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https://www.readbyqxmd.com/read/28528284/biomarkers-in-epilepsy-a-modelling-perspective
#1
Sven C van Dijkman, Rob A Voskuyl, Elizabeth C de Lange
Biomarkers can be categorised from type 0 (genotype or phenotype), through 6 (clinical scales), each level representing a part of the processes involved in the biological system and drug treatment. This classification facilitates the identification and connection of information required to fully (mathematically) model a disease and its treatment using integrated information from biomarkers. Two recent reviews thoroughly discussed the current status and development of biomarkers for epilepsy, but a path towards the integration of such biomarkers for the personalisation of anti-epileptic drug treatment is lacking...
May 17, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28528210/do-patients-need-to-stay-in-bed-all-day-in-the-epilepsy-monitoring-unit-safety-data-from-a-non-restrictive-setting
#2
Laura Craciun, Jørgen Alving, Elena Gardella, Daniella Terney, Pirgit Meritam, Melita Cacic Hribljan, Sándor Beniczky
PURPOSE: To assess whether injuries occur more often in an Epilepsy Monitoring Unit (EMU) where portable EEG amplifiers are used, and where patients can freely move within a large area during the monitoring. METHODS: Patients were monitored at the Danish Epilepsy Center, in an EMU specifically designed for this purpose, and they were under continuous surveillance by personnel dedicated to the EMU. Adverse events (AEs) - including injuries, were prospectively noted, as part of the safety policy of the hospital...
May 13, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28528202/microrna-129-5p-inhibits-the-development-of-autoimmune-encephalomyelitis-related-epilepsy-by-targeting-hmgb1-through-the-tlr4-nf-kb-signaling-pathway
#3
Ai-Hua Liu, Ya-Ting Wu, Yu-Ping Wang
The study aimed to explore the effects of microRNA-129-5p (miR-129-5p) on the development of autoimmune encephalomyelitis (AE)-related epilepsy by targeting HMGB1 through the TLR4/NF-kB signaling pathway in a rat model. AE-related epilepsy models were established. Sprague-Dawley (SD) rats were randomly divided into control, model, miR-129-5p mimics, miR-129-5p inhibitor, HMGB1 shRNA, TLR4/NF-kB (TLR4/NF-kB signaling pathway was inhibited) and miR-129-5p mimics+HMGB1 shRNA groups respectively. Latency to a first epilepsy seizure attack was recorded...
May 17, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28528187/anticonvulsant-activity-of-pseudospondias-microcarpa-a-rich-engl-hydroethanolic-leaf-extract-in-mice-the-role-of-excitatory-inhibitory-neurotransmission-and-nitric-oxide-pathway
#4
Donatus W Adongo, Priscilla K Mante, Kennedy K E Kukuia, Robert P Biney, Eric Boakye-Gyasi, Charles K Benneh, Elvis O Ameyaw, Eric Woode
ETHNOPHARMACOLOGICAL RELEVANCE: Pseudospondias microcarpa (A. Rich) Engl. is a plant used for managing various diseases including central nervous system disorders. AIM OF THE STUDY: This study explored the anticonvulsant activity of P. microcarpa hydroethanolic leaf extract (PME) as well as possible mechanism(s) of action in animal models. METHODS: Effects of PME was assessed in electroconvulsive (the maximal electroshock and 6-Hz seizures) and chemoconvulsive (pentylenetetrazole-, picrotoxin-, isoniazid-, 4-aminopyridine-, and strychnine-induced seizures) models of epilepsy...
May 17, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28527977/the-association-of-arachnoid-cysts-and-focal-epilepsy-hospital-based-case-control-study
#5
Ivan Nikolić, Aleksandar Ristić, Nikola Vojvodić, Vladimir Baščarević, Andrej Ilanković, Ivana Berisavac, Tijana Đukić, Dragoslav Sokić
OBJECTIVE: Arachnoid cysts (ACs) are common findings in brain MRI. Our aim was to examine frequency and distribution of ACs in patients with focal epilepsy, compared to healthy control subjects, and to investigate the association of AC and electro-clinical features of focal epilepsy. PATIENTS AND METHODS: We performed a retrospective case-control study, using data from 180 patients that underwent video-EEG monitoring between 2009 and 2012, and of 114 healthy controlled subjects...
May 12, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28527573/retinoid-related-orphan-receptor-%C3%AE-and-transcriptional-control-of-neuronal-differentiation
#6
Hong Liu, Michihiko Aramaki, Yulong Fu, Douglas Forrest
The ability to generate neuronal diversity is central to the function of the nervous system. Here we discuss the key neurodevelopmental roles of retinoid-related orphan receptor β (RORβ) encoded by the Rorb (Nr1f2) gene. Recent studies have reported loss of function of the human RORB gene in cases of familial epilepsy and intellectual disability. Principal sites of expression of the Rorb gene in model species include sensory organs, the spinal cord, and brain regions that process sensory and circadian information...
2017: Current Topics in Developmental Biology
https://www.readbyqxmd.com/read/28527369/prolonged-epileptiform-eeg-runs-are-associated-with-persistent-seizures-in-juvenile-myoclonic-epilepsy
#7
Vibeke Arntsen, Trond Sand, Marte R Syvertsen, Eylert Brodtkorb
OBJECTIVE: In juvenile myoclonic epilepsy (JME), various EEG characteristics have been suggested as poor prognostic signs, but their significance is unclear. The aim of this study was to assess the influence of EEG variables on seizure and psychosocial outcome after a follow-up exceeding 20 years. METHODS: 396 EEG recordings were available for assessment in 40 patients (42 complete digital, 330 paper segments and 24 written reports only). Mean follow-up was 31 years (range 20-68)...
May 8, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28527263/-racemose-neurocysticercosis-neuroimaging-guides-the-diagnosis
#8
Carlos Hugo Zapata, Sergio Alberto Vargas, Carlos Santiago Uribe
Neurocysticercosis is the leading cause of parasitosis of the central nervous system and acquired epilepsy in developing countries. The clinical manifestations of neurocysticercosis, especially its racemose variant, are pleomorphic and unspecific, characteristics that hinder the diagnosis and make it a challenge for the clinician.The objective of this report was to describe two cases of racemose neurocysticercosis in which neuroimaging led to the definitive diagnosis. The first case involved a patient with persistent headache and focal neurological signs...
April 1, 2017: Biomédica: Revista del Instituto Nacional de Salud
https://www.readbyqxmd.com/read/28527108/increased-expression-of-brain-derived-neurotrophic-factor-transcripts-i-and-vi-camp-response-element-binding-and-glucocorticoid-receptor-in-the-cortex-of-patients-with-temporal-lobe-epilepsy
#9
G A Martínez-Levy, L Rocha, F Rodríguez-Pineda, M A Alonso-Vanegas, A Nani, R M Buentello-García, M Briones-Velasco, D San-Juan, J Cienfuegos, C S Cruz-Fuentes
A body of evidence supports a relevant role of brain-derived neurotrophic factor (BDNF) in temporal lobe epilepsy (TLE). Magnetic resonance data reveal that the cerebral atrophy extends to regions that are functionally and anatomically connected with the hippocampus, especially the temporal cortex. We previously reported an increased expression of BDNF messenger for the exon VI in the hippocampus of temporal lobe epilepsy patients compared to an autopsy control group. Altered levels of this particular transcript were also associated with pre-surgical use of certain psychotropic...
May 19, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28527083/shared-mechanisms-of-epilepsy-migraine-and-affective-disorders
#10
Davide Zarcone, Simona Corbetta
Since the nineteenth century several clinical features have been observed in common between migraine and epilepsy (such as episodic attacks, triggering factors, presence of aura, frequent familiarity), but only in recent years researchers have really engaged in finding a common pathogenic mechanism. From studies of disease incidence, we understand how either migraine among patients with epilepsy or epilepsy among migraine patients are more frequent than in the general population. This association may result from a direct causality, by the same environmental risk factors and/or by a common genetic susceptibility...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28527061/ketogenic-diet-in-migraine-rationale-findings-and-perspectives
#11
Piero Barbanti, Luisa Fofi, Cinzia Aurilia, Gabriella Egeo, Massimiliano Caprio
Ketogenic diet (KD) is an established treatment for refractory pediatric epilepsy and a promising therapy for diverse neurological diseases. Clinical data on KD in migraine-obtained from 150 patients investigated in case reports and prospective studies-suggest that KD may be a rapid onset effective prophylaxis for episodic and chronic migraine. KD would contribute to restore brain excitability and metabolism and to counteract neuroinflammation in migraine, although its precise mechanism is still unclear. Randomized controlled studies are needed to confirm the usefulness of KD in migraine and to investigate its optimal duration, repeatability, feasibility in normal weight subjects, efficacy in pediatric population and association to conventional migraine prophylaxis...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28526576/carvacrol-promotes-neuroprotection-in-the-mouse-hemiparkinsonian-model
#12
L M Dati, H Ulrich, C C Real, Z P Feng, H S Sun, L R Britto
Carvacrol is a monoterpene that has been linked to neuroprotection in several animal models of neurodegeneration, including ischemia, epilepsy and traumatic neuronal injury. In this study, we investigated the effects of carvacrol (i.p.) upon the neurodegeneration induced by 6-hydroxy-dopamine unilateral intrastriatal injections in mice. We have also used the cylinder test to assess the behavioral effects of carvacrol in that model of Parkinsońs disease, and immunoblots to evaluate the levels of caspase-3 and TRPM7, one of major targets of carvacrol...
May 16, 2017: Neuroscience
https://www.readbyqxmd.com/read/28526280/an-overview-of-medical-risk-factors-for-childhood-psychosis-implications-for-research-and-treatment
#13
REVIEW
Marianna Giannitelli, Angèle Consoli, Marie Raffin, Renaud Jardri, Douglas F Levinson, David Cohen, Claudine Laurent-Levinson
OBJECTIVE: Psychotic disorders in childhood and early adolescence often progress to chronic schizophrenia, but in many cases there are diagnosable medical and genetic causes or risk factors. We reviewed our clinical experience and the relevant literature to identify these factors and to define their clinical features, appropriate work-up and treatment. METHOD: We reviewed the results of comprehensive medical evaluations of 160 psychotic children and adolescents in our center...
May 16, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28526213/epidemiology-of-neurocysticercosis-and-epilepsy-is-everything-described
#14
REVIEW
Jose F Tellez-Zenteno, Lizbeth Hernandez-Ronquillo
In recent years clinical and epidemiological research on cysticercosis has gained significant interest in some countries, especially in Latin American countries and some countries in Asia and Africa. For many years it has been proposed that the higher prevalence of epilepsy seen in some regions such as Latin-America could be explained by parasitic infections, particularly neurocysticercosis (NCC). In this review we discussed selected epidemiological topics of the association of NCC and epilepsy, such as global distribution around the world, identification of NCC in developed countries, drug resistant epilepsy and NCC...
May 16, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28526038/phosphorylation-of-tau-at-y18-but-not-tau-fyn-binding-is-required-for-tau-to-modulate-nmda-receptor-dependent-excitotoxicity-in-primary-neuronal-culture
#15
Takashi Miyamoto, Liana Stein, Reuben Thomas, Biljana Djukic, Praveen Taneja, Joseph Knox, Keith Vossel, Lennart Mucke
BACKGROUND: Hyperexcitability of neuronal networks can lead to excessive release of the excitatory neurotransmitter glutamate, which in turn can cause neuronal damage by overactivating NMDA-type glutamate receptors and related signaling pathways. This process (excitotoxicity) has been implicated in the pathogenesis of many neurological conditions, ranging from childhood epilepsies to stroke and neurodegenerative disorders such as Alzheimer's disease (AD). Reducing neuronal levels of the microtubule-associated protein tau counteracts network hyperexcitability of diverse causes, but whether this strategy can also diminish downstream excitotoxicity is less clear...
May 19, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/28525652/determination-of-scn1a-genetic-variants-in-mexican-patients-with-refractory-epilepsy-and-dravet-syndrome
#16
R E Jiménez-Arredondo, A J L Brambila-Tapia, F M Mercado-Silva, M T Magaña-Torres, L E Figuera
Mutations in the SCN1A gene can result in syndromes associated with epilepsy, including the Dravet syndrome (DS). However, the prevalence of such mutations in these diseases varies widely between different studies, and has not been examined in Mexican patients with epilepsy. Therefore, the objective of this study was to determine the frequency of SCN1A mutations (in the exon 26) in a cohort of Mexican patients with DS and refractory epilepsy (RE). We recruited 24 Mexican patients (14 males and 10 females), of which 15 were diagnosed with RE and 9 were diagnosed with DS...
May 18, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28524796/improvement-of-visual-field-defects-after-focal-resection-for-occipital-lobe-epilepsy-case-report
#17
Takahiro Yamamoto, Tadashi Hamasaki, Hideo Nakamura, Kazumichi Yamada
Improvement of visual field defects after surgical treatment for occipital lobe epilepsy is rare. Here, the authors report on a 24-year-old man with a 15-year history of refractory epilepsy that developed after he had undergone an occipital craniotomy to remove a cerebellar astrocytoma at the age of 4. His seizures started with an elementary visual aura, followed by secondary generalized tonic-clonic convulsion. Perimetry revealed left-sided incomplete hemianopia, and MRI showed an old contusion in the right occipital lobe...
May 19, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28524224/-epileptic-encephalopathies-in-infancy-how-do-we-treat-them-does-the-aetiology-influence-the-response-to-treatment
#18
S Roldan
INTRODUCTION: Resistance to treatments is a common feature of Ohtahara, Aicardi, West and Dravet syndromes, as well as malignant migrating epilepsy in infancy. AIMS: To update the therapeutic management and to analyse whether the aetiology somehow determines the treatment. DEVELOPMENT: Convulsive seizures in the first year of life may be due to a potentially treatable aetiology, which makes it essential to carry out a complete evaluation so as to be able to begin, as early as possible, the most suitable and the non-specific symptomatic treatments to control the seizures, which prevents or minimises their deleterious effects...
May 17, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28524223/-infantile-epileptic-encephalopathies-what-matters-is-genetics
#19
J J Garcia-Penas, M Jimenez-Legido
INTRODUCTION: Epileptic encephalopathies in infancy are defined as conditions where the sustained epileptic activity itself may contribute to the severe neurological and cognitive impairment. These epileptic encephalopathies include Ohtahara syndrome, early myoclonic epileptic encephalopathy, West syndrome, Dravet syndrome, and malignant migrating epilepsy in infancy. These syndromes result from identifiable primary causes, such as structural, neurodegenerative, metabolic, or genetic defects...
May 17, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28524221/-epileptic-spasms-in-infants-beyond-hypsarrhythmia
#20
M Garcia-Fernandez
Epileptic spasms are the most frequent type of epileptic seizures in infants. They can also occur beyond the period of infancy, within the context of other epileptic encephalopathies or as an expression of a focal or generalised epilepsy. The clinical semiology of epileptic spasms varies greatly. They sometimes consist of very subtle clinical manifestations, which occur in series, without the typical axorhizomelic contraction, or in association with focal seizures. The critical EEG correlate is also very variable and basically consists of the combination of a hypervoltage slow wave, a bout of rapid low-amplitude activity or a diffuse attenuation of the trace...
May 17, 2017: Revista de Neurologia
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