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Epilepsie

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https://www.readbyqxmd.com/read/28214451/a-novel-lc-ms-ms-method-for-the-simultaneous-quantification-of-topiramate-and-its-main-metabolites-in-human-plasma
#1
Daniela Milosheska, Robert Roškar
The aim of the present report was to develop and validate simple, sensitive and reliable LC-MS/MS method for quantification of topiramate (TPM) and its main metabolites: 2,3-desisopropylidene TPM, 4,5-desisopropylidene TPM, 10-OH TPM and 9-OH TPM in human plasma samples. The most abundant metabolite 2,3-desisopropylidene TPM was isolated from patients urine, characterized and afterwards used as an authentic standard for method development and validation. Sample preparation method employs 100μL of plasma sample and liquid-liquid extraction with a mixture of ethyl acetate and diethyl ether as extraction solvent...
February 3, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28214290/evaluate-the-efficacy-and-safety-of-anti-epileptic-medications-for-partial-seizures-of-epilepsy-a-network-meta-analysis
#2
Teng Zhao, Xuemin Feng, Jingyao Liu, Jiguo Gao, Chunkui Zhou
Epilepsy is a brain and neurological disorder with high prevalence. It was reported that more than 70% of epileptic seizures were controlled by anti-epileptic medications, whereas the lack of evidence with respect to head-to-head comparisons motivated researchers to seek alternative approaches that are able to provide deep insights into the profile of anti-epileptic medications. In this study, we performed a network meta-analysis (NMA) to evaluate the efficacy and safety of anti-epileptic medications for partial seizures of epilepsy...
February 18, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28214165/agenesis-of-the-corpus-callosum-and-aicardi-syndrome-a%C3%A2-neuroimaging-and-clinical-comparison
#3
T Govil-Dalela, A Kumar, R Agarwal, H T Chugani
BACKGROUND: Agenesis of the corpus callosum can occur in individuals with epilepsy, either in isolation or as part of various neurological conditions, such as Aicardi syndrome. In this study, we evaluated the clinical and neuroradiological differences between children with nonsyndromic agenesis of the corpus callosum and those with Aicardi syndrome. METHODS: We evaluated 31 children with epilepsy and agenesis of the corpus callosum (11 males, 20 females), 14 of whom had Aicardi syndrome (all females)...
January 4, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28214048/psychosocial-and-behavioral-functioning-and-their-relationship-to-seizure-timing-in-children-with-benign-epilepsy-with-centrotemporal-spikes
#4
Gonca Bektaş, Uğur Tekin, Edibe Pembegül Yıldız, Tuğçe Aksu Uzunhan, Burak Tatlı, Nur Aydınlı, Mine Çalışkan, Meral Özmen
BACKGROUND: Psychosocial and behavioral problems have been reported in children with benign epilepsy with centrotemporal spikes (BECTS). Distinctive features of typical BECTS associated with cognitive and behavioral problems have not clearly been defined. PURPOSE: We aimed to identify psychosocial and behavioral functioning and their relationship to seizure timing in BECTS. METHODS: Consecutive patients with BECTS were recruited from the pediatric neurology outpatient clinic between May 2015 and May 2016...
February 14, 2017: Brain & Development
https://www.readbyqxmd.com/read/28213372/effect-of-topiramate-and-zonisamide-on-fmri-cognitive-networks
#5
Britta Wandschneider, Jane Burdett, Lucy Townsend, Andrea Hill, Pamela J Thompson, John S Duncan, Matthias J Koepp
OBJECTIVE: To investigate the effects of topiramate (TPM), zonisamide (ZNS), and levetiracetam (LEV) on cognitive network activations in patients with focal epilepsy using an fMRI language task. METHODS: In a retrospective, cross-sectional study, we identified patients from our clinical database of verbal fluency fMRI studies who were treated with either TPM (n = 32) or ZNS (n = 51). We matched 62 patients for clinical measures who took LEV but not TPM or ZNS. We entered antiepileptic comedications as nuisance variables and compared out-of-scanner psychometric measures for verbal fluency and working memory between groups...
February 17, 2017: Neurology
https://www.readbyqxmd.com/read/28213317/developing-and-assessing-the-acceptability-of-an-epilepsy-first-aid-training-intervention-for-patients-who-visit-uk-emergency-departments-a-multi-method-study-of-patients-and-professionals
#6
Darlene A Snape, Myfanwy Morgan, Leone Ridsdale, Steve Goodacre, Anthony G Marson, Adam J Noble
Epilepsy affects around 1% of the UK population; 40% of whom experience two or more seizures annually. However, most Emergency Department (ED) visits by people with epilepsy (PWE) are clinically unnecessary. Evidence highlights that with correct training, seizures can be safely managed by patients and their families within the community. Arguably therefore, PWE who frequently visit the ED might benefit from a self-management intervention that improves their own and their families' confidence and ability in managing seizures...
February 14, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28213316/opportunities-for-epilepsy-outcomes-of-the-milken-institute-state-of-the-science-retreat
#7
Sonya B Dumanis, Ekemini A U Riley, LaTese Briggs, YooRi Kim, Erik Lontok, Danielle Salka, Melissa Stevens
The Milken Institute Center for Strategic Philanthropy has launched a Giving Smarter Program in Epilepsy to inform philanthropists on the state of the science for the epilepsy field, key challenges, and solutions to address them. As part of the program, the Milken Institute Center for Strategic Philanthropy hosted a retreat to identify strategic investments that would accelerate epilepsy research to ultimately improve care. The top three prioritized opportunities from the retreat were to 1) invest in data standards and analytical tool development, 2) support young investigators, and 3) promote cross-sector collaborations especially between basic scientists, preclinical researchers, clinicians, and patients...
February 14, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28212985/nonsteroidal-anti-inflammatory-drugs-in-clinical-and-experimental-epilepsy
#8
REVIEW
Beatrice Mihaela Radu, Florin Bogdan Epureanu, Mihai Radu, Paolo Francesco Fabene, Giuseppe Bertini
Current antiepileptic drugs have limited efficacy and provide little or no benefits in 30% of the patients. Given that a role for brain inflammation in epilepsy has been repeatedly reported in recent years, the potential of anti-inflammatory drugs should be explored in depth, as they may provide new therapeutical approaches in preventing or reducing epileptogenesis. Here, we review preclinical (both in vivo and in vitro) and clinical epilepsy studies in which nonsteroidal antiinflammatory drugs (NSAIDs), i...
February 9, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28212867/protective-effect-of-spermine-against-pentylenetetrazole-kindling-epilepsy-induced-comorbidities-in-mice
#9
Mandeep Kumar, Puneet Kumar
Nitric oxide (NO), an important intracellular signaling molecule is involved in modulation of neuronal transmission. The NO level increases during epileptic activity in animal models of epilepsy. However, its role in epileptic activity remains controversial. Spermine is an endogenous polyamine; possesses anti-oxidant property and has ability to modulate ion channels and NO synthase activity. Therefore, the present study was designed to investigate the role of NO pathway in the neuroprotective effect of spermine, in Pentylenetetrazol (PTZ) induced kindling epilepsy in mice...
February 14, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28212850/human-astrocytes-in-the-diseased-brain
#10
Elena Dossi, Flora Vasile, Nathalie Rouach
Astrocytes are key active elements of the brain that contribute to information processing. They not only provide neurons with metabolic and structural support, but also regulate neurogenesis and brain wiring. Furthermore, astrocytes modulate synaptic activity and plasticity in part by controlling the extracellular space volume, as well as ion and neurotransmitter homeostasis. These findings, together with the discovery that human astrocytes display contrasting characteristics with their rodent counterparts, point to a role for astrocytes in higher cognitive functions...
February 13, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28212398/modelling-the-risk-of-taenia-solium-exposure-from-pork-produced-in-western-kenya
#11
Lian F Thomas, William A de Glanville, Elizabeth A J Cook, Barend M De C Bronsvoort, Ian Handel, Claire N Wamae, Samuel Kariuki, Eric M Fèvre
The tapeworm Taenia solium is the parasite responsible for neurocysticercosis, a neglected tropical disease of public health importance, thought to cause approximately 1/3 of epilepsy cases across endemic regions. The consumption of undercooked infected pork perpetuates the parasite's life-cycle through the establishment of adult tapeworm infections in the community. Reducing the risk associated with pork consumption in the developing world is therefore a public health priority. The aim of this study was to estimate the risk of any one pork meal in western Kenya containing a potentially infective T...
February 17, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28212375/epilepsy-associated-gene-nedd4-2-mediates-neuronal-activity-and-seizure-susceptibility-through-ampa-receptors
#12
Jiuhe Zhu, Kwan Young Lee, Kathryn A Jewett, Heng-Ye Man, Hee Jung Chung, Nien-Pei Tsai
The neural precursor cell expressed developmentally down-regulated gene 4-2, Nedd4-2, is an epilepsy-associated gene with at least three missense mutations identified in epileptic patients. Nedd4-2 encodes a ubiquitin E3 ligase that has high affinity toward binding and ubiquitinating membrane proteins. It is currently unknown how Nedd4-2 mediates neuronal circuit activity and how its dysfunction leads to seizures or epilepsies. In this study, we provide evidence to show that Nedd4-2 mediates neuronal activity and seizure susceptibility through ubiquitination of GluA1 subunit of the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor, (AMPAR)...
February 17, 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28212175/advances-in-epilepsy-gene-discovery-and-implications-for-epilepsy-diagnosis-and-treatment
#13
Joseph D Symonds, Sameer M Zuberi, Michael R Johnson
PURPOSE OF REVIEW: Epilepsy genetics is shifting from the academic pursuit of gene discovery to a clinical discipline based on molecular diagnosis and stratified medicine. We consider the latest developments in epilepsy genetics and review how gene discovery in epilepsy is influencing the clinical classification of epilepsy and informing new therapeutic approaches and drug discovery. RECENT FINDINGS: Recent studies highlighting the importance of mutation in GABA receptors, NMDA receptors, potassium channels, G-protein coupled receptors, mammalian target of rapamycin pathway and chromatin remodeling are discussed...
February 15, 2017: Current Opinion in Neurology
https://www.readbyqxmd.com/read/28211645/disability-and-inclusive-education-in-an-italian-region-analysis-of-the-data-for-the-school-year-2012-2013
#14
Evamaria Lanzarini, Antonia Parmeggiani
BACKGROUND: In Italy, pupils with disabilities enroll in mainstream schools and attend the ordinary classes at all educational levels. For the past twelve years, the Region Emilia Romagna has witnessed an increase in the number of children who are in need of special support. The aim of the study was to identify the causes of disability in children attending public schools during the school year 2012-2013. METHODS: The study was designed as a cross-sectional survey...
February 17, 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28211317/primary-human-cytomegalovirus-hcmv-infection-in-pregnancy
#15
Horst Buxmann, Klaus Hamprecht, Matthias Meyer-Wittkopf, Klaus Friese
BACKGROUND: In 0.5-4% of pregnancies, the prospective mother sustains a primary infection with human cytomegalovirus (HCMV). An HCMV infection of the fetus in the first or second trimester can cause complex post-encephalitic impairment of the infant brain, leading to motor and mental retardation, cerebral palsy, epilepsy, retinal defects, and progressive hearing loss. METHODS: This review is based on pertinent publications from January 2000 to October 2016 that were retrieved by a selective search in PubMed employing the terms "cytomegalovirus and pregnancy" and "congenital cytomegalovirus...
January 27, 2017: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28211120/the-effect-of-sevoflurane-on-electrocorticographic-spike-activity-in-pediatric-patients-with-epilepsy
#16
Shigekazu Tanaka, Yutaka Oda, Masayoshi Ryokai, Takehiro Uda, Noritsugu Kunihiro, Ichiro Kuki, Ryu Okutani
BACKGROUND: Electrocorticogram (ECoG) spike activity is enhanced under general anesthesia with 1.5 minimum alveolar concentration (MAC) sevoflurane compared with lower concentrations in adult patients with epilepsy. However, the effect of concentration of sevoflurane on ECoG in children with epilepsy is less known. AIMS: The primary endpoint was to investigate the effects of sevoflurane on ECoG spike activity in pediatric patients undergoing epilepsy surgery. The secondary endpoint was to examine its effects on baseline ECoG including burst suppression...
February 17, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28210849/developmental-changes-in-notch1-and-nle1-expression-in-a-genetic-model-of-absence-epilepsy
#17
Fariba Karimzadeh, Sayed Mostafa Modarres Mousavi, Fatemeh Alipour, Hassan Hosseini Ravandi, Stjepana Kovac, Ali Gorji
Childhood absence epilepsy (CAE) is an epilepsy syndrome with seizures occurring in the early childhood, highlighting that seizures susceptibility in CAE is dependent on brain development. The Notch 1 signalling pathway is important in brain development, yet the role of the Notch1 signalling pathway in CAE remains elusive. We here explored Notch1 and its modulator notchless homologue 1 (NLE1) expression in WAG/Rij and control rats using immunohistochemistry. Functional Notch 1 effects were assessed in WAG/Rij rats in vivo...
February 16, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28210509/recurrence-of-postoperative-stress-induced-cardiomyopathy-resulting-from-status-epilepticus
#18
Grant A Miller, Yousef M Ahmed, Nicki S Tarant
Introduction. Classically, stress-induced cardiomyopathy (SIC), also known as takotsubo cardiomyopathy, displays the pathognomonic feature of reversible left ventricular apical ballooning without coronary artery stenosis following stressful event(s). Temporary reduction in ejection fraction (EF) resolves spontaneously. Variants of SIC exhibiting mid-ventricular regional wall motion abnormalities have been identified. Recent case series present SIC as a finding in association with sudden unexplained death in epilepsy (SUDEP)...
2017: Case Reports in Critical Care
https://www.readbyqxmd.com/read/28210205/the-atp-gated-p2x7-receptor-as-a-target-for-the-treatment-of-drug-resistant-epilepsy
#19
REVIEW
Edward Beamer, Wolfgang Fischer, Tobias Engel
Despite the progress made in the development of new antiepileptic drugs (AEDs), the biggest challenges that epilepsy presents to drug development have remained unchanged for the last 80 years: finding a treatment with potential for modifying disease progression and reducing the percentage of patients resistant to all pharmacological interventions. The mechanism of action of the majority of AEDs is based on blocking Na(+) and/or Ca(2+) channels, promotion of GABA or inhibition of glutamate signaling. In order for further progress to be made, however, a fuller picture of epilepsy will need to be considered, including changes to blood-brain barrier permeability, synaptic plasticity, network reorganization, and gliosis...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28209769/seizures-in-children-with-cerebral-palsy-and-white-matter-injury
#20
Monica S Cooper, Mark T Mackay, Michael Fahey, Dinah Reddihough, Susan M Reid, Katrina Williams, A Simon Harvey
OBJECTIVE: The goal of this study was to describe the prevalence, syndromes, and evolution of seizure disorders in children with cerebral palsy (CP) due to white matter injury (WMI). METHODS: For this population-based cohort study, brain MRI scans and medical records were reviewed in children in the Victorian Cerebral Palsy Register born between 1999 and 2006 recorded as having WMI. Children were excluded if they had features of an undiagnosed syndrome, associated cortical malformation or injury, or no medical contact in the preceding year...
February 16, 2017: Pediatrics
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