-the-fydata-study-epilepsy-res-126-2016-201-210
#6
V Villanueva, M Garcés, F J López-González, X Rodriguez-Osorio, M Toledo, J Salas-Puig, M González-Cuevas, D Campos, J M Serratosa, B González-Giráldez, J A Mauri, J L Camacho, A Suller, M Carreño, J B Gómez, J Montoya, J Rodríguez-Uranga, R Saiz-Diaz, J González-de la Aleja, A Castillo, J López-Trigo, J J Poza, J Flores, R Querol, J Ojeda, P Giner, A Molins, P Esteve, J J Baigesr
No abstract text is available yet for this article.
December 22, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28092848/the-initial-use-of-arterial-spin-labeling-perfusion-and-diffusion-weighted-magnetic-resonance-images-in-the-diagnosis-of-nonconvulsive-partial-status-epileptics
#7
Takafumi Shimogawa, Takato Morioka, Tetsuro Sayama, Sei Haga, Yuka Kanazawa, Kei Murao, Shuji Arakawa, Ayumi Sakata, Koji Iihara
BACKGROUND: In the diagnosis of nonconvulsive status epilepticus (NCSE), capture of ongoing ictal electroencephalographic (EEG) findings is the gold standard; however, this is practically difficult without continuous EEG monitoring facilities. Magnetic resonance imaging (MRI), including diffusion-weighted imaging (DWI) and perfusion MRI with arterial spin labeling (ASL), have been applied mainly in emergency situations. Recent reports have described that ictal MRI findings, including ictal hyperperfusion on ASL and cortical hyperintensity of cytotoxic edema on DWI, can be obtained from epileptically activated cortex...
December 21, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28043059/determining-factors-of-electrocardiographic-abnormalities-in-patients-with-epilepsy-a-case-control-study
#8
Jorge Murilo Barbosa de Sousa, Guilherme Loureiro Fialho, Peter Wolf, Roger Walz, Katia Lin
Sudden unexpected death in epilepsy (SUDEP) is a major cause of mortality in young patients with epilepsy (PWE). Although its mechanisms are still poorly understood, they may include cardiorespiratory dysfunction. Standard 12-lead electrocardiograms (ECGs) were obtained from 62 consecutive patients (aged 18-66y) with a definite diagnosis of epilepsy, without seizures at the day of ECG, and 57 healthy controls matched for sex, age and body mass index (BMI). All ECGs were evaluated by a blinded board-certified cardiologist...
December 20, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28043058/epilepsy-surgery-in-drug-resistant-temporal-lobe-epilepsy-associated-with-neuronal-antibodies
#9
Mar Carreño, Christian G Bien, Ali A Asadi-Pooya, Michael Sperling, Petr Marusic, Martin Elisak, Jose Pimentel, Tim Wehner, Rajiv Mohanraj, Juan Uranga, Asier Gómez-Ibáñez, Vicente Villanueva, Francisco Gil, Antonio Donaire, Nuria Bargalló, Jordi Rumià, Pedro Roldán, Xavier Setoain, Luis Pintor, Teresa Boget, Eva Bailles, Mercè Falip, Javier Aparicio, Josep Dalmau, Francesc Graus
We assessed the outcome of patients with drug resistant epilepsy and neuronal antibodies who underwent epilepsy surgery. Retrospective study, information collected with a questionnaire sent to epilepsy surgery centers. Thirteen patients identified, with antibodies to GAD (8), Ma2 (2), Hu (1), LGI1 (1) or CASPR2 (1). Mean age at seizure onset: 23 years. Five patients had an encephalitic phase. Three had testicular tumors and five had autoimmune diseases. All had drug resistant temporal lobe epilepsy (median: 20 seizures/month)...
December 15, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28043066/thalamic-hypoperfusion-and-disrupted-cerebral-blood-flow-networks-in-idiopathic-generalized-epilepsy-arterial-spin-labeling-and-graph-theoretical-analysis
#10
Daichi Sone, Masako Watanabe, Miho Ota, Yukio Kimura, Atsuhiko Sugiyama, Tomoko Maekawa, Mariko Okura, Mikako Enokizono, Etsuko Imabayashi, Noriko Sato, Hiroshi Matsuda
PURPOSE: The aim of this study was to investigate interictal cerebral blood flow (CBF) distributions and graph theoretical networks in idiopathic generalized epilepsy (IGE) using arterial spin labeling (ASL) imaging and anatomical covariance methods of graph theoretical analysis. MATERIAL AND METHODS: We recruited 19 patients with IGE and 19 age-/gender-matched healthy controls. Their CBF images were obtained by pseudo-continuous ASL imaging and compared using statistical parametric mapping 8 software (SPM8) and Graph Analysis Toolbox (GAT)...
December 14, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28043065/timing-of-first-event-in-inpatient-long-term-video-eeg-monitoring-for-diagnostic-purposes
#11
Fieke M E Cox, Elise E M Reus, Gerhard H Visser
BACKGROUND: Long-term video-EEG monitoring (LTM) aims to record the habitual event and is a useful diagnostic tool for neurological paroxysmal clinical events. In our epilepsy monitoring unit (EMU) setting, admissions are usually planned to last up to five days. We ascertained time taken for the recording of a first event and determined correlations between different clinical characteristics and timings. METHODS: We retrospectively reviewed diagnostic and classification LTM recording performed at a tertiary epilepsy centre...
December 14, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28043063/investigation-of-neuronal-auto-antibodies-in-systemic-lupus-erythematosus-patients-with-epilepsy
#12
Zerrin Karaaslan, Esme Ekizoğlu, Pınar Tektürk, Ece Erdağ, Erdem Tüzün, Nerses Bebek, Candan Gürses, Betül Baykan
PURPOSE: Epilepsy is an important feature for neuropsychiatric involvement in systemic lupus erythematosus (SLE) with unknown mechanism. Our aim was to investigate the presence of neuronal auto-antibodies (NAbs) in neuropsychiatric SLE (NPSLE). METHODS: Eighteen SLE patients (17 females, 1 male) experiencing recurrent seizures were enrolled to this study. Their clinical characteristics, EEG and MRI findings and follow-up information were evaluated from their files...
December 14, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28017503/response-to-radiotelemetric-eeg-recordings-in-mice-critical-role-of-transmitter-bandwidth-and-nominal-sampling-rate-in-frequency-analysis
#13
LETTER
Toni Schneider
No abstract text is available yet for this article.
December 9, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/27989393/radiotelemetric-eeg-recordings-in-mice-critical-role-of-transmitter-bandwidth-and-nominal-sampling-rate-in-frequency-analysis
#14
LETTER
Marco Weiergräber
No abstract text is available yet for this article.
December 8, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28056425/fcd-type-ii-and-mtor-pathway-evidence-for-different-mechanisms-involved-in-the-pathogenesis-of-dysmorphic-neurons
#15
Laura Rossini, Flavio Villani, Tiziana Granata, Laura Tassi, Giovanni Tringali, Francesco Cardinale, Eleonora Aronica, Roberto Spreafico, Rita Garbelli
Type II focal cortical dysplasia (FCD II) is a malformation of cortical development, frequently associated with intractable epilepsy, characterised by cortical dyslamination, dysmorphic neurons (DNs) and balloon cells (BCs). We investigated the expression of pS6 (downstream target) and pPDK1-pAkt (upstream targets) as evidence for mTOR pathway activation and their co-expression with Interleukin-1β in FCD II surgical specimens and compared the findings with control non-epileptic tissue, non-malformed epileptic tissue or acquired epilepsy-Rasmussen's Encephalitis (RE) occasionally presenting pS6 and Interleukin-1β positive abnormal neurons...
December 7, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28043062/pharmacokinetic-variability-efficacy-and-tolerability-of-eslicarbazepine-acetate-a-national-approach-to-the-evaluation-of-therapeutic-drug-monitoring-data-and-clinical-outcome
#16
Torleiv Svendsen, Eylert Brodtkorb, Arne Reimers, Espen Molden, Erik Sætre, Svein I Johannessen, Cecilie Johannessen Landmark
BACKGROUND: Eslicarbazepine acetate (ESL) is a new antiepileptic drug (AED), still insufficiently studied regarding pharmacokinetic variability, efficacy and tolerability. The purpose of this study was to evaluate therapeutic drug monitoring (TDM) data in Norway and relate pharmacokinetic variability to clinical efficacy and tolerability in a long-term clinical setting in patients with refractory epilepsy. METHODS: This retrospective observational study included TDM-data from the main laboratories and population data from the Norwegian Prescription Database in Norway, in addition to clinical data from medical records of adult patients using ESL for up to three years, whenever possible...
December 5, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28043060/sudden-unexpected-death-in-epilepsy-a-beneficial-animal-model
#17
LETTER
Claudia Stöllberger, Josef Finsterer
No abstract text is available yet for this article.
December 5, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28043061/fars2-mutation-and-epilepsy-possible-link-with-early-onset-epileptic-encephalopathy
#18
Jae So Cho, Seung Hyo Kim, Ha Young Kim, Taesu Chung, Dongsup Kim, Sesong Jang, Seung Bok Lee, Seung Keun Yoo, Jongyeon Shin, Jong-Il Kim, Hunmin Kim, Hee Hwang, Jong-Hee Chae, Jieun Choi, Ki Joong Kim, Byung Chan Lim
Early-onset epileptic encephalopathy (EOEE) consists of a heterogeneous group of epilepsy phenotypes. Recent technological advances in molecular biology have also rapidly expanded the genotype of EOEE. Genes involved in diverse molecular pathways, including ion channels, synaptic structure, transcription regulation, and cellular growth, have been implicated in EOEE. Mitochondrial aminoacyl tRNA synthetase, which plays a key role in mitochondrial protein synthesis by attaching 20 different amino acids to the tRNA tail, has been recently linked with the epilepsy phenotype...
December 2, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28034485/the-photosensitivity-model-is-also-a-model-for-focal-partial-seizures
#19
Dorothee Kasteleijn-Nolst Trenite, Pierre Genton, Christian Brandt, Ronald C Reed
The 'Photosensitivity Model' uses a standardized stimulation protocol of repeated intermittent photic stimulation (IPS) over a three-day period, with administration of a single dose of an investigational antiepileptic drug (AED) after a baseline IPS day in photosensitive patients, followed by a third IPS day to determine duration of effect. This 'Photosensitivity Model' has shown its' value in the development of new AEDs. Levetiracetam (LEV), currently a first-line AED in new-onset focal epilepsies, was not effective in classical animal models, but showed dose-dependent efficacy in the human 'Photosensitivity Model'...
December 2, 2016: Epilepsy Research
https://www.readbyqxmd.com/read/28024219/a-strategy-for-translational-epilepsy-research
#20
EDITORIAL
David M Treiman
No abstract text is available yet for this article.
December 1, 2016: Epilepsy Research
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