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https://www.readbyqxmd.com/read/29221145/subependymal-giant-cell-astrocytomas-in-tuberous-sclerosis-complex-have-consistent-tsc1-tsc2-biallelic-inactivation-and-no-braf-mutations
#1
Anika Bongaarts, Krinio Giannikou, Roy J Reinten, Jasper J Anink, James D Mills, Floor E Jansen, G M Wim Spliet, Willfred F A den Dunnen, Roland Coras, Ingmar Blümcke, Werner Paulus, Theresa Scholl, Martha Feucht, Katarzyna Kotulska, Sergiusz Jozwiak, Anna Maria Buccoliero, Chiara Caporalini, Flavio Giordano, Lorenzo Genitori, Figen Söylemezoğlu, José Pimentel, Mark Nellist, Antoinette Y N Schouten-van Meeteren, Anwesha Nag, Angelika Mühlebner, David J Kwiatkowski, Eleonora Aronica
Subependymal giant cell astrocytomas (SEGAs) are rare, low-grade glioneuronal brain tumors that occur almost exclusively in patients with tuberous sclerosis complex (TSC). Though histologically benign, SEGAs can lead to serious neurological complications, including hydrocephalus, intractable seizures and death. Previous studies in a limited number of SEGAs have provided evidence for a biallelic two-hit inactivation of either TSC1 or TSC2, resulting in constitutive activation of the mechanistic target of rapamycin complex 1 pathway...
November 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29217981/mutating-our-understanding-of-brain-tumors-and-seizures-entrez-idh
#2
COMMENT
Jong Woo Lee
No abstract text is available yet for this article.
November 2017: Epilepsy Currents
https://www.readbyqxmd.com/read/29205319/atypical-presentations-of-dysembryoplastic-neuroepithelial-tumors
#3
Jessica Stark, Elliott Friedman, Stephen Thompson, Gretchen Von Allmen, Meenakshi Bhattacharjee, Nitin Tandon
Dysembryoplastic neuroepithelial tumors (DNETs) are World Health Organization grade 1 neoplasms, typically present as isolated cortical lesions with no associated edema. We present 3 rare cases of DNETs that were atypical in location (all were subcortical and 1 was bilateral), 2 of which displayed substantial growth over time. All 3 cases presented with seizures that were not well controlled on medications, followed by a successful cure of the epilepsy when these lesions were removed. These cases uniquely illustrate that DNETs can be present throughout the brain and may generate seizures even in a subcortical location, possibly due to containing neurons with the potential for aberrant microcircuitry...
December 3, 2017: Epilepsia
https://www.readbyqxmd.com/read/29198174/intracranial-complications-of-midline-nasal-dermoid-cysts
#4
Dries Opsomer, Toon Allaeys, Ann-Sofie Alderweireldt, Edward Baert, Nathalie Roche
BACKGROUND: Nasal dermoid cysts are common tumors in children. Due to anomalies in embryologic development of the nasal complex, sometimes an intracranial extension exists. When these cysts become infected they can lead to meningitis, brain abscess and death. METHODS: We report the case of a 1.5-year-old girl admitted to the paediatric intensive care unit after infection of a nasal dermoid cyst. RESULTS: The infant had a spiking fever and epileptic seizures...
December 4, 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/29196670/mutational-analysis-of-tsc1-and-tsc2-genes-in-tuberous-sclerosis-complex-patients-from-greece
#5
Socratis Avgeris, Florentia Fostira, Andromachi Vagena, Yiannis Ninios, Angeliki Delimitsou, Radek Vodicka, Radek Vrtel, Sotirios Youroukos, Dimitrios J Stravopodis, Metaxia Vlassi, Aristotelis Astrinidis, Drakoulis Yannoukakos, Gerassimos E Voutsinas
Tuberous sclerosis complex (TSC) is a rare autosomal dominant disorder causing benign tumors in the brain and other vital organs. The genes implicated in disease development are TSC1 and TSC2. Here, we have performed mutational analysis followed by a genotype-phenotype correlation study based on the clinical characteristics of the affected individuals. Twenty unrelated probands or families from Greece have been analyzed, of whom 13 had definite TSC, whereas another 7 had a possible TSC diagnosis. Using direct sequencing, we have identified pathogenic mutations in 13 patients/families (6 in TSC1 and 7 in TSC2), 5 of which were novel...
December 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29192634/the-pattern-of-significant-lesions-found-in-computerized-tomography-scan-of-recurrent-seizure-patients-at-a-center-in-enugu-nigeria
#6
A B Ezeala-Adikaibe, S C Ohaegbulam, C A Ndubuisi
INTRODUCTION: Seizures are common reasons for neurologic consultations and investigations. In the absence of magnetic resonance imaging, computerized tomography scanning of the brain is a reliable and cheaper alternative. Little is known about the pattern of brain lesions in patients with recurrent seizures in Nigeria. OBJECTIVES: To determine the pattern of significant intracerebral lesions in patients presenting with recurrent seizures in a tertiary hospital in Enugu...
October 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/29190292/tnf-%C3%AE-blockade-suppresses-pericystic-inflammation-following-anthelmintic-treatment-in-porcine-neurocysticercosis
#7
Siddhartha Mahanty, Miguel A Orrego, Carla Cangalaya, M Paz Adrianzen, Gianfranco Arroyo, Juan Calcina, Armando E Gonzalez, Héctor H García, Cristina Guerra-Giraldez, Theodore E Nash
BACKGROUND: Neurocysticercosis (NCC) is an infection of the brain with the larval cyst of the tapeworm, Taenia solium. Cysticidal treatment induces parasite killing resulting in a post inflammatory response and seizures, which generally requires corticosteroid treatment to control inflammation. The nature of this response and how to best control it is unclear. We investigated the anti-inflammatory effects of pretreatment with etanercept (ETN), an anti-tumor necrosis factor agent, or dexamethasone (DEX), a high potency corticosteroid, on the post treatment inflammatory response in naturally infected pigs with neurocysticercosis after a single dose of the cysticidal drug praziquantel (PZQ)...
November 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29186698/effect-of-atorvastatin-on-behavioral-alterations-and-neuroinflammation-during-epileptogenesis
#8
Clarissa Vasconcelos de Oliveira, Jéssica Grigoletto, Julia Marion Canzian, Marta Maria Medeiros Frescura Duarte, Thiago Duarte, Ana Flávia Furian, Mauro Schneider Oliveira
Temporal lobe epilepsy (TLE) is the most frequent and medically refractory type of epilepsy in humans. In addition to seizures, patients with TLE suffer from behavioral alterations and cognitive deficits. Poststatus epilepticus model of TLE induced by pilocarpine in rodents has enhanced the understanding of the processes leading to epilepsy and thus, of potential targets for antiepileptogenic therapies. Clinical and experimental evidence suggests that inflammatory processes in the brain may critically contribute to epileptogenesis...
November 26, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29175723/brain-tumors-associated-with-psychogenic-non-epileptic-seizures-case-series
#9
Catherine R Garcia, Gulam Q Khan, Amy M Morrow, Priyanka Yadav, Donita D Lightner, Frank G Gilliam, John L Villano
OBJECTIVE: The association of psychogenic non-epileptic seizures (PNES) with primary or secondary brain tumors has not been well described in the literature. We aim to discuss their association, and their impact in brain tumor treatment. PATIENTS AND METHODS: We identified four patients retrospectively from our practice. The diagnosis of PNES was based on clinical suspicion and standard EEG, supplemented with video-EEG recording in 2 patients. RESULTS: The initial diagnosis of brain tumor was associated with a new onset seizure prior to diagnosis...
November 22, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29161898/delta-brush-pattern-is-not-unique-to-nmdar-encephalitis-evaluation-of-two-independent-long-term-eeg-cohorts
#10
Betul Baykan, Ozlem Gungor Tuncer, Ebru Nur Vanli-Yavuz, Leyla Baysal Kirac, Gokcen Gundogdu, Nerses Bebek, Candan Gurses, Ebru Altindag, Erdem Tuzun
PURPOSE: Although its specificity has not previously been investigated in other cohorts, delta brush pattern (DBP) is increasingly reported in the EEGs of patients with anti- N-methyl-d-aspartate receptor (NMDAR) encephalitis. METHODS: We aimed to investigate the DBP in the EEGs of 2 cohorts; patients with change in consciousness for various causes monitored in the intensive care unit (ICU) (n = 106) and patients with mesial temporal lobe epilepsy (MTLE) with or without antineuronal antibodies (n = 76)...
February 1, 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/29139152/giant-intracranial-arteriovenous-malformation-as-the-focus-of-epileptic-seizures
#11
Mio Takayama, Kenji Hara, Aya Matsusue, Brian Waters, Natsuki Ikematsu, Masayuki Kashiwagi, Shin-Ichi Kubo
A man in his late thirties was found in a supine position in the hallway of his house. He had been diagnosed with epilepsy at approximately 20 years old. Since stopping treatment, epileptic events occurred more frequently and his condition deteriorated in the past 2 years. Autopsy revealed that head injuries were found on the left side of his head. A fracture from the left parietal bone to the anterior cranial fossa was also detected. A subdural hemorrhage (hematoma) spanned a wide range. A subarachnoid hemorrhage was also identified in the left parietal region...
November 14, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/29115706/seizure-susceptible-brain-regions-in-glioblastoma-identification-of-patients-at-risk
#12
Nuria Cayuela, Marta Simó, Carles Majós, X Rifà-Ros, Jaime Gállego Pérez-Larraya, Pablo Ripollés, Noemí Vidal, Julia Miró, Francisco Gil, Miguel Gil-Gil, Gerard Plans, Francesc Graus, Jordi Bruna
BACKGROUND: The main aim of this study was to identify which glioblastoma multiforme (GBM) patients have a higher risk to present seizures during follow-up. METHODS: Patients with newly diagnosed GBM were reviewed (n=306), and classified in patients with (Group 1) and without (Group 2) seizures at onset. Group 2 was split into patients with seizures during follow-up (Group 2A) and patients who never had seizures (Group 2B). Anatomical location of GBM was identified and compared by voxel-based lesion symptom mapping (discovery set)...
November 8, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29114607/the-impact-of-different-stereotactic-radiation-therapy-regimens-for-brain-metastases-on-local-control-and-toxicity
#13
Rachel B Jimenez, Brian M Alexander, Anand Mahadevan, Andrzej Niemierko, Selvan Rajakesari, Nils D Arvold, Scott R Floyd, Kevin S Oh, Jay S Loeffler, Helen A Shih
Purpose: Stereotactic radiation therapy (SRT) enables focused, short course, high dose per fraction radiation delivery to brain tumors that are less ideal for single fraction treatment because of size, shape, or close proximity to sensitive structures. We sought to identify optimal SRT treatment regimens for maximizing local control while minimizing morbidity. Methods and materials: We performed a retrospective review of patients treated with SRT for solid brain metastases using variable dose schedules between 2001 and 2011 at 3 academic hospitals...
July 2017: Advances in Radiation Oncology
https://www.readbyqxmd.com/read/29112665/long-term-risk-of-a-seizure-disorder-after-eclampsia
#14
Kara A Nerenberg, Alison L Park, Simone N Vigod, Gustavo Saposnik, Howard Berger, Michelle A Hladunewich, Shital Gandhi, Candice K Silversides, Joel G Ray
OBJECTIVE: To evaluate the incidence rate and relative risk of a seizure disorder after eclampsia. METHODS: We evaluated 1,565,733 births in a retrospective data linkage cohort study in Ontario, Canada, from April 1, 2002, to March 31, 2014. We included females aged 15-50 years and excluded patients with epilepsy, conditions predisposing to seizure, and those who died within 30 days of the delivery discharge date. The exposure was defined as a hypertensive disorder of pregnancy, namely 1) eclampsia, 2) preeclampsia, or 3) gestational hypertension...
November 3, 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29111096/multinodular-and-vacuolating-neuronal-tumor-of-the-cerebrum-a-rare-entity-new-case-and-review-of-the-literature
#15
Lain Hermes Gonzalez-Quarante, Fernando Ruiz-Juretschke, Emma Sola Vendrell, Oscar Lucas Gil de Sagredo Del Corral, Vijay Agarwal, Roberto Garcia-Leal
BACKGROUND: Multinodular and vacuolating neuronal tumor has been recently described and included in the World Health Organization Classification of Tumors of The Central Nervous System, even though its consideration as a true tumor is controversial. Patients with these lesions usually present with refractory seizures and inconclusive imaging findings that may be confused with other more common diagnoses such as dysembryoplastic neuroepithelial tumors or low-grade gliomas. Therefore, surgical resection is warranted to reach a pathologic diagnosis and seizure control...
October 28, 2017: Neurocirugía
https://www.readbyqxmd.com/read/29096138/failed-epilepsy-surgery-deserves-a-second-chance
#16
Chrystal M Reed, Sandra Dewar, Itzhak Fried, Jerome Engel, Dawn Eliashiv
OBJECTIVES: Resective epilepsy surgery has been shown to have up to 70-80% success rates in patients with intractable seizure disorder. Around 20-30% of patients with Engel Classification III and IV will require reevaluation for further surgery. Common reasons for first surgery failures include incomplete resection of seizure focus, incorrect identification of seizure focus and recurrence of tumor. PATIENT AND METHODS: Clinical chart review of seventeen patients from a single adult comprehensive epilepsy program who underwent reoperation from 2007 to 2014 was performed...
October 23, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29088958/a-systematic-review-of-perioperative-seizure-prophylaxis-during-brain-tumor-resection-the-case-for-a-multicenter-randomized-clinical-trial
#17
Vyshak Chandra, Andrew K Rock, Charles Opalak, Joel M Stary, Adam P Sima, Matthew Carr, Rafael A Vega, William C Broaddus
OBJECTIVE The majority of neurosurgeons administer antiepileptic drugs (AEDs) prophylactically for supratentorial tumor resection without clear evidence to support this practice. The putative benefit of perioperative seizure prophylaxis must be weighed against the risks of adverse effects and drug interactions in patients without a history of seizures. Consequently, the authors conducted a systematic review of prospective randomized controlled trials (RCTs) that have evaluated the efficacy of perioperative seizure prophylaxis among patients without a history of seizures...
November 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/29083341/a-case-of-refractary-epilepsy-and-related-pain-due-to-dysmenorrhea-solved-with-loading-dose-of-lacosamide-clinical-and-neurophysiological-correlates
#18
Nicolino Marchitto, Umberto Ceratti, Serenella Dalmaso, Gianfranco Raimondi
 In most cases, the etiology of epilepsy is unknown, although some individuals may develop epilepsy as a result of certain brain injuries, following a stroke, a brain tumor or because of drugs and alcohol. Even some rare genetic mutations may be related to the onset of the condition. Seizures are the result of excessive and abnormal activity of neurons in the cerebral cortex. In this case report we show a clinical case of refractory epilepsy due to pain related to uncontrolled dysmenorrhea. The patient, 43 yrs old, had a history of epilepsy of 20 years and ovarian cancer...
October 23, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/29080744/effect-of-dexmedetomidine-on-rats-with-convulsive-status-epilepticus-and-association-with-activation-of-cholinergic-anti-inflammatory-pathway
#19
Kai-Liang Xu, Xin-Qiu Liu, Yu-Long Yao, Ming-Rong Ye, Yao-Guo Han, Tao Zhang, Gang Chen, Ming Lei
Convulsive status epilepticus (CSE) is a neurological disease with contraction and extension of limbs, leading to damage of hippocampus and cognition. This study aimed to explore the effects of dexmedetomidine (DEX) on the cognitive function and neuroinflammation in CSE rats. All rats were divided into control group, CSE group and DEX group. Morris water maze test was used to measure cognitive function. Acute hippocampal slices were made to detect long-term potentiation (LTP). Immunohistochemistry was used to determine the expression of α7-nicotinic acetylcholine receptor (α7-nAChR) and interleukin-1β (IL-1β)...
November 11, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29076473/-the-management-of-patients-with-new-epileptic-seizures-in-the-early-period-after-resection-of-hemispheric-tumors-two-case-reports-and-a-literature-review
#20
E Yu Sokolova, I A Savin, A B Kadasheva, A V Gavryushin, D I Pitskhelauri, A V Kozlov, K N Lapteva, V V Podlepich
Epileptic seizures developing for the first time after a neurosurgical intervention (de novo seizures) are a challenge for choosing an optimal treatment. The pathogenesis of these seizures is often associated with factors that become inactive in the early postoperative period. These seizures can not serve the basis for diagnosing symptomatic epilepsy and should be regarded as a brain response to surgery, and patients do not need anticonvulsant therapy that reduces the quality of life. But in some situations, new early postoperative seizures serve the onset of symptomatic epilepsy and require prolonged anticonvulsant therapy...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
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