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New medications for epilepsy

Chin B Eap
The use of pharmacogenetic tests was already being proposed in psychiatry in the early 2000s because genetic factors were known to influence drug pharmacokinetics and pharmacodynamics. However, sufficient levels of evidence to justify routine use have been achieved for only a few tests (eg, major histocompatibility complex, class I, B, allele 1502 [HLA-B*1502] for carbamazepine in epilepsy and bipolar disorders); many findings are too preliminary or, when replicated, of low clinical relevance because of a small effect size...
September 2016: Dialogues in Clinical Neuroscience
Pasquale Striano, Vincenzo Belcastro, Antonietta Coppola, Carlo Minetti, Salvatore Striano
INTRODUCTION: Despite optimal medical treatment, up to 30% of patients with epilepsy continue to experience recurrent seizures, and the challenge for new more efficacious and better-tolerated drugs is continuing. New antiepileptic drugs include the evolution of preexisting drugs and new compounds identified through the investigation of additional molecular targets, such as SV2A synaptic vesicle protein, voltage-gated potassium channels, ionotropic and metabotropic glutamate receptors, and gap junctions...
October 5, 2016: Clinical Neuropharmacology
Hadi Ratham Al Ghayab, Yan Li, Shahab Abdulla, Mohammed Diykh, Xiangkui Wan
Electroencephalogram (EEG) signals are used broadly in the medical fields. The main applications of EEG signals are the diagnosis and treatment of diseases such as epilepsy, Alzheimer, sleep problems and so on. This paper presents a new method which extracts and selects features from multi-channel EEG signals. This research focuses on three main points. Firstly, simple random sampling (SRS) technique is used to extract features from the time domain of EEG signals. Secondly, the sequential feature selection (SFS) algorithm is applied to select the key features and to reduce the dimensionality of the data...
June 2016: Brain Informatics
Chandni Prakash, Susan Hatters-Friedman, Charmian Moller-Olsen, Abigail North
INTRODUCTION: Pregnancy is a vulnerable period for recurrence of bipolar disorder. Discontinuation of mood stabilisers during pregnancy and the postpartum period can significantly increase the risk of recurrence of bipolar disorder. Lamotrigine is an anti-epileptic drug that has been approved for the maintenance treatment of bipolar disorder. Epilepsy literature has indicated that lamotrigine has a reassuring safety profile in pregnancy but there is little information on its effectiveness and safety in pregnant women with mental disorders...
August 15, 2016: Psychopharmacology Bulletin
A R Rao, M Yourshaw, B Christensen, S F Nelson, B Kerner
Bipolar disorder (BD) is a common, complex and heritable psychiatric disorder characterized by episodes of severe mood swings. The identification of rare, damaging genomic mutations in families with BD could inform about disease mechanisms and lead to new therapeutic interventions. To determine whether rare, damaging mutations shared identity-by-descent in families with BD could be associated with disease, exome sequencing was performed in multigenerational families of the NIMH BD Family Study followed by in silico functional prediction...
October 11, 2016: Molecular Psychiatry
Antonio Trabacca, Teresa Vespino, Antonella Di Liddo, Luigi Russo
Cerebral palsy (CP) is one of the most frequent causes of child disability in developed countries. Children with CP need lifelong assistance and care. The current prevalence of CP in industrialized countries ranges from 1.5 to 2.5 per 1,000 live births, with one new case every 500 live births. Children with CP have an almost normal life expectancy and mortality is very low. Despite the low mortality rate, 5%-10% of them die during childhood, especially when the severe motor disability is comorbid with epilepsy and severe intellectual disability...
2016: Journal of Multidisciplinary Healthcare
S Keddie, H Angus-Leppan, T Parker, S Toescu, A Nash, O Adewunmi, Rsn Liu
OBJECTIVE: To examine patient knowledge about sudden unexpected death in epilepsy (SUDEP) compared to other risks in epilepsy. To explore patients' experiences surrounding SUDEP disclosure and opinions on how information should be delivered. DESIGN: A cross-sectional questionnaire. SETTING: Royal Free Hospital, London outpatient epilepsy clinics. PARTICIPANTS: New and follow-up patients attending epilepsy clinics at a London teaching hospital over six months...
September 2016: JRSM Open
S Tang, E Hughes, K Lascelles, M A Simpson, D K Pal
We report a de novo SMARCA2 missense mutation discovered on exome sequencing in a patient with myoclonic astatic epilepsy, leading to reassessment and identification of Nicolaides-Baraitser syndrome. This de novo SMARCA2 missense mutation c.3721C>G, p.Gln1241Glu is the only reported mutation on exon 26 outside the ATPase domain of SMARCA2 to be associated with Nicolaides-Baraitser syndrome and adds to chromatin remodeling as a pathway for epileptogenesis. © 2016 The Authors. American Journal of Medical Genetics Part A published by Wiley Periodicals, Inc...
September 26, 2016: American Journal of Medical Genetics. Part A
Aurora R Barros-Barbosa, Fátima Ferreirinha, Ângela Oliveira, Marina Mendes, M Graça Lobo, Agostinho Santos, Rui Rangel, Julie Pelletier, Jean Sévigny, J Miguel Cordeiro, Paulo Correia-de-Sá
Refractoriness to existing medications of up to 80 % of the patients with mesial temporal lobe epilepsy (MTLE) prompts for finding new antiepileptic drug targets. The adenosine A2A receptor emerges as an interesting pharmacological target since its excitatory nature partially counteracts the dominant antiepileptic role of endogenous adenosine acting via inhibitory A1 receptors. Gain of function of the excitatory A2A receptor has been implicated in a significant number of brain pathologies commonly characterized by neuronal excitotoxicity...
September 20, 2016: Purinergic Signalling
M Sillanpää, D Schmidt
PURPOSE: To review the long-term outcome of epilepsy in population-based studies. METHOD: Analysis of population-based studies. RESULTS: About two of three patients with new-onset epilepsy will, in the long run, enter five-year terminal remission. Chances for remission are best for those with idiopathic or cryptogenic epilepsy. It is unclear whether the seizure outcome has improved over the last several decades. Social outcome, however, may have become better because of the improved level of knowledge on and public attitudes toward people with epilepsy, and possibly fewer prejudices at home, daycare, school, military and labor market...
September 9, 2016: Seizure: the Journal of the British Epilepsy Association
Kelly G Knupp, Erin Leister, Jason Coryell, Katherine C Nickels, Nicole Ryan, Elizabeth Juarez-Colunga, William D Gaillard, John R Mytinger, Anne T Berg, John Millichap, Douglas R Nordli, Sucheta Joshi, Renée A Shellhaas, Tobias Loddenkemper, Dennis Dlugos, Elaine Wirrell, Joseph Sullivan, Adam L Hartman, Eric H Kossoff, Zachary M Grinspan, Lorie Hamikawa
OBJECTIVE: Infantile spasms (IS) represent a severe epileptic encephalopathy presenting in the first 2 years of life. Recommended first-line therapies (hormonal therapy or vigabatrin) often fail. We evaluated response to second treatment for IS in children in whom the initial therapy failed to produce both clinical remission and electrographic resolution of hypsarhythmia and whether time to treatment was related to outcome. METHODS: The National Infantile Spasms Consortium established a multicenter, prospective database enrolling infants with new diagnosis of IS...
September 12, 2016: Epilepsia
Rolla Shbarou
The management of early-onset, genetically determined epilepsies is often challenging. First-line anti-epileptic drugs (AEDs) often include phenobarbital, phenytoin, oxcarbazepine, carbamazepine, clonazepam, levetiracetam, and valproic acid. Combinations of medications are used in these patients with often intractable seizures, and they include topiramate, clobazam, felbamate, lacosamide, lamotrigine, rufinamide, vigabatrin, ACTH, oral steroids, and the ketogenic diet. Vagus nerve stimulator therapy offers some relief in selected patients...
October 2016: Current Treatment Options in Neurology
Sheng Yang, Curtis Tatsuoka, Kaushik Ghosh, Nuria Lacuey-Lecumberri, Samden D Lhatoo, Satya S Sahoo
Recent advances in brain fiber tractography algorithms and diffusion Magnetic Resonance Imaging (MRI) data collection techniques are providing new approaches to study brain white matter connectivity, which play an important role in complex neurological disorders such as epilepsy. Epilepsy affects approximately 50 million persons worldwide and it is often described as a disorder of the cortical network organization. There is growing recognition of the need to better understand the role of brain structural networks in the onset and propagation of seizures in epilepsy using high resolution non-invasive imaging technologies...
2016: AMIA Summits on Translational Science Proceedings
Peter B Kang, James F Bale, Mark Mintz, Sucheta M Joshi, Donald L Gilbert, Carrie Radabaugh, Holly Ruch-Ross
OBJECTIVES: More than a decade has passed since the last major workforce survey of child neurologists in the United States; thus, a reassessment of the child neurology workforce is needed, along with an inaugural assessment of a new related field, neurodevelopmental disabilities. METHODS: The American Academy of Pediatrics and the Child Neurology Society conducted an electronic survey in 2015 of child neurologists and neurodevelopmental disabilities specialists...
September 27, 2016: Neurology
Basanagoud Mudigoudar, Sarah Weatherspoon, James W Wheless
The medical management of the epilepsy syndromes of early childhood (eg, infantile spasms, Dravet syndrome, and Lennox-Gastaut syndrome) is challenging; and requires careful evaluation, classification, and treatment. Pharmacologic therapy continues to be the mainstay of management for these children, and as such it is important for the clinician to be familiar with the role of new antiepileptic drugs. This article reports the clinical trial data and personal experience in treating the severe epilepsies of childhood with the recently Food and Drug Administration-approved new antiepileptic drugs (vigabatrin, rufinamide, perampanel, and clobazam) and those in clinical trials (cannabidiol, stiripentol, and fenfluramine)...
May 2016: Seminars in Pediatric Neurology
Tarek Shaker, Anne Bernier, Lionel Carmant
Focal cortical dysplasia is a common cause of medication resistant epilepsy. A better understanding of its presentation, pathophysiology and consequences have helped us improved its treatment and outcome. This paper reviews the most recent classification, pathophysiology and imaging findings in clinical research as well as the knowledge gained from studying genetic and lesional animal models of focal cortical dysplasia. This review of this recently gained knowledge will most likely help develop new research models and new therapeutic targets for patients with epilepsy associated with focal cortical dysplasia...
May 2016: Seminars in Pediatric Neurology
Feng Yang, Xiaolong Sun, Yinxiu Ding, Hui Ma, Tangpeng Ou Yang, Yue Ma, Dong Wei, Wen Li, Tianle Xu, Wen Jiang
Unraveling mechanisms underlying epileptogenesis after brain injury is an unmet medical challenge. Although histopathological studies have revealed that reactive astrogliosis and tissue acidosis are prominent features in epileptogenic foci, their roles in epileptogenesis remain unclear. Here, we explored whether astrocytic acid-sensing ion channel-1a (ASIC1a) contributes to the development of chronic epilepsy. High levels of ASIC1a were measured in reactive astrocytes in the hippocampi of patients with temporal lobe epilepsy (TLE) and epileptic mice...
2016: Scientific Reports
Michal Tavor, Miri Y Neufeld, Gabriel Chodick, Oren Zack, Ayala Krakov, Dan Slodownik, Shlomo Moshe
BACKGROUND: The vocational parameters regarding epilepsy are not well established. Our aim was to assess the risk of seizures as a function of occupational stress and disease severity in military recruits of the IDF (Israel Defense Force) and to examine the effect of new classification criteria (used between the late nineties and early two thousands) in comparison with that of previous criteria (used during the mid-eighties to mid-nineties). METHODS: The medical records of over 150,000 18-year-old men recruited to the IDF between the mid-nineties and the mid-two thousands were used to assemble a cohort, which was followed for a period of 36months...
September 2016: Epilepsy & Behavior: E&B
Brian Appavu, Lisa Vanatta, John Condie, John F Kerrigan, Randa Jarrar
PURPOSE: We aimed to study whether ketogenic diet (KD) therapy leads to resolution of super-refractory status epilepticus in pediatric patients without significant harm. METHOD: A retrospective review was performed at Phoenix Children's Hospital on patients with super-refractory status epilepticus undergoing ketogenic diet therapy from 2011 to 2015. RESULTS: Ten children with super-refractory status epilepticus, ages 2-16 years, were identified...
October 2016: Seizure: the Journal of the British Epilepsy Association
Genevieve Rayner, Graeme D Jackson, Sarah J Wilson
Depression is common but underdiagnosed in epilepsy. A quarter of patients meet criteria for a depressive disorder, yet few receive active treatment. We hypothesize that the presentation of depression is less recognizable in epilepsy because the symptoms are heterogeneous and often incorrectly attributed to the secondary effects of seizures or medication. Extending the ILAE's new phenomenological approach to classification of the epilepsies to include psychiatric comorbidity, we use data-driven profiling of the symptoms of depression to perform a preliminary investigation of whether there is a distinctive symptom-based phenotype of depression in epilepsy that could facilitate its recognition in the neurology clinic...
July 26, 2016: Epilepsy & Behavior: E&B
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