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https://www.readbyqxmd.com/read/28640707/response-assessment-in-neuro-oncology-clinical-trials
#1
Patrick Y Wen, Susan M Chang, Martin J Van den Bent, Michael A Vogelbaum, David R Macdonald, Eudocia Q Lee
Development of novel therapies for CNS tumors requires reliable assessment of response and progression. This requirement has been particularly challenging in neuro-oncology for which contrast enhancement serves as an imperfect surrogate for tumor volume and is influenced by agents that affect vascular permeability, such as antiangiogenic therapies. In addition, most tumors have a nonenhancing component that can be difficult to accurately quantify. To improve the response assessment in neuro-oncology and to standardize the criteria that are used for different CNS tumors, the Response Assessment in Neuro-Oncology (RANO) working group was established...
June 22, 2017: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28629473/emergency-treatment-with-levetiracetam-or-phenytoin-in-status-epilepticus-in-children-the-eclipse-study-study-protocol-for-a-randomised-controlled-trial
#2
Mark D Lyttle, Carrol Gamble, Shrouk Messahel, Helen Hickey, Anand Iyer, Kerry Woolfall, Amy Humphreys, Naomi E A Bacon, Louise Roper, Franz E Babl, Stuart R Dalziel, Mary Ryan, Richard E Appleton
BACKGROUND: Convulsive status epilepticus (CSE) is the most common life-threatening neurological emergency in childhood. These children are also at risk of significant morbidity, with acute and chronic impact on the family and the health and social care systems. The current recommended first-choice, second-line treatment in children aged 6 months and above is intravenous phenytoin (fosphenytoin in the USA), although there is a lack of evidence for its use and it is associated with significant side effects...
June 19, 2017: Trials
https://www.readbyqxmd.com/read/28621831/a-new-rat-model-of-seizures-suitable-for-screening-antiepileptic-electrical-stimulation-therapies
#3
Cristian Sevcencu, Jianhang Jiao, Kristian Rauhe Harreby, Winnie Jensen
The antiepileptic effects of the electrical stimulation therapies developed for patients with intractable epilepsies depend critically on the stimulation parameters, including the pulse duration, current, and frequency. Consequently, optimization of such therapies requires many animals for testing each of the stimulation parameters alone or in combination, which is costly and time consuming. This drawback could be reduced by testing several stimulation paradigms in each animal, but this requires an animal model of long-lasting seizures allowing such repetitive tests...
June 16, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28602856/genetic-resistance-to-kindling-associated-with-alterations-in-circuit-function
#4
M Tansel Kendirli, Edward H Bertram
How a seizure spreads from a focal onset zone to other regions of the brain is not well understood, and animal studies suggest that there is a genetic influence. To understand how genetic factors may influence seizure spread, we examined whether the kindling resistance of WAG/Rij rats, which are slow to develop kindled motor seizures, is independent of the site of seizure induction and thus a global phenomenon, or whether it is circuit specific. We compared the kindling rates (number of stimulations to induce kindled motor seizures) of WAG/Rij rats to the rates of kindling in Sprague Dawley rats...
June 9, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28587649/cognitive-behavioural-therapy-versus-standardised-medical-care-for-adults-with-dissociative-non-epileptic-seizures-codes-statistical-and-economic-analysis-plan-for-a-randomised-controlled-trial
#5
Emily J Robinson, Laura H Goldstein, Paul McCrone, Iain Perdue, Trudie Chalder, John D C Mellers, Mark P Richardson, Joanna Murray, Markus Reuber, Nick Medford, Jon Stone, Alan Carson, Sabine Landau
BACKGROUND: Dissociative seizures (DSs), also called psychogenic non-epileptic seizures, are a distressing and disabling problem for many patients in neurological settings with high and often unnecessary economic costs. The COgnitive behavioural therapy versus standardised medical care for adults with Dissociative non-Epileptic Seizures (CODES) trial is an evaluation of a specifically tailored psychological intervention with the aims of reducing seizure frequency and severity and improving psychological well-being in adults with DS...
June 6, 2017: Trials
https://www.readbyqxmd.com/read/28576350/cannabinoids-in-attention-deficit-hyperactivity-disorder-a-randomised-controlled-trial
#6
Ruth E Cooper, Emma Williams, Seth Seegobin, Charlotte Tye, Jonna Kuntsi, Philip Asherson
Adults with ADHD describe self-medicating with cannabis, with some reporting a preference for cannabis over ADHD medications. A small number of psychiatrists in the US prescribe cannabis medication for ADHD, despite there being no evidence from randomised controlled studies. The EMA-C trial (Experimental Medicine in ADHD-Cannabinoids) was a pilot randomised placebo-controlled experimental study of a cannabinoid medication, Sativex Oromucosal Spray, in 30 adults with ADHD. The primary outcome was cognitive performance and activity level using the QbTest...
May 30, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28532165/16p11-2-microduplication-and-associated-symptoms-a-case-study
#7
Martin Knoll, Kirsten Arnett, Jeremy Hertza
The minimal amount known regarding chromosomal microduplications and microdeletions presents a fascinating new direction of research into better understanding misunderstood symptoms and overall genomic influence. Specifically, the 16p11.2 microduplication has been associated with a myriad of possible cognitive, physical, and emotional symptoms. The purpose of this study is to inform the reader of the biological basis of the 16p11.2 microduplication, review sources that suggest a link between the microduplication and clinically relevant diagnoses/sources of impairment, and to better understand the implications and development of symptoms through the illustration of a case example...
May 22, 2017: Applied Neuropsychology. Child
https://www.readbyqxmd.com/read/28529875/advanced-magnetic-resonance-imaging-and-neuropsychological-assessment-for-detecting-brain-injury-in-a-prospective-cohort-of-university-amateur-boxers
#8
M G Hart, C R Housden, J Suckling, R Tait, A Young, U Müller, V F J Newcombe, I Jalloh, B Pearson, J Cross, R A Trivedi, J D Pickard, B J Sahakian, P J Hutchinson
BACKGROUND/AIM: The safety of amateur and professional boxing is a contentious issue. We hypothesised that advanced magnetic resonance imaging and neuropsychological testing could provide evidence of acute and early brain injury in amateur boxers. METHODS: We recruited 30 participants from a university amateur boxing club in a prospective cohort study. Magnetic resonance imaging (MRI) and neuropsychological testing was performed at three time points: prior to starting training; within 48 h following a first major competition to detect acute brain injury; and one year follow-up...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28516033/the-impact-of-large-structural-brain-changes-in-chronic-stroke-patients-on-the-electric-field-caused-by-transcranial-brain-stimulation
#9
Sena Minjoli, Guilherme B Saturnino, Jakob Udby Blicher, Charlotte J Stagg, Hartwig R Siebner, André Antunes, Axel Thielscher
Transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (TDCS) are two types of non-invasive transcranial brain stimulation (TBS). They are useful tools for stroke research and may be potential adjunct therapies for functional recovery. However, stroke often causes large cerebral lesions, which are commonly accompanied by a secondary enlargement of the ventricles and atrophy. These structural alterations substantially change the conductivity distribution inside the head, which may have potentially important consequences for both brain stimulation methods...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28506440/the-wistar-audiogenic-rat-war-strain-and-its-contributions-to-epileptology-and-related-comorbidities-history-and-perspectives
#10
Norberto Garcia-Cairasco, Eduardo H L Umeoka, José A Cortes de Oliveira
In the context of modeling epilepsy and neuropsychiatric comorbidities, we review the Wistar Audiogenic Rat (WAR), first introduced to the neuroscience international community more than 25years ago. The WAR strain is a genetically selected reflex model susceptible to audiogenic seizures (AS), acutely mimicking brainstem-dependent tonic-clonic seizures and chronically (by audiogenic kindling), temporal lobe epilepsy (TLE). Seminal neuroethological, electrophysiological, cellular, and molecular protocols support the WAR strain as a suitable and reliable animal model to study the complexity and emergent functions typical of epileptogenic networks...
May 11, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28497610/epilepsia-partialis-continua-after-an-anterior-circulation-ischaemic-stroke
#11
C Bentes, A C Franco, A R Peralta, P Viana, H Martins, C Morgado, C Casimiro, C Fonseca, R Geraldes, P Canhão, T Pinho E Melo, T Paiva, J M Ferro
BACKGROUND AND PURPOSE: Although cerebrovascular disorders are the main cause of epilepsia partialis continua (EPC) in adulthood, the frequency of EPC after stroke is unknown. The aim was to prospectively ascertain its frequency 1 year after an ischaemic stroke. METHODS: This was a prospective study of consecutive acute anterior circulation ischaemic stroke patients, previously independent, with an admission National Institutes of Health Stroke Scale score ≥4, an acute ischaemic lesion on imaging and no previous epileptic seizures...
May 12, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/28490738/model-guided-control-of-hippocampal-discharges-by-local-direct-current-stimulation
#12
Faten Mina, Julien Modolo, Fanny Recher, Gabriel Dieuset, Arnaud Biraben, Pascal Benquet, Fabrice Wendling
Neurostimulation is an emerging treatment for drug-resistant epilepsies when surgery is contraindicated. Recent clinical results demonstrate significant seizure frequency reduction in epileptic patients, however the mechanisms underlying this therapeutic effect are largely unknown. This study aimed at gaining insights into local direct current stimulation (LDCS) effects on hyperexcitable tissue, by i) analyzing the impact of electrical currents locally applied on epileptogenic brain regions, and ii) characterizing currents achieving an "anti-epileptic" effect (excitability reduction)...
May 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28485933/hplc-based-activity-profiling-for-gabaa-receptor-modulators-in-extracts-validation-of-an-approach-utilizing-a-larval-zebrafish-locomotor-assay
#13
Fahimeh Moradi-Afrapoli, Samad Nejad Ebrahimi, Martin Smiesko, Matthias Hamburger
Gamma-aminobutyric acid type A (GABAA) receptors are major inhibitory neurotransmitter receptors in the central nervous system and a target for numerous clinically important drugs used to treat anxiety, insomnia, and epilepsy. A series of allosteric GABAA receptor agonists was identified previously with the aid of HPLC-based activity profiling, whereby activity was tracked with an electrophysiological assay in Xenopus laevis oocytes. To accelerate the discovery process, an approach has been established for HPLC-based profiling using a larval zebrafish (Danio rerio) seizure model induced by pentylenetetrazol (PTZ), a pro-convulsant GABAA receptor antagonist...
May 9, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28462087/identification-of-brain-regions-predicting-epileptogenesis-by-serial-18-f-ge-180-positron-emission-tomography-imaging-of-neuroinflammation-in-a-rat-model-of-temporal-lobe-epilepsy
#14
Vera Russmann, Matthias Brendel, Erik Mille, Angela Helm-Vicidomini, Roswitha Beck, Lisa Günther, Simon Lindner, Axel Rominger, Michael Keck, Josephine D Salvamoser, Nathalie L Albert, Peter Bartenstein, Heidrun Potschka
Excessive activation of inflammatory signaling pathways seems to be a hallmark of epileptogenesis. Positron emission tomography (PET) allows in vivo detection of brain inflammation with spatial information and opportunities for longitudinal follow-up scanning protocols. Here, we assessed whether molecular imaging of the 18 kDa translocator protein (TSPO) can serve as a biomarker for the development of epilepsy. Therefore, brain uptake of [(18)F]GE-180, a highly selective radioligand of TSPO, was investigated in a longitudinal PET study in a chronic rat model of temporal lobe epilepsy...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28460334/maximal-exhaustive-treadmill-test-features-in-patients-with-temporal-lobe-epilepsy-search-for-sudden-unexpected-death-biomarkers
#15
Guilherme L Fialho, Arthur G Pagani, Roger Walz, Peter Wolf, Katia Lin
Autonomic dysfunction may account for sudden unexpected death in patients with epilepsy (PWE). On the other hand, low cardiovascular fitness, which may affect autonomic function, is a risk factor for sudden death and all-cause mortality in the general population. Little is known about autonomic variables and cardiovascular response to exercise in PWE. We submitted thirty consecutive PWE with no known cardiovascular diseases to maximal treadmill test, comparing them with matched controls. All individuals were submitted to clinical assessment, 12-lead electrocardiogram (ECG) and echocardiogram to exclude cardiovascular disease...
April 24, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28446244/ketogenic-diet-in-the-treatment-of-epilepsy-in-children-under-the-age-of-2-years-study-protocol-for-a-randomised-controlled-trial
#16
Siobhan Titre-Johnson, Natasha Schoeler, Christin Eltze, Ruth Williams, Katharina Vezyroglou, Helen McCullagh, Nick Freemantle, Simon Heales, Rachel Kneen, Louise Marston, Tim Martland, Irwin Nazareth, Elizabeth Neal, Andrew Lux, Alasdair Parker, Shakti Agrawal, Penny Fallon, J Helen Cross
BACKGROUND: The incidence of epilepsy is greatest in the first 2 years of life, an age group where there is generally a poor prognosis for both seizure control and neurodevelopmental outcome. Early control of seizures can be associated with better developmental outcome but many of the epilepsies presenting in infancy are poorly responsive to antiepileptic medication. The ketogenic diet (KD) is a high-fat, low-carbohydrate diet designed to mimic the effects of starvation on the body. Dietary fat is converted into ketones in the body and used as an energy source by the brain...
April 26, 2017: Trials
https://www.readbyqxmd.com/read/28435493/prehospital-care-for-the-adult-and-pediatric-seizure-patient-current-evidence-based-recommendations
#17
Eric C Silverman, Karl A Sporer, Justin M Lemieux, John F Brown, Kristi L Koenig, Marianne Gausche-Hill, Eric M Rudnick, Angelo A Salvucci, Greg H Gilbert
INTRODUCTION: We sought to develop evidence-based recommendations for the prehospital evaluation and treatment of adult and pediatric patients with a seizure and to compare these recommendations against the current protocol used by the 33 emergency medical services (EMS) agencies in California. METHODS: We performed a review of the evidence in the prehospital treatment of patients with a seizure, and then compared the seizure protocols of each of the 33 EMS agencies for consistency with these recommendations...
April 2017: Western Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28431589/t2-relaxometry-helps-prognosticate-seizure-outcome-in-patients-with-solitary-cerebral-cysticercosis
#18
Aaron de Souza, Atchayaram Nalini, Jitender Saini, Kandavel Thennarasu
OBJECTIVE: Correlate serial T2 relaxometry (T2R) values with long term seizure outcome in patients with solitary cerebral cysticercosis (SCC) in order to establish its usefulness as a prognostic marker in these patients. METHODS: Patients with new-onset seizures due to SCC were imaged serially using a pre-determined MRI protocol at enrolment and after 3, 6, 12 and 24months. T2 relaxometry was performed using a dual echo sequence with maps generated manually from the measured image intensities at the level of the lesion...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28431383/protocolized-hyperventilation-enhances-electroconvulsive-therapy
#19
Aida de Arriba-Arnau, Antonia Dalmau, Virginia Soria, Neus Salvat-Pujol, Carmina Ribes, Ana Sánchez-Allueva, José Manuel Menchón, Mikel Urretavizcaya
BACKGROUND: Hyperventilation is recommended in electroconvulsive therapy (ECT) to enhance seizures and to increase patients' safety. However, more evidence is needed regarding its effects and the optimum method of application. METHODS: This prospective study involving 21 subjects compared two procedures, protocolized hyperventilation (PHV) and hyperventilation as usual (HVau), applied to the same patient in two consecutive sessions. Transcutaneous partial pressure of carbon dioxide (TcPCO2) was measured throughout all sessions...
August 1, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28431366/efficacy-and-safety-of-a-video-eeg-protocol-for-genetic-generalized-epilepsies
#20
Luciana Rodrigues De Marchi, Jeana Torres Corso, Ana Carolina Zetehaku, Carina Gonçalves Pedroso Uchida, Mirian Salvadori Bittar Guaranha, Elza Márcia Targas Yacubian
INTRODUCTION: Video-EEG has been used to characterize genetic generalized epilepsies (GGE). For best performance, sleep recording, photic stimulation, hyperventilation, and neuropsychological protocols are added to the monitoring. However, risks and benefits of these video-EEG protocols are not well established. The aim of this study was to analyze the efficacy and safety of a video-EEG neuropsychological protocol (VNPP) tailored for GGE and compare its value with that of routine EEG (R-EEG)...
May 2017: Epilepsy & Behavior: E&B
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