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Epilepsia

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https://www.readbyqxmd.com/read/28643873/increased-expression-of-immuno-proteasome-subunits-during-epileptogenesis-is-attenuated-by-inhibition-of-the-mammalian-target-of-rapamycin-pathway
#1
Diede W M Broekaart, Jackelien van Scheppingen, Karlijne W Geijtenbeek, Mark R J Zuidberg, Jasper J Anink, Johannes C Baayen, Angelika Mühlebner, Eleonora Aronica, Jan A Gorter, Erwin A van Vliet
OBJECTIVE: Inhibition of the mammalian target of rapamycin (mTOR) pathway reduces epileptogenesis in various epilepsy models, possibly by inhibition of inflammatory processes, which may include the proteasome system. To study the role of mTOR inhibition in the regulation of the proteasome system, we investigated (immuno)proteasome expression during epileptogenesis, as well as the effects of the mTOR inhibitor rapamycin. METHODS: The expression of constitutive (β1, β5) and immunoproteasome (β1i, β5i) subunits was investigated during epileptogenesis using immunohistochemistry in the electrical post-status epilepticus (SE) rat model for temporal lobe epilepsy (TLE)...
June 23, 2017: Epilepsia
https://www.readbyqxmd.com/read/28643843/perisylvian-including-insular-childhood-epilepsy-presurgical-workup-and-surgical-outcome
#2
Elena Freri, Sara Matricardi, Francesca Gozzo, Massimo Cossu, Tiziana Granata, Laura Tassi
OBJECTIVE: To report the presurgical workup, surgical procedures, and outcomes in a series of pediatric patients with drug-resistant epilepsy involving the perisylvian/insular regions. METHODS: We retrospectively assessed 16 pediatric patients affected by drug-resistant focal epilepsy involving perisylvian/insular regions, who consecutively underwent tailored resective surgery. All patients underwent a detailed presurgical workup, which included the analysis of the anatomoelectroclinical correlations with scalp electroencephalography (EEG) and/or with stereo-electroencephalography (SEEG), brain magnetic resonance imaging (MRI), and comprehensive cognitive and neuropsychological evaluations...
June 23, 2017: Epilepsia
https://www.readbyqxmd.com/read/28632902/impaired-hippocampal-glucose-metabolism-during-and-after-flurothyl-induced-seizures-in-mice-reduced-phosphorylation-coincides-with-reduced-activity-of-pyruvate-dehydrogenase
#3
Tanya S McDonald, Karin Borges
OBJECTIVE: To determine changes in glucose metabolism and the enzymes involved in the hippocampus ictally and postictally in the acute mouse flurothyl seizure model. METHODS: [U-(13) C]-Glucose was injected (i.p.) prior to, or following a 5 min flurothyl-induced seizure. Fifteen minutes later, mice were killed and the total metabolite levels and % (13) C enrichment were analyzed in the hippocampal formation using gas chromatography-mass spectrometry. Activities of key metabolic and antioxidant enzymes and the phosphorylation status of pyruvate dehydrogenase were measured, along with lipid peroxidation...
June 20, 2017: Epilepsia
https://www.readbyqxmd.com/read/28632329/postictal-hypoperfusion-hypoxia-provides-the-foundation-for-a-unified-theory-of-seizure-induced-brain-abnormalities-and-behavioral-dysfunction
#4
REVIEW
Jordan S Farrell, Roberto Colangeli, Marshal D Wolff, Alexandra K Wall, Thomas J Phillips, Antis George, Paolo Federico, G Campbell Teskey
A recent article by Farrell et al. characterizes the phenomenon, mechanisms, and treatment of a local and severe hypoperfusion/hypoxia event that occurs in brain regions following a focal seizure. Given the well-established role of cerebral ischemia/hypoxia in brain damage and behavioral dysfunction in other clinical settings (e.g., stroke, cerebral vasospasm), we put forward a new theory: postictal hypoperfusion/hypoxia is responsible for the negative consequences associated with seizures. Fortunately, inhibition of two separate molecular targets, cyclooxygenase-2 (COX-2) and l-type calcium channels, can prevent the expression of postictal hypoperfusion/hypoxia...
June 20, 2017: Epilepsia
https://www.readbyqxmd.com/read/28632327/photosensitivity-is-an-early-marker-of-neuronal-ceroid-lipofuscinosis-type-2-disease
#5
Nicola Specchio, Marcello Bellusci, Nicola Pietrafusa, Marina Trivisano, Luca de Palma, Federico Vigevano
OBJECTIVE: This study aimed to identify early clinical, magnetic resonance imaging (MRI), and electroencephalographic (EEG) characteristics of neuronal ceroid lipofuscinosis type 2 (CLN2) disease to enable early diagnosis, thus providing the key to early treatment, and optimized care and outcomes. METHODS: Retrospective clinical chart review of a series of patients diagnosed with CLN2 disease from 2005 to 2015 at a single center in Italy. Clinical, MRI, and EEG findings were reviewed...
June 20, 2017: Epilepsia
https://www.readbyqxmd.com/read/28632301/regulation-of-kindling-epileptogenesis-by-hippocampal-toll-like-receptors-2
#6
Jesús-Servando Medel-Matus, Ashley Reynolds, Don Shin, Raman Sankar, Andrey Mazarati
This study examined whether Toll-like receptors 2 (TLR2) contribute to rapid kindling epileptogenesis. A TLR2 agonist, lipoteichoic acid (LTA), LTA antibody (LTA-A), or normal saline (control) was administered daily over 3 consecutive days, unilaterally into ventral hippocampus of adult male Wistar rats. Thirty minutes after the last injection, the animals were subjected to a rapid kindling procedure. The ictogenesis was gauged by comparing afterdischarge threshold (ADT) and afterdischarge duration (ADD) before the treatments, after the treatments prior to kindling, and 24 h after kindling...
June 20, 2017: Epilepsia
https://www.readbyqxmd.com/read/28622421/how-to-record-high-frequency-oscillations-in-epilepsy-a-practical-guideline
#7
REVIEW
Maeike Zijlmans, Gregory A Worrell, Matthias Dümpelmann, Thomas Stieglitz, Andrei Barborica, Marcel Heers, Akio Ikeda, Naotaka Usui, Michel Le Van Quyen
OBJECTIVE: Technology for localizing epileptogenic brain regions plays a central role in surgical planning. Recent improvements in acquisition and electrode technology have revealed that high-frequency oscillations (HFOs) within the 80-500 Hz frequency range provide the neurophysiologist with new information about the extent of the epileptogenic tissue in addition to ictal and interictal lower frequency events. Nevertheless, two decades after their discovery there remain questions about HFOs as biomarkers of epileptogenic brain and there use in clinical practice...
June 16, 2017: Epilepsia
https://www.readbyqxmd.com/read/28620949/nonintravenous-rescue-medications-for-pediatric-status-epilepticus-a-cost-effectiveness-analysis
#8
Iván Sánchez Fernández, Marina Gaínza-Lein, Tobias Loddenkemper
OBJECTIVE: To quantify the cost-effectiveness of rescue medications for pediatric status epilepticus: rectal diazepam, nasal midazolam, buccal midazolam, intramuscular midazolam, and nasal lorazepam. METHODS: Decision analysis model populated with effectiveness data from the literature and cost data from publicly available market prices. The primary outcome was cost per seizure stopped ($/SS). One-way sensitivity analyses and second-order Monte Carlo simulations evaluated the robustness of the results across wide variations of the input parameters...
June 16, 2017: Epilepsia
https://www.readbyqxmd.com/read/28617940/quality-of-life-in-childhood-epilepsy-in-pediatric-patients-enrolled-in-a-prospective-open-label-clinical-study-with-cannabidiol
#9
Evan C Rosenberg, Jay Louik, Erin Conway, Orrin Devinsky, Daniel Friedman
Recent clinical trials indicate that cannabidiol (CBD) may reduce seizure frequency in pediatric patients with certain forms of treatment-resistant epilepsy. Many of these patients experience significant impairments in quality of life (QOL) in physical, mental, and social dimensions of health. In this study, we measured the caregiver-reported Quality of Life in Childhood Epilepsy (QOLCE) in a subset of patients enrolled in a prospective, open-label clinical study of CBD. Results from caregivers of 48 patients indicated an 8...
June 15, 2017: Epilepsia
https://www.readbyqxmd.com/read/28613413/commentary-gator-complex-associated-epilepsies
#10
Johannes R Lemke
No abstract text is available yet for this article.
June 14, 2017: Epilepsia
https://www.readbyqxmd.com/read/28613386/commentary-2016-epilepsia-basic-science-prize
#11
Fred A Lado
No abstract text is available yet for this article.
June 14, 2017: Epilepsia
https://www.readbyqxmd.com/read/28605011/use-of-the-ketogenic-diet-to-manage-refractory-epilepsy-in-cdkl5-disorder-experience-of-100-patients
#12
Zhan Lim, Kingsley Wong, Heather E Olson, Ann M Bergin, Jenny Downs, Helen Leonard
OBJECTIVE: Pathogenic variants involving the CDKL5 gene result in a severe epileptic encephalopathy, often later presenting with features similar to Rett syndrome. Cardinal features of epilepsy in the CDKL5 disorder include early onset at a median age of 6 weeks and poor response to antiepileptic drugs. The ketogenic diet (KD) was first introduced in the 1920s as a treatment option for refractory epilepsy in children. This study investigated use of the KD in the CDKL5 disorder and its influences on seizures...
June 12, 2017: Epilepsia
https://www.readbyqxmd.com/read/28597927/the-prevalence-of-anxiety-and-associated-factors-in-persons-with-epilepsy
#13
Tram Pham, Khara M Sauro, Scott B Patten, Samuel Wiebe, Kirsten M Fiest, Andrew G M Bulloch, Nathalie Jetté
The objectives of this study were to estimate the prevalence of, and factors associated with, anxiety in epilepsy. We conducted a cross-sectional analysis using data from the Neurological Disease and Depression Study. The prevalence of anxiety and associated factors were assessed using descriptive statistics and logistic regression. Of the total sample (n = 250 patients), nearly 40.0% of participants had anxiety according to the Hospital Anxiety and Depression Scale. The most prevalent symptom of anxiety was "worrying thoughts" (35...
June 9, 2017: Epilepsia
https://www.readbyqxmd.com/read/28597917/prediction-of-specific-depressive-symptom-clusters-in-youth-with-epilepsy-the-nddi-e-y-versus-neuro-qol-sf
#14
Tanja S Kellermann, Martina Mueller, Emma G Carter, Byron Brooks, Gigi Smith, Olivia J Kopp, Janelle L Wagner
OBJECTIVE: Proper assessment and early identification of depressive symptoms are essential to initiate treatment and minimize the risk for poor outcomes in youth with epilepsy (YWE). The current study examined the predictive utility of the Neurological Disorders Depression Inventory-Epilepsy for Youth (NDDI-E-Y) and the Neuro-QOL Depression Short Form (Neuro-QOL SF) in explaining variance in overall depressive symptoms and specific symptom clusters on the gold standard Children's Depression Inventory-2 (CDI-2)...
June 9, 2017: Epilepsia
https://www.readbyqxmd.com/read/28597913/inherent-vulnerabilities-in-monoaminergic-pathways-predict-the-emergence-of-depressive-impairments-in-an-animal-model-of-chronic-epilepsy
#15
Jesús-Servando Medel-Matus, Don Shin, Raman Sankar, Andrey Mazarati
The objective was to determine whether the depression comorbid with epilepsy could be predicted based on inherent premorbid patterns of monoaminergic transmission. In male Wistar rats, despair-like and anhedonia-like behaviors were examined using forced swimming and taste preference tests, respectively. Serotonergic raphe nucleus (RN)-prefrontal cortex (PFC) and dopaminergic ventral tegmental area (VTA)-nucleus accumbens (NAcc) pathways were interrogated by fast scan cyclic voltammetry (FSCV). The assays were performed before and 2 months after pilocarpine status epilepticus...
June 9, 2017: Epilepsia
https://www.readbyqxmd.com/read/28597912/acute-and-long-term-effects-of-brivaracetam-and-brivaracetam-diazepam-combinations-in-an-experimental-model-of-status-epilepticus
#16
Jerome Niquet, Lucie Suchomelova, Kerry Thompson, Henrik Klitgaard, Alain Matagne, Claude Wasterlain
OBJECTIVE: To evaluate acute and long-term effects of intravenous brivaracetam (BRV) and BRV + diazepam (DZP) combination treatment in a rat model of self-sustaining status epilepticus (SSSE). METHODS: Rats were treated with BRV (10 mg/kg) 10 min after initiation of perforant path stimulation (PPS) as early treatment; or BRV (10-300 mg/kg), DZP (1 mg/kg), or BRV (0.3-10 mg/kg) + DZP (1 mg/kg) 10 min after the end of PPS (established SSSE). Seizure activity was recorded electrographically for 24 h posttreatment (acute effects), and for 1 week at 6-8 weeks or 12 months' posttreatment (long-term effects)...
June 9, 2017: Epilepsia
https://www.readbyqxmd.com/read/28589669/an-economic-evaluation-of-a-multicomponent-self-management-intervention-for-adults-with-epilepsy-zmile-study
#17
Ben F M Wijnen, Loes A M Leenen, Reina J A de Kinderen, Caroline M van Heugten, Marian H J M Majoie, Silvia M A A Evers
OBJECTIVE: The objective of this (trial-based) economic evaluation was, from a societal perspective, to compare the cost-effectiveness of a multicomponent self-management intervention (MCI) with care as usual (CAU) in adult patients with epilepsy over a 12-month period. METHODS: In a randomized-controlled trial, participants were randomized into intervention or CAU group. Adherence, self-efficacy (Epilepsy Self-Efficacy Scale [ESES]), quality-adjusted life years (QALYs), healthcare costs, production losses, and patient and family costs were assessed at baseline and during the 12-month study period...
June 7, 2017: Epilepsia
https://www.readbyqxmd.com/read/28586508/overexpressing-wild-type-%C3%AE-2-subunits-rescued-the-seizure-phenotype-in-gabrg2-q390x-dravet-syndrome-mice
#18
Xuan Huang, Chengwen Zhou, Mengnan Tian, Jing-Qiong Kang, Wangzhen Shen, Kelienne Verdier, Aurea Pimenta, Robert L MacDonald
OBJECTIVE: The mutant γ-aminobutyric acid type A (GABAA ) receptor γ2(Q390X) subunit (Q351X in the mature peptide) has been associated with the epileptic encephalopathy, Dravet syndrome, and the epilepsy syndrome genetic epilepsy with febrile seizures plus (GEFS+). The mutation generates a premature stop codon that results in translation of a stable truncated and misfolded γ2 subunit that accumulates in neurons, forms intracellular aggregates, disrupts incorporation of γ2 subunits into GABAA receptors, and affects trafficking of partnering α and β subunits...
June 6, 2017: Epilepsia
https://www.readbyqxmd.com/read/28575529/abnormal-%C3%AE-aminobutyric-acid-neurotransmission-in-a-kcnq2-model-of-early-onset-epilepsy
#19
Taku Uchida, Christoph Lossin, Yukiko Ihara, Masanobu Deshimaru, Yuchio Yanagawa, Susumu Koyama, Shinichi Hirose
OBJECTIVE: Mutations of the KCNQ2 gene, which encodes the Kv 7.2 subunit of voltage-gated M-type potassium channels, have been associated with epilepsy in the neonatal period. This developmental stage is unique in that the neurotransmitter gamma aminobutyric acid (GABA), which is inhibitory in adults, triggers excitatory action due to a reversed chloride gradient. METHODS: To examine whether KCNQ2-related neuronal hyperexcitability involves neonatally excitatory GABA, we examined 1-week-old knockin mice expressing the Kv 7...
June 2, 2017: Epilepsia
https://www.readbyqxmd.com/read/28569419/regulating-drivers-with-epilepsy-in-maryland-results-of-the-application-of-a-united-states-consensus-guideline
#20
Brandy B Ma, John Bloch, Allan Krumholz, Jennifer L Hopp, Perry J Foreman, Carl A Soderstrom, Mary A Scottino, Martha Matsumoto, Gregory L Krauss
OBJECTIVE: Driving regulations for people with seizures vary widely throughout the United States and the world. Maryland updated their guidelines in 2003 to reflect those of a U.S. consensus guideline requiring a minimum 3-month seizure-free period as well as an individual risk assessment by a Medical Advisory Board (MAB). This retrospective study provides the first analysis of outcomes after the implementation of the consensus guidelines and an assessment of their predictive validity through longitudinal outcome data...
June 1, 2017: Epilepsia
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