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Brain tumor related epilepsy

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https://www.readbyqxmd.com/read/27889578/molecular-neurobiology-of-mtor
#1
REVIEW
Katarzyna Switon, Katarzyna Kotulska, Aleksandra Janusz-Kaminska, Justyna Zmorzynska, Jacek Jaworski
Mammalian/mechanistic target of rapamycin (mTOR) is a serine-threonine kinase that controls several important aspects of mammalian cell function. mTOR activity is modulated by various intra- and extracellular factors; in turn, mTOR changes rates of translation, transcription, protein degradation, cell signaling, metabolism, and cytoskeleton dynamics. mTOR has been repeatedly shown to participate in neuronal development and the proper functioning of mature neurons. Changes in mTOR activity are often observed in nervous system diseases, including genetic diseases (e...
November 23, 2016: Neuroscience
https://www.readbyqxmd.com/read/27863278/neoplasm-study-real-life-use-of-lacosamide-in-patients-with-brain-tumor-related-epilepsy
#2
Vicente Villanueva, Rosana Saiz-Diaz, Manuel Toledo, Ana Piera, Jose Angel Mauri, Juan Jesús Rodriguez-Uranga, Francisco Javier López-González, Asier Gómez-Ibáñez, Mercedes Garcés, Jesús González de la Aleja, Xiana Rodríguez-Osorio, Susana Palao-Duarte, Ascensión Castillo, Macarena Bonet, Jesús Ruiz-Giménez, Juan Palau, Alberto Arcediano, Maria Toledo, Ana Gago
BACKGROUND: The choice of antiepileptic drug (AED) therapy in patients with brain tumor-related epilepsy (BTRE) is complicated, and there are a lack of robust clinical trial data to date. METHODS: The NEOPLASM (Neuroncologic Patients treated with LAcoSaMide) study was a 6-month, multicenter, retrospective, observational study in patients with BTRE treated with lacosamide. Patients were started on lacosamide because of a lack of efficacy or adverse events (AEs) with prior AEDs or suitability versus other AEDs, according to clinical practice...
November 15, 2016: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/27854111/the-risk-of-hypotension-and-seizures-in-patients-receiving-prophylactic-anti-epileptic-drugs-for-supratentorial-craniotomy
#3
Julius Höhne, Karl M Schebesch, Christian Ott, Alexander Brawanski, Max Lange
BACKGROUND: Perioperative seizure prophylaxis with antiepileptic drugs (AED) has been advocated in patients undergoing supratentorial craniotomy. The practice remains controversial. The reasoning presupposes that the possibility of an adverse drug reaction from the AED is lower than the probability of harm from a seizure. Even short periods of hypotension during the operation can lead to acute kidney and myocardial injury. We retrospectively evaluated cardiovascular effects and tolerability of Levetiracetam (LEV) alone, LEV and Lacosamid (LCM) as compared to Phenytoin (PHT)...
November 17, 2016: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/27828868/prenatal-diagnosis-and-genetic-discoveries-of-an-intracranial-mixed-neuronal-glial-tumor-a-case-report-and-literature-review
#4
Lijuan Sun, Qingqing Wu, Yan Pei, Jinghua Li, Jintang Ye, Wenxue Zhi, Yan Liu, Puqing Zhang
BACKGROUND: Congenital intracranial tumors as a group are quite rare, representing only 0.5% to 1.5% of all pediatric brain neoplasms. CASE REPORT: We reported a case of congenital mixed neuronal-glial tumor detected by ultrasound at 30 weeks of gestation. It showed that the tumor was 2.5 × 2.3 × 2.1 cm in size, located in the sellar region, regular shape, and slightly heterogeneous solid mass with a little cystic component. No color flow was present inside the tumor, but the peripheral encirclement by arterial circle of Willis...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27737716/brain-region-and-epilepsy-associated-differences-in-inflammatory-mediator-levels-in-medically-refractory-mesial-temporal-lobe-epilepsy
#5
Kenneth I Strauss, Kost V Elisevich
BACKGROUND: Epilepsy patients have distinct immune/inflammatory cell profiles and inflammatory mediator levels in the blood. Although the neural origin of inflammatory cells and mediators has been implied, few studies have measured these inflammatory components in the human brain itself. This study examines the brain levels of chemokines (8), cytokines (14), and vascular injury mediators (3) suspected of being altered in epilepsy. METHODS: Soluble protein extracts of fresh frozen resected hippocampus, entorhinal cortex, and temporal cortex from 58 medically refractory mesial temporal lobe epilepsy subjects and 4 nonepileptic neurosurgical subjects were assayed for 25 inflammation-related mediators using ultrasensitive low-density arrays...
October 13, 2016: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/27651472/seizure-control-as-a-new-metric-in-assessing-efficacy-of-tumor-treatment-in-low-grade-glioma-trials
#6
Edward K Avila, Marc Chamberlain, David Schiff, Jaap C Reijneveld, Terri S Armstrong, Roberta Ruda, Patrick Y Wen, Michael Weller, Johan A F Koekkoek, Sandeep Mittal, Yoshiki Arakawa, Ali Choucair, Jorge Gonzalez-Martinez, David R MacDonald, Ryo Nishikawa, Aashit Shah, Charles J Vecht, Paula Warren, Martin J van den Bent, Lisa M DeAngelis
Patients with low-grade glioma frequently have brain tumor-related epilepsy, which is more common than in patients with high-grade glioma. Treatment for tumor-associated epilepsy usually comprises a combination of surgery, anti-epileptic drugs (AEDs), chemotherapy, and radiotherapy. Response to tumor-directed treatment is measured primarily by overall survival and progression-free survival. However, seizure frequency has been observed to respond to tumor-directed treatment with chemotherapy or radiotherapy...
September 20, 2016: Neuro-oncology
https://www.readbyqxmd.com/read/27646413/activation-of-the-mtor-signaling-pathway-in-peritumoral-tissues-can-cause-glioma-associated-seizures
#7
Yang Yuan, Wang Xiang, Liu Yanhui, Liang Ruofei, Luo Jiewen, Jiang Shu, Mao Qing
Epileptic seizures, the most common symptom accompanying glioma, are closely associated with tumor growth and patient quality of life. However, the association between glioma and glioma-related epilepsy is poorly understood. In fact, findings related to the location of epileptogenicity have been inconsistent in previous studies. We investigated seizure foci in patients with glioma and the corresponding association between glioma-related epilepsy and the tumoral and peritumoral microenvironment. Clinical characteristics, extracellular electrophysiology, immunohistochemistry, and western blots were conducted on 12 patients with glioma; nine patients had histories of preoperative seizures while three did not...
September 19, 2016: Neurological Sciences
https://www.readbyqxmd.com/read/27568233/men-with-nonapnea-sleep-disorders-have-a-high-risk-of-developing-subsequent-epilepsy-a-nationwide-population-based-cohort-study
#8
Tomor Harnod, Yu-Chiao Wang, Chia-Hung Kao
OBJECTIVE: This nationwide population-based cohort study evaluated the effects of nonapnea sleep disorders (NSDs) on the development of epilepsy. METHODS: We identified 63,865 patients aged ≥20years, diagnosed with NSDs (ICD-9-CM: 307.4 or 780.5), and without coding for apnea-related sleep disorders (ICD-9-CM: 780.51, 780.53, or 780.57) during 2000-2003 as the NSD cohort. In addition, we enrolled a comparison cohort of 127,728 patients. We calculated the adjusted hazard ratio (aHR) for developing epilepsy (ICD-9-CM: 345) after adjustment for age, sex, comorbidities, and drug use...
October 2016: Preventive Medicine
https://www.readbyqxmd.com/read/27543366/applying-the-lessons-of-tuberous-sclerosis-the-2015-hower-award-lecture
#9
REVIEW
E Steve Roach
Tuberous sclerosis complex is a dominantly inherited disorder that variably affects the brain, skin, kidneys, heart, and other organs. Its neurological manifestations include epilepsy, autism, cognitive and behavioral dysfunction, and giant cell tumors. A mutation of either TSC1 or TSC2 can cause tuberous sclerosis complex. Their two gene products, hamartin and tuberin, form a physical complex which normally inhibits protein synthesis mediated through the mechanistic target of rapamycin, so a TSC1 or TSC2 mutation results in overactivation of the mechanistic target of rapamycin cascade...
October 2016: Pediatric Neurology
https://www.readbyqxmd.com/read/27484737/the-withdrawal-of-antiepileptic-drugs-in-patients-with-low-grade-and-anaplastic-glioma
#10
Johan A F Koekkoek, Linda Dirven, Martin J B Taphoorn
INTRODUCTION: The withdrawal of antiepileptic drugs (AEDs) in World Health Organization (WHO) grade II-III glioma patients with epilepsy is controversial, as the presence of a symptomatic lesion is often related to an increased risk of seizure relapse. However, some glioma patients may achieve long-term seizure freedom after antitumor treatment, raising questions about the necessity to continue AEDs, particularly when patients experience serious drug side effects. AREAS COVERED: In this review, we show the evidence in the literature from 1990-2016 for AED withdrawal in glioma patients...
August 2, 2016: Expert Review of Neurotherapeutics
https://www.readbyqxmd.com/read/27281943/-intracranial-tumors-and-epileptic-seizures-treatment-principles
#11
Andrea O Rossetti, Serge Vulliémoz
Epileptic seizures represent a relatively frequent issue in patients with intracranial neoplasms, and very frequently imply the start of an antiepileptic treatment as secondary prophylaxis. Even if the current level of evidence is relatively low, compounds with a limited risk of pharmacokinetic interactions are clearly preferred. Levetiracetam is probably the most prescribed agent in this setting, while pregabalin, valproate, lacosamide and lamotrigine are valuable alternatives. The treatment choice has to consider the different profiles of side effects and should be tailored to each patient...
April 27, 2016: Revue Médicale Suisse
https://www.readbyqxmd.com/read/27257839/complication-avoidance-in-laser-interstitial-thermal-therapy-lessons-learned
#12
Rachel Pruitt, Alexander Gamble, Karen Black, Michael Schulder, Ashesh D Mehta
OBJECTIVE Complications of laser interstitial thermal therapy (LITT) are underreported. The authors discuss how they have modified their technique in the context of technical and treatment-related adverse events. METHODS The Medtronic Visualase system was used in 49 procedures in 46 patients. Between 1 and 3 cooling catheters/laser fiber assemblies were placed, for a total of 62 implanted devices. Devices were placed using frameless stereotaxy (n = 3), frameless stereotaxy with intraoperative MRI (iMRI) (n = 9), iMRI under direct vision (n = 2), MRI alone (n = 1), or frame-based (n = 47) techniques...
June 3, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27221107/presurgmapp-a-matlab-toolbox-for-presurgical-mapping-of-eloquent-functional-areas-based-on-task-related-and-resting-state-functional-mri
#13
Huiyuan Huang, Zhongxiang Ding, Dewang Mao, Jianhua Yuan, Fangmei Zhu, Shuda Chen, Yan Xu, Lin Lou, Xiaoyan Feng, Le Qi, Wusi Qiu, Han Zhang, Yu-Feng Zang
The main goal of brain tumor surgery is to maximize tumor resection while minimizing the risk of irreversible postoperative functional sequelae. Eloquent functional areas should be delineated preoperatively, particularly for patients with tumors near eloquent areas. Functional magnetic resonance imaging (fMRI) is a noninvasive technique that demonstrates great promise for presurgical planning. However, specialized data processing toolkits for presurgical planning remain lacking. Based on several functions in open-source software such as Statistical Parametric Mapping (SPM), Resting-State fMRI Data Analysis Toolkit (REST), Data Processing Assistant for Resting-State fMRI (DPARSF) and Multiple Independent Component Analysis (MICA), here, we introduce an open-source MATLAB toolbox named PreSurgMapp...
October 2016: Neuroinformatics
https://www.readbyqxmd.com/read/27190492/histamine-and-immune-biomarkers-in-cns-disorders
#14
REVIEW
Ramón Cacabelos, Clara Torrellas, Lucía Fernández-Novoa, Francisco López-Muñoz
Neuroimmune dysregulation is a common phenomenon in different forms of central nervous system (CNS) disorders. Cross-links between central and peripheral immune mechanisms appear to be disrupted as reflected by a series of immune markers (CD3, CD4, CD7, HLA-DR, CD25, CD28, and CD56) which show variability in brain disorders such as anxiety, depression, psychosis, stroke, Alzheimer's disease, Parkinson's disease, attention-deficit hyperactivity disorder, migraine, epilepsy, vascular dementia, mental retardation, cerebrovascular encephalopathy, multiple sclerosis, brain tumors, cranial nerve neuropathies, mental retardation, and posttraumatic brain injury...
2016: Mediators of Inflammation
https://www.readbyqxmd.com/read/27142828/abundance-of-lrp12-c-rs9694676-allelic-promoter-variant-in-epilepsy-associated-gangliogliomas
#15
Barbara K Robens, Eva Gembé, Jana Fassunke, Albert J Becker, Susanne Schoch, Alexander Grote
AIMS: Chronic epilepsy associated gangliogliomas (GGs) represent tumors composed of irregularly distributed, often dysmorphic, neurons and neoplastic astroglia. The pathogenesis of GGs is largely unknown. Low-density lipoprotein receptor-related protein 12 (LRP12) is critical for brain development and involved in tumorigenesis of non-cerebral neoplasms. MAIN METHODS: Here, we have examined a potential role of LRP12 in the pathogenesis of GGs by a combination of mRNA quantification and molecular-biological in vitro assays...
June 15, 2016: Life Sciences
https://www.readbyqxmd.com/read/27033697/drug-delivery-to-cns-challenges-and-opportunities-with-emphasis-on-biomaterials-based-drug-delivery-strategies
#16
Ekta Khambhla, Viral Shah, Kalpesh Baviskar
The current epoch has witnessed a lifestyle impregnated with stress, which is a major cause of several neurological disorders. High morbidity and mortality rate due to neurological diseases and disorders have generated a huge social impact. Despite voluminous research, patients suffering from fatal and/or debilitating CNS diseases such as brain tumors, HIV, encephalopathy, Alzheimer's, epilepsy, Parkinson's, migraine and multiple sclerosis outnumbered those suffering from systemic cancer or heart diseases. The brain being a highly sensitive neuronal organ, has evolved with vasculature barriers, which regulates the efflux and influx of substances to CNS...
2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/26984574/brain-cytokines-and-disease
#17
Carlos R Plata-Salaman
Cytokines (e.g. various interleukins and subfamily members, tumor necrosis factors, interferons, chemokines and growth factors) act in the brain as immunoregulators and neuromodulators. Over a decade ago, the integrative article 'Immunoregulators in the Nervous System' (Neurosci Biobehav Rev 1991; 15: 185-215) provided a comprehensive framework of pivotal issues on cytokines and the nervous system that recently have been extensively studied. Cytokine profiles in the brain, including cytokine generation and action, have been studied in multiple models associated with neuropathophysiological conditions...
December 2002: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/26977406/potential-brain-language-reorganization-in-a-boy-with-refractory-epilepsy-an-fnirs-eeg-and-fmri-comparison
#18
Phetsamone Vannasing, Isotta Cornaggia, Catherine Vanasse, Julie Tremblay, Paola Diadori, Sébastien Perreault, Maryse Lassonde, Anne Gallagher
As part of a presurgical investigation for a resection of a tumor located in the left temporal brain region, we evaluated pre- and postsurgical language lateralization in a right-handed boy with refractory epilepsy. In this study, we compared functional near infrared spectroscopy (fNIRS) results obtained while the participant performed expressive and receptive language tasks with those obtained using functional magnetic resonance imaging (fMRI). This case study illustrates the potential for NIRS to contribute favorably to the localization of language functions in children with epilepsy and cognitive or behavioral problems and its potential advantages over fMRI in presurgical assessment...
2016: Epilepsy & Behavior Case Reports
https://www.readbyqxmd.com/read/26962341/a-clinical-study-to-identify-the-possible-etiology-of-complex-partial-seizures-using-magnetic-resonance-imaging-brain-findings-and-its-implications-on-treatment
#19
V Nancy Jeniffer, S Udayakumar, K Pushpalatha
CONTEXT: Epilepsy is one of the common neurological disorders worldwide. Fundamentally, there are two types of epilepsy-primary generalized epilepsy and localization-related epilepsy. Partial seizures account for about 40% of childhood seizures in some series and can be classified as simple or complex.[1] Partial seizures, more so the complex partial seizures (CPSs), are presumed to have a structural etiology. AIMS: (1) To study the magnetic resonance imaging (MRI) brain findings in CPSs in children aged 1-18 years...
October 2015: Journal of Pediatric Neurosciences
https://www.readbyqxmd.com/read/26891432/toxic-epidermal-necrolysis-in-patient-with-malignant-astrocytoma
#20
Dorota Kaczmarska-Turek, Paweł Bartnik, Joanna Kacperczyk, Jan Orlewski, Małgorzata Olszewska, Małgorzata Krasnodębska-Kiljańska
UNLABELLED: Toxic epidermal necrolysis (TEN) is a severe, life-threatening mucocutaneus adverse reaction, most commonly triggered by medication. Treatment in some aspects is still controversial. CASE REPORT: Patient with malignant astrocytoma, treated with palliative radiotherapy, developed massive erythema with bullae. Patient suffered from tumor-related epilepsy, treated pharmacologically with carbamazepine. After dermatological consultation TEN was diagnosed...
January 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
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