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https://www.readbyqxmd.com/read/28927207/surgical-approaches-to-the-temporal-horn-an-anatomic-analysis-of-white-matter-tract-interruption
#1
Paulo A S Kadri, Jean G de Oliveira, Niklaus Krayenbühl, Ugur Türe, Evandro P L de Oliveira, Ossama Al-Mefty, Guilherme C Ribas
BACKGROUND: Surgical access to the temporal horn is necessary to treat tumors and vascular lesions, but is used mainly in patients with mediobasal temporal epilepsy. The surgical approaches to this cavity fall into 3 primary categories: lateral, inferior, and transsylvian. The current neurosurgical literature has underestimated the interruption of involved fiber bundles and the correlated clinical manifestations. OBJECTIVE: To delineate the interruption of fiber bundles during the different approaches to the temporal horn...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28926853/daily-scheduled-opioids-as-monotherapy-for-prevention-of-migraine-triggered-epilepsy
#2
Iraj Derakhshan
No abstract text is available yet for this article.
September 19, 2017: Drug Research
https://www.readbyqxmd.com/read/28926841/beneficial-combination-of-lacosamide-with-retigabine-in-experimental-animals-an-isobolographic-analysis
#3
Jarogniew J Luszczki, Mirosław Zagaja, Barbara Miziak, Maria W Kondrat-Wrobel, Katarzyna Zaluska, Paula Wroblewska-Luczka, Piotr Adamczuk, Stanislaw J Czuczwar, Magdalena Florek-Luszczki
BACKGROUND/AIM: To isobolographically determine the types of interactions that occur between retigabine and lacosamide (LCM; two third-generation antiepileptic drugs) with respect to their anticonvulsant activity and acute adverse effects (sedation) in the maximal electroshock-induced seizures (MES) and chimney test (motor performance) in adult male Swiss mice. METHODS: Type I isobolographic analysis for nonparallel dose-response effects for the combination of retigabine with LCM (at the fixed-ratio of 1:1) in both the MES and chimney test in mice was performed...
September 20, 2017: Pharmacology
https://www.readbyqxmd.com/read/28926830/a-distinctive-ictal-amplitude-integrated-electroencephalography-pattern-in-newborns-with-neonatal-epilepsy-associated-with-kcnq2-mutations
#4
Ana Vilan, José Mendes Ribeiro, Pasquale Striano, Sarah Weckhuysen, Lauren C Weeke, Eva Brilstra, Linda S de Vries, Maria Roberta Cilio
BACKGROUND: Recurrent and prolonged seizures are harmful for the developing brain, emphasizing the importance of early seizure recognition and effective therapy. Amplitude-integrated electroencephalography (aEEG) has become a valuable tool to diagnose epileptic seizures, and, in parallel, genetic etiologies are increasingly being recognized, changing the paradigm of the workup and management of neonatal seizures. OBJECTIVE: To report the ictal aEEG pattern in neonates with KCNQ2-related epilepsy...
September 20, 2017: Neonatology
https://www.readbyqxmd.com/read/28926747/ictal-source-imaging-and-electroclinical-correlation-in-self-limited-epilepsy-with-centrotemporal-spikes
#5
Jørgen Alving, Martin Fabricius, Ivana Rosenzweig, Sándor Beniczky
PURPOSE: To elucidate the localization of ictal EEG activity, and correlate it to semiological features in self-limited epilepsy with centrotemporal spikes (formerly called "benign epilepsy with centrotemporal spikes"). METHODS: We have performed ictal electric source imaging, and we analysed electroclinical correlations in three patients with self-limited epilepsy with centrotemporal spikes. RESULTS: The source of the evolving rhythmic ictal activity (9...
September 14, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28925561/nestin-expressing-cell-types-in-the-temporal-lobe-and-hippocampus-morphology-differentiation-and-proliferative-capacity
#6
Joan Liu, Cheryl Reeves, Thomas Jacques, Andrew McEvoy, Anna Miserocchi, Pamela Thompson, Sanjay Sisodiya, Maria Thom
Nestin is expressed in immature neuroepithelial and progenitor cell types and transiently upregulated in proliferative neuroglial cells responding to acute brain injury, including following seizures. In 36 temporal lobe (TLobe) specimens from patients with TLobe epilepsy (age range 8-60 years) we studied the number, distribution and morphology of nestin-expressing cells (NEC) in the pes, hippocampus body, parahippocampal gyrus, amygdala, temporal cortex and pole compared with post mortem control tissues from 26 cases (age range 12 gestational weeks to 76 years)...
September 19, 2017: Glia
https://www.readbyqxmd.com/read/28924745/hypertonia-linked-protein-trak1-functions-with-mitofusins-to-promote-mitochondrial-tethering-and-fusion
#7
Crystal A Lee, Lih-Shen Chin, Lian Li
Hypertonia is a neurological dysfunction associated with a number of central nervous system disorders, including cerebral palsy, Parkinson's disease, dystonia, and epilepsy. Genetic studies have identified a homozygous truncation mutation in Trak1 that causes hypertonia in mice. Moreover, elevated Trak1 protein expression is associated with several types of cancers and variants in Trak1 are linked to childhood absence epilepsy in humans. Despite the importance of Trak1 in health and disease, the mechanisms of Trak1 action remain unclear and the pathogenic effects of Trak1 mutation are unknown...
September 18, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28924292/hemimegalencephaly-with-intractable-epilepsy-a-case-report
#8
Prem Chand, Muhammad Faraz Raghib, Muhammad Sohail Salat, Fazal Manzoor Arain
Isolated Hemimegalencephaly (iHME) is a rare form of congenital malformation of cortical development.It is characterized by enlargement of all or part of one cerebral hemisphere. It typically presents with intractable seizures, mental retardation, developmental delay, contralateral hemiparesis and hemianopia. The patient was a five and half month's old baby girl who presented first with focal seizures at 10th day of life. No other physical or behavioral abnormality was noted. However, Initial EEG showed excessive sharp EEG transients more over the right hemisphere, repeated EEG showed spikes, polyspikes, sharps and slow wave discharges predominately over right hemisphere...
September 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28923948/cross-scale-effects-of-neural-interactions-during-human-neocortical-seizure-activity
#9
Tahra L Eissa, Koen Dijkstra, Christoph Brune, Ronald G Emerson, Michel J A M van Putten, Robert R Goodman, Guy M McKhann, Catherine A Schevon, Wim van Drongelen, Stephan A van Gils
Small-scale neuronal networks may impose widespread effects on large network dynamics. To unravel this relationship, we analyzed eight multiscale recordings of spontaneous seizures from four patients with epilepsy. During seizures, multiunit spike activity organizes into a submillimeter-sized wavefront, and this activity correlates significantly with low-frequency rhythms from electrocorticographic recordings across a 10-cm-sized neocortical network. Notably, this correlation effect is specific to the ictal wavefront and is absent interictally or from action potential activity outside the wavefront territory...
September 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28923596/chemically-activated-luminopsins-allow-optogenetic-inhibition-of-distributed-nodes-in-an-epileptic-network-for-non-invasive-and-multi-site-suppression-of-seizure-activity
#10
Jack K Tung, Fu Hung Shiu, Kevin Ding, Robert E Gross
Although optogenetic techniques have proven to be invaluable for manipulating and understanding complex neural dynamics over the past decade, they still face practical and translational challenges in targeting networks involving multiple, large, or difficult-to-illuminate areas of the brain. We utilized inhibitory luminopsins to simultaneously inhibit multiple limbic structures of the rat brain in a hardware-independent and cell-type specific manner to suppress seizure activity in a rat model of epilepsy. In addition to elucidating mechanisms of seizure suppression never directly demonstrated before, this work also illustrates how precise multi-focal control of pathological circuits can be advantageous for the treatment of epilepsy, which may also be applicable to the treatment and understanding of other neurological disorders involving broad neural circuits...
September 15, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/28923528/arterial-spin-labeling-hyperperfusion-in-rasmussen-s-encephalitis-is-it-due-to-focal-brain-inflammation-or-a-post-ictal-phenomenon
#11
Savith Kumar, Chinmay P Nagesh, Bejoy Thomas, Ashalatha Radhakrishnan, Ramshekhar N Menon, Chandrasekharan Kesavadas
BACKGROUND AND PURPOSE: The study evaluated the utility of Arterial spin labeling (ASL) perfusion imaging in Rasmussen's Encephalitis (RE). MATERIAL AND METHODS: The hospital electronic database was searched using the search words "encephalitis," "autoimmune encephalitis" and "Rasmussen's encephalitis" for the period of 1 Jan 2015 to 31 Jan 2017. Clinically diagnosed cases of RE for which epilepsy protocol magnetic resonance imaging (MRI) with perfusion imaging (ASL) performed on a 3T scanner were retrieved...
September 15, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/28923498/assessment-of-grammar-optimizes-language-tasks-for-the-intracarotid-amobarbital-procedure
#12
Monika Połczyńska, Taylor Kuhn, S Christine You, Patricia Walshaw, Susan Curtiss, Susan Bookheimer
PURPOSE: A previous study showed that assessment of language laterality could be improved by adding grammar tests to the recovery phase of the intracarotid amobarbital procedure (IAP) (Połczyńska et al. 2014). The aim of this study was to further investigate the extent to which grammar tests lateralize language function during the recovery phase of the IAP in a larger patient sample. METHODS: Forty patients with drug-resistant epilepsy (14 females, thirty-two right-handed, mean age 38...
September 9, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28923408/altered-functional-connectivity-in-mesial-temporal-lobe-epilepsy
#13
Hana Burianová, Nahla L Faizo, Marcus Gray, Julia Hocking, Graham Galloway, David Reutens
Growing evidence of altered functional connectivity suggests that mesial temporal lobe epilepsy (mTLE) alters not only hippocampal networks, but also a number of resting state networks. These highly coherent, yet functionally distinct brain circuits interact dynamically with each other in order to mediate consciousness, memory, and attention. However, little is currently known about the modulation of these networks by epileptiform activity, such as interictal spikes and seizures. The objective of the study was to use simultaneous EEG-fMRI to investigate functional connectivity in three resting state networks: default mode network (DMN), salience network (SN), and dorsal attentional network (DAN) in patients with mTLE compared to a healthy cohort, and in relation to the onset of interictal spikes and the period immediately prior to the spikes...
September 8, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28923090/mapping-occurrence-of-taenia-solium-taeniosis-cysticercosis-and-areas-at-risk-of-porcine-cysticercosis-in-central-america-and-the-caribbean-basin
#14
Uffe Christian Braae, Brecht Devleesschauwer, Fortune Sithole, Ziqi Wang, Arve Lee Willingham
BACKGROUND: This study aimed to map the occurrence of Taenia solium taeniosis/cysticercosis at national level within Central America and the Caribbean basin, and to map the distribution of porcine cysticercosis at first-level administrative subdivision level (department level) and the porcine population at risk. This zoonotic parasite is believed to be widely endemic across most of Latin America. However, there is little information readily available for Central America and the Caribbean basin...
September 18, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28923026/dementia-and-cognitive-disorder-identified-at-a-forensic-psychiatric-examination-a-study-from-sweden
#15
Anette Ekström, Marianne Kristiansson, Karin Sparring Björkstén
BACKGROUND: Few studies have addressed the relationship between dementia and crime. We conducted a study of persons who got a primary or secondary diagnosis of dementia or cognitive disorder in a forensic psychiatric examination. METHODS: In Sweden, annually about 500 forensic psychiatric examinations are carried out. All cases from 2008 to 2010 with the diagnoses dementia or cognitive disorder were selected from the database of the Swedish National Board of Forensic Medicine...
September 18, 2017: BMC Geriatrics
https://www.readbyqxmd.com/read/28923014/scn8a-mutations-in-chinese-patients-with-early-onset-epileptic-encephalopathy-and-benign-infantile-seizures
#16
Jiaping Wang, Hua Gao, Xinhua Bao, Qingping Zhang, Jiarui Li, Liping Wei, Xiru Wu, Yan Chen, Shujie Yu
BACKGROUND: SCN8A mutations have recently been associated with epilepsy and neurodevelopmental disorders. This study aimed to broaden the phenotypic-spectrum of disease related with SCN8A mutations. METHODS: To identify the pathogenic gene of a Chinese family, in which six members suffered from epilepsy, whole-exome sequencing was performed. In addition, target next-generation sequencing (NGS) was performed on 178 sporadic patients, who had epilepsy of unknown etiology within 6 months after birth...
September 18, 2017: BMC Medical Genetics
https://www.readbyqxmd.com/read/28922876/visual-deficit-from-laser-interstitial-thermal-therapy-for-temporal-lobe-epilepsy-anatomical-considerations
#17
Walter J Jermakowicz, Michael E Ivan, Iahn Cajigas, Ramses Ribot, Ignacio Jusue-Torres, Mehul B Desai, Armando Ruiz, Pierre-Francois D'Haese, Andres M Kanner, Jonathan R Jagid
BACKGROUND: Laser interstitial thermal therapy (LITT) is quickly emerging as an effective surgical therapy for temporal lobe epilepsy (TLE). One of the most frequent complications of the procedure is postoperative visual field cuts, but the physiopathology of these deficits is unknown. OBJECTIVE: To evaluate potential causes of visual deficits after LITT for TLE in an attempt to minimize this complication. METHODS: This retrospective chart review compares the case of a 24-year-old male who developed homonymous hemianopsia following LITT for TLE to 17 prior patients who underwent the procedure and suffered no visual deficit...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28922856/building-up-absence-seizures-in-the-somatosensory-cortex-from-network-to-cellular-epileptogenic-processes
#18
Guillaume Jarre, Tristan Altwegg-Boussac, Mark S Williams, Florian Studer, Mathilde Chipaux, Olivier David, Stéphane Charpier, Antoine Depaulis, Séverine Mahon, Isabelle Guillemain
The epileptogenic processes leading to recurrent seizures in Genetic Epilepsies are largely unknown. Using the Genetic Absence Epilepsy Rat from Strasbourg, we investigated in vivo the network and single neuron mechanisms responsible for the early emergence of epileptic activity. Local field potential recordings in the primary somatosensory cortex (SoCx), from the second post-natal week to adulthood, showed that immature cortical discharges progressively evolved into typical spike-and-wave discharges following a 3-step maturation process...
September 1, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28922833/the-knockout-of-synapsin-ii-in-mice-impairs-social-behavior-and-functional-connectivity-generating-an-asd-like-phenotype
#19
Caterina Michetti, Angela Caruso, Marco Pagani, Mara Sabbioni, Lucian Medrihan, Gergely David, Alberto Galbusera, Monica Morini, Alessandro Gozzi, Fabio Benfenati, Maria Luisa Scattoni
Autism spectrum disorders (ASD) and epilepsy are neurodevelopmental conditions that appear with high rate of co-occurrence, suggesting the possibility of a common genetic basis. Mutations in Synapsin (SYN) genes, particularly SYN1 and SYN2, have been recently associated with ASD and epilepsy in humans. Accordingly, mice lacking Syn1 or Syn2, but not Syn3, experience epileptic seizures and display autistic-like traits that precede the onset of seizures. Here, we analyzed social behavior and ultrasonic vocalizations emitted in 2 social contexts by SynI, SynII, or SynIII mutants and show that SynII mutants display the most severe ASD-like phenotype...
October 1, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28922360/comparison-of-background-eeg-activity-of-different-groups-of-patients-with-idiopathic-epilepsy-using-shannon-spectral-entropy-and-cluster-based-permutation-statistical-testing
#20
Jose Antonio Urigüen, Begoña García-Zapirain, Julio Artieda, Jorge Iriarte, Miguel Valencia
Idiopathic epilepsy is characterized by generalized seizures with no apparent cause. One of its main problems is the lack of biomarkers to monitor the evolution of patients. The only tools they can use are limited to inspecting the amount of seizures during previous periods of time and assessing the existence of interictal discharges. As a result, there is a need for improving the tools to assist the diagnosis and follow up of these patients. The goal of the present study is to compare and find a way to differentiate between two groups of patients suffering from idiopathic epilepsy, one group that could be followed-up by means of specific electroencephalographic (EEG) signatures (intercritical activity present), and another one that could not due to the absence of these markers...
2017: PloS One
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