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https://www.readbyqxmd.com/read/28222432/extracellular-hmgb1-modulates-glutamate-metabolism-associated-with-kainic-acid-induced-epilepsy-like-hyperactivity-in-primary-rat-neural-cells
#1
Yuji Kaneko, Colleen Pappas, Teresita Malapira, Fernando Ĺ Vale, Naoki Tajiri, Cesar V Borlongan
BACKGROUND/AIMS: Neuroinflammatory processes have been implicated in the pathophysiology of seizure/epilepsy. High mobility group box 1 (HMGB1), a non-histone DNA binding protein, behaves like an inflammatory cytokine in response to epileptogenic insults. Kainic acid (KA) is an excitotoxic reagent commonly used to induce epilepsy in rodents. However, the molecular mechanism by which KA-induced HMGB1 affords the initiation of epilepsy, especially the role of extracellular HMGB1 in neurotransmitter expression, remains to be elucidated...
February 20, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28222341/patient-emotions-and-perceptions-of-antiepileptic-drug-changes-and-titration-during-treatment-for-epilepsy
#2
Jesse Fishman, Greg Cohen, Colin Josephson, Ann Marie Collier, Srikanth Bharatham, Ying Zhang, Imane Wild
OBJECTIVE: To investigate the impact of antiepileptic drug (AED) change and dose titration on the emotional well-being of patients with epilepsy. METHODS: Members of an online epilepsy community were invited to voluntarily participate in an online survey. The cross-sectional anonymous survey consisted of 31 multiple choice questions balanced in terms of variety and positivity/negativity of emotions concerning participants' most recent AED change. To substantiate survey results, spontaneous comments from epilepsy-related online forums and social media websites that mentioned participants' experiences with AED medication changes (termed passive listening statements) were analyzed and categorized by theme...
February 18, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28222340/a-comparative-retrospective-exploration-of-the-profiles-of-patients-in-south-africa-diagnosed-with-epileptic-and-psychogenic-non-epileptic-seizures
#3
David G Anderson, Maria Damianova, Skye Hanekom, Marilyn Lucas
Psychogenic non-epileptic seizures (PNES) have a high prevalence globally but the accurate diagnosis of this condition still remains a challenge. This is particularly the case in countries where there is scarce expertise and insufficient affordable medical facilities to which patients have access. The rate of PNES diagnosis in epilepsy units is typically within the range of 20 to 30%. In the context of developing countries, this rate tends to be higher and increases demand on the existing scarce health care capacities...
February 18, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28222339/everyday-memory-impairment-in-patients-with-temporal-lobe-epilepsy-caused-by-hippocampal-sclerosis
#4
Patrícia Rzezak, Ellen Marise Lima, Ana Carolina Gargaro, Erica Coimbra, Silvia de Vincentiis, Tonicarlo Rodrigues Velasco, João Pereira Leite, Geraldo F Busatto, Kette D Valente
OBJECTIVE: Patients with temporal lobe epilepsy caused by hippocampal sclerosis (TLE-HS) have episodic memory impairment. Memory has rarely been evaluated using an ecologic measure, even though performance on these tests is more related to patients' memory complaints. We aimed to measure everyday memory of patients with TLE-HS to age- and gender-matched controls. METHODS: We evaluated 31 patients with TLE-HS and 34 healthy controls, without epilepsy and psychiatric disorders, using the Rivermead Behavioral Memory Test (RBMT), Visual Reproduction (WMS-III) and Logical Memory (WMS-III)...
February 18, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28222338/effect-of-synaptic-adhesion-like-molecule-3-on-epileptic-seizures-evidence-from-animal-models
#5
Jie Li, Ling Chen, Na Wang, Guohui Jiang, Yuqing Wu, Yi Zhang
Axonal sprouting and synaptic reorganization are the primary pathophysiological characteristics of epilepsy. Recent studies demonstrated that synaptic adhesion-like molecule 3 (SALM3) is highly expressed in the central nervous system and plays important roles in neurite outgrowth, branching, and axon guidance, mechanisms that are also observed in epilepsy. However, the expression of SALM3 in the epileptic brain and the effect of SALM3 in the pathogenesis of epilepsy remain unclear. The aims of this study were to investigate SALM3 expression in rat models of epilepsy and to explore the functional significance of SALM3 in epilepsy...
February 17, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28222320/antioxidant-polymorphisms-do-not-influence-the-risk-of-epilepsy-or-its-drug-resistance-after-neonatal-hypoxic-ischemic-brain-injury
#6
Katarina Esih, Katja Goričar, Vita Dolžan, Zvonka Rener-Primec
PURPOSE: The aim of this study was to investigate if common functional antioxidant polymorphisms are associated with epilepsy after neonatal hypoxic-ischemic encephalopathy (HIE). The antioxidant enzymes manganese superoxide dismutase (SOD2), glutathione peroxidase 1 (GPX1) and catalase (CAT) represent the primary defence mechanism against reactive oxygen species (ROS). Evidence suggests that genetic variants in antioxidant enzymes could influence susceptibility to epilepsy, but to date the relationship between them remains unclear...
February 3, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28222113/differentially-expressed-proteins-underlying-childhood-cortical-dysplasia-with-epilepsy-identified-by-itraq-proteomic-profiling
#7
Lu Qin, Xi Liu, Shiyong Liu, Yi Liu, Yixuan Yang, Hui Yang, Yangmei Chen, Lifen Chen
Cortical dysplasia accounts for at least 14% of epilepsy cases, and is mostly seen in children. However, the understanding of molecular mechanisms and pathogenesis underlying cortical dysplasia is limited. The aim of this cross-sectional study is to identify potential key molecules in the mechanisms of cortical dysplasia by screening the proteins expressed in brain tissues of childhood cortical dysplasia patients with epilepsy using isobaric tags for relative and absolute quantitation-based tandem mass spectrometry compared to controls, and several differentially expressed proteins that are not reported to be associated with cortical dysplasia previously were selected for validation using real-time polymerase chain reaction, immunoblotting and immunohistochemistry...
2017: PloS One
https://www.readbyqxmd.com/read/28221394/sv%C3%A3-r-reaktion-av-antiepileptikum-hos-kvinna-med-ursprung-fr%C3%A3-n-asien-karbamazepininducerat-stevens%C3%A2-johnsons-syndrom-toxisk-epidermal-nekrolys-vanligare-hos-personer-med-viss-asiatisk-h%C3%A3-rkomst
#8
Stavroula Anastasopoulou, Magdalena Komuda, Benjamin Presman, Maria Karlsson, Torbjörn Tomson
Stevens-Johnson syndrome/toxic epidermal necrolysis after initiation of carbamazepine in a HLA-B*15:02 gene carrier - screening in risk patients is recommended A 32-year-old woman, adopted from Indonesia, developed Stevens-Johnsons syndrome (SJS)/toxic epidermal necrolysis (TEN) after initiating carbamazepine treatment for epilepsy. SJS and TEN are rare but life-threatening adverse effects of carbamazepine, with a 72-100% risk of occurrence in patients carrying the HLA-B*15:02 allele. The HLA-B*15:02 allele is common in several Asian groups but less prevalent in European populations...
February 21, 2017: Läkartidningen
https://www.readbyqxmd.com/read/28220891/nmda-receptor-expression-in-the-thalamus-of-the-stargazer-model-of-absence-epilepsy
#9
Z Barad, D R Grattan, B Leitch
In the stargazer mouse model of absence epilepsy, altered corticothalamic excitation of reticular thalamic nucleus (RTN) neurons has been suggested to contribute to abnormal synchronicity in the corticothalamic-thalamocortical circuit, leading to spike-wave discharges, the hallmark of absence seizures. AMPA receptor expression and function are decreased in stargazer RTN, due to a mutation of AMPAR auxiliary subunit stargazin. It is unresolved and debated, however, if decreased excitation of RTN is compatible with epileptogenesis...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220524/language-fmri-and-direct-cortical-stimulation-in-epilepsy-preoperative-planning
#10
Alison Austermuehle, John Cocjin, Reynolds Richard, Shubhi Agrawal, Leigh Sepeta, William D Gaillard, Kareem Zaghloul, Sara Inati, William H Theodore
OBJECTIVE: Presurgical language assessment can help minimize damage to eloquent cortex during resective epilepsy surgery. Two methods for presurgical language mapping are functional MRI (fMRI) and direct cortical stimulation (DCS) of implanted subdural electrodes. We compared fMRI results to DCS to help optimize non-invasive language localization and assess its validity. METHODS: We studied 19 patients referred for presurgical evaluation of drug-resistant epilepsy...
February 21, 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28220480/quality-and-stability-of-extemporaneous-pyridoxal-phosphate-preparations-used-in-the-treatment-of-paediatric-epilepsy
#11
Abeer H A Mohamed-Ahmed, Matthew P Wilson, Maedelyn Albuera, Ting Chen, Philippa B Mills, Emma J Footitt, Peter T Clayton, Catherine Tuleu
OBJECTIVES: To assess the pyridoxal 5'-phosphate (PLP) content and stability of extemporaneous PLP liquids prepared from dietary supplements used for the treatment of vitamin B6 -dependent epilepsy. METHODS: Pyridoxal 5'-phosphate liquids were prepared in accordance with the guidelines given to patients from marketed 50 mg PLP dietary capsules and tablets. The PLP content and its stability were evaluated under conditions resembling the clinical setting using reverse phase HPLC and mass spectrometry...
February 21, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28220103/hippocampal-damage-and-atrophy-secondary-to-status-epilepticus-in-a-patient-with-schizophrenia
#12
Elaine Keiko Fujisao, Nathalia Raquel Cristaldo, Aline Marques da Silva Braga, Paulina Rodrigues Cunha, Seizo Yamashita, Luiz Eduardo Betting
A 59-year-old man was admitted with respiratory tract infection, compromised conscience and generalized tonic-clonic seizures. His medical history included schizophrenia diagnosis, for which he had been being treated since he was 27 years old. EEG disclosed non-convulsive status epilepticus. A magnetic resonance image (MRI) acquired 3 days later showed increased left hippocampal volume with hyperintensity on T2-weighted and FLAIR sequences. After being treated with antibiotics and antiepileptic medications, the patient's condition improved...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28219682/epilepsy-and-synaptic-proteins
#13
REVIEW
Yuko Fukata, Masaki Fukata
Throughout history, epilepsy affects about 1-2% of the population worldwide. Epilepsy can be caused by traumatic brain injury, exposure to certain toxins and drugs, and mutations of genes that often encode synaptic proteins. In addition to conventional linkage and association studies, the recent trio exome sequencing in epilepsy and proteomic analysis in autoimmune synaptopathies have accelerated identification of novel epilepsy-related proteins, most of which play critical roles in synaptic transmission. Furthermore, super-resolution microscopy analysis has revealed subsynaptic nanoscale distribution of presynaptic and postsynaptic proteins and suggests a precise trans-synaptic alignment of neurotransmitter release to receptors...
February 17, 2017: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/28219054/frequency-and-factors-associated-with-emergency-department-attendance-for-people-with-epilepsy-in-a-rural-uk-population
#14
Jon Allard, Rohit Shankar, William Henley, Andrew Brown, Brendan McLean, Mark Jadav, Mary Parrett, Richard Laugharne, Adam J Noble, Leone Ridsdale
Attendance at UK Emergency Departments (EDs) for people with epilepsy (PWE) following a seizure can be unnecessary and costly. The characteristics of PWE attending a UK rural district ED in a 12-month period were examined to foster better understanding of relevant psycho-social factors associated with ED use by conducting cross-sectional interviews using standardized questionnaires. Of the total participants (n=46), approximately one-third of the study cohort attended ED on three or more occasions in the 12-month study period and accounted for 65% of total ED attendances reported...
February 17, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28219044/understanding-the-self-management-skills-of-persons-with-epilepsy
#15
Ramon Edmundo D Bautista
PURPOSE: To determine whether the self-management skills of persons with epilepsy (PWE) vary across the different domains of the Epilepsy Self-Management Scale (ESMS). METHODS: 172 PWE completed a survey questionnaire as well as the ESMS. RESULTS: Using ANOVA with pairwise comparison, the mean item scores of the medication, seizure, and safety management subscales of the ESMS were significantly higher than the lifestyle and information management subscales (p<0...
February 17, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28219043/epilepsy-by-the-numbers-epilepsy-deaths-by-age-race-ethnicity-and-gender-in-the-united-states-significantly-increased-from-2005-to-2014
#16
Sujay F Greenlund, Janet B Croft, Rosemarie Kobau
To inform public health efforts to prevent epilepsy-related deaths, we used the Centers for Disease Control and Prevention Wide-ranging Online Data for Epidemiologic Research (WONDER; Wonder.cdc.gov) to examine any-listed epilepsy deaths for the period 2005-2014 by age groups (≤24, 25-44, 45-64, 65-84, ≥85years), sex, and race/ethnicity (non-Hispanic White, non-Hispanic African American, Hispanic, Asian/Pacific Islander, or American Indian/Alaska Native). Epilepsy deaths were defined by the International Classification of Diseases, Tenth Revision (ICD-10) codes G40...
February 17, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28219042/educational-video-and-story-as-effective-interventions-reducing-epilepsy-related-stigma-among-children
#17
Dana Brabcová, Jiří Kohout, Veronika Weberová, Vladimír Komárek
Stigma has been related to epilepsy since ancient times. Despite the importance of this issue, only a few interventions focusing on the reduction of epilepsy-related stigma may be found in the literature. Thus, the aim of this study is to evaluate the effectiveness of two interventions focused on the reduction of epilepsy-related stigma in children aged 9-11years. The first group of children involved in the study (n1=89) completed the 23-item Czech version of the SSE (Stigma Scale of Epilepsy) questionnaire and an 11-item multiple-choice knowledge test, then watched a video and completed the same questionnaire and test immediately after the intervention...
February 17, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28218498/optimization-of-bicyclic-lactam-derivatives-as-nmda-receptor-antagonists
#18
Margarida Espadinha, Jorge Dourado, Rocio Lajarin-Cuesta, Clara Herrera-Arozamena, Lidia Gonçalves, Maria Isabel Rodríguez-Franco, Cristobal de Los Rios, Maria M M Santos
N-Methyl-D-aspartate (NMDA) receptors are fundamental for the normal function of the central nerve system, and play an important role in memory and learning. An overactivation of these receptors will lead to neuronal loss associated with major neurological disorders, such as Parkinson's disease, Alzheimer's disease, schizophrenia, and epilepsy. Herein, twenty two novel enantiopure bicyclic lactams were designed, synthesized, and evaluated as NMDA receptor antagonists. Most of the new compounds displayed NMDA receptor antagonism and, the most promising compound showed IC50 value in the same order of magnitude of memantine, a NMDA receptor antagonist used in the clinic for the treatment of Alzheimer's disease...
February 20, 2017: ChemMedChem
https://www.readbyqxmd.com/read/28218389/confirming-the-recessive-inheritance-of-scn1b-mutations-in-developmental-epileptic-encephalopathy
#19
Wafaa Ramadan, Nisha Patel, Shamsa Anazi, Amal Y Kentab, Fahad A Bashiri, Muddathir H Hamad, Lamya Jad, Mustafa A Salih, Hessa Alsaif, Mais Hashem, Eissa Faqeih, Hanan E Shamseddin, Fowzan S Alkuraya
Dominant SCN1B mutations are known to cause several epilepsy syndromes in humans. Only two epilepsy patients to date have been reported to have recessive mutations in SCN1B as the likely cause of their phenotype. Here, we confirm the recessive inheritance of two novel SCN1B mutations in five children from three families with developmental epileptic encephalopathy. The recessive inheritance and early death in these patients is consistent with the Dravet-like phenotype observed in Scn1b(-/-) mice. The "negative" clinical exome in one of these families highlight the need to consider recessive mutations in the interpretation of variants in typically dominant genes...
February 20, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28218241/massively-augmented-hippocampal-dentate-granule-cell-activation-accompanies-epilepsy-development
#20
Christopher G Dengler, Cuiyong Yue, Hajime Takano, Douglas A Coulter
In a mouse model of temporal lobe epilepsy, multicellular calcium imaging revealed that disease emergence was accompanied by massive amplification in the normally sparse, afferent stimulation-induced activation of hippocampal dentate granule cells. Patch recordings demonstrated reductions in local inhibitory function within the dentate gyrus at time points where sparse activation was compromised. Mimicking changes in inhibitory synaptic function and transmembrane chloride regulation was sufficient to elicit the dentate gyrus circuit collapse evident during epilepsy development...
February 20, 2017: Scientific Reports
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