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https://www.readbyqxmd.com/read/29228686/dl-3n-butylphthalide-reduces-epileptiform-activity-through-glua2-lacking-calcium-permeable-ampars-in-epilepsy-models
#1
Qin Yang, Yi-Da Hu, Xue-Feng Wang, Fang-Shuo Zheng
Epilepsy is the most prevalent chronic neurological disorder, and its pathological mechanism indicates that an imbalance between excitatory and inhibitory neurotransmission leads to neuronal hyperexcitability. Previous studies have suggested that dl-3n-butylphthalide (NBP) regulates the excitatory neurotransmitter glutamate in the brains of epileptic mice, however, the mechanisms are unknown. We investigated behavioral and electrophysiological factors in rats using NBP. In an in vivo pentylenetetrazole (PTZ)-induced epileptic seizure animal model, NBP decreased the generalized tonic-clonic seizure (GTCS) severity...
November 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29227799/cognitive-function-after-status-epilepticus-versus-after-multiple-generalized-tonic-clonic-seizures
#2
Kjersti N Power, Arne Gramstad, Nils Erik Gilhus, Karl Ove Hufthammer, Bernt A Engelsen
OBJECTIVES: Status epilepticus (SE) is considered a risk for cognitive impairment. Studies have indicated that SE cause more cognitive decline than multiple lifetime generalized tonic clonic (GTC) seizures. The aim of the study was to investigate whether patients suffering from SE or from multiple lifetime GTC seizures have cognitive dysfunction, and if the disabilities differ between these groups. MATERIALS AND METHODS: Patients suffering from SE were evaluated shortly after the clinical post-ictal phase and again after one year...
November 28, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/29225049/oxidative-stress-and-na-k-atpase-activity-differential-regulation-in-brainstem-and-forebrain-of-wistar-audiogenic-rats-may-lead-to-increased-seizure-susceptibility
#3
Gabriela Machado Parreira, Maria Daniela Aparecida Resende, Israel José Pereira Garcia, Daniela Bueno Sartori, Eduardo Henrique de Lima Umeoka, Lívea Dornela Godoy, Norberto Garcia-Cairasco, Leandro Augusto Barbosa, Hérica de Lima Santos, Cristiane Queixa Tilelli
The Wistar Audiogenic Rat (WAR) is a well-characterized seizure-prone, inbred rodent strain that, when acutely stimulated with high-intensity sounds, develops brainstem-dependent tonic-clonic seizures that can evolve to limbic-like, myoclonic (forebrain) seizures when the acoustic stimuli are presented chronically (audiogenic kindling). In order to investigate possible mechanisms underlying WAR susceptibility to seizures, we evaluated Na,K-ATPase activity, Ca-ATPase activity, Mg-ATPase activity, lipid membrane composition and oxidative stress markers in whole forebrain and whole brainstem samples of naïve WAR, as compared to samples from control Wistar rats...
December 7, 2017: Brain Research
https://www.readbyqxmd.com/read/29218705/randomized-controlled-study-comparing-the-efficacy-of-rapid-and-slow-withdrawal-of-antiepileptic-drugs-during-long-term-video-eeg-monitoring
#4
Shambhu Kumar, Bhargavi Ramanujam, P S Chandra, Deepa Dash, Santosh Mehta, Sharma Anubha, Renjith Appukutan, Manit Kumar Rana, Manjari Tripathi
OBJECTIVE: Antiepileptic drugs (AEDs) are routinely withdrawn during long-term video-electroencephalography (EEG) monitoring (LTM), to record sufficient number of seizures. The efficacy of rapid and slow AED taper has never been compared in a randomized control trial (RCT), which was the objective of this study. METHODS: In this open-label RCT, patients aged 2-80 years with drug-resistant epilepsy (DRE) were randomly assigned (1:1) to rapid and slow AED taper groups...
December 7, 2017: Epilepsia
https://www.readbyqxmd.com/read/29214650/perampanel-an-ampa-receptor-antagonist-from-clinical-research-to-practice-in-clinical-settings
#5
REVIEW
J-J Tsai, T Wu, H Leung, T Desudchit, S Tiamkao, K-S Lim, A Dash
Epileptic seizures are refractory to treatment in approximately one-third of patients despite the recent introduction of many newer antiepileptic drugs (AEDs). Development of novel AEDs therefore remains a high priority. Perampanel is a first-in-class non-competitive selective AMPA receptor antagonist with a unique mechanism of action. Clinical efficacy and safety of perampanel as adjunctive treatment for focal seizures with/without secondary generalization (±SG) and primary generalized tonic-clonic (PGTC) seizures have been established in five phase 3 randomized controlled trials (RCTs), and a long-term extension study, and perampanel is approved as monotherapy for focal seizures ±SG in the USA...
December 7, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/29213041/-perampanel-in-the-treatment-of-patients-with-epilepsy
#6
F K Rider
Development of new antiepileptic drugs (AED) does not stop due to the fact that the number of patients with pharmacoresistant epilepsy remains at about 30%. One of the newest AEDs is perampanel (PER), a selective, non-competitive AMPA receptor antagonist to target post-synaptic glutamate transmission. PER is approved in the Russian Federation as adjunctive treatment for focal seizures with or without secondarily generalized seizures and for primary generalized tonic-clonic (PGTC) seizures in idiopathic generalized epilepsy (IGE) in patients with epilepsy aged ≥12 years...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/29213036/-pathomorphosis-of-idiopathic-generalized-epilepsy-juvenile-forms
#7
A S Kotov, Yu V Eliseev, Yu V Tokareva
AIM: To investigate the pathomorphosis of idiopathic generalized epilepsy (IGE) in the aspect of prognosis. MATERIAL AND METHODS: The study involved 1480 patients with epilepsy including 281 patients with IGE. RESULTS AND CONCLUSION: 'Juvenile' forms were diagnosed in 228 patients. Relapse of seizures in anamnesis occurred in 19% out of 105 patients with juvenile myoclonic epilepsy (JME). Remission was achieved in 59.2% out of 76 patients with long-term follow-up...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/29204018/role-of-biomarkers-in-differentiating-new-onset-seizures-from-psychogenic-nonepileptic-seizures
#8
Mahendra Javali, Purushottam Acharya, Shripal Shah, Rohan Mahale, Pushparaja Shetty, Srinivasa Rangasetty
Introduction: Review of literature revealed very limited studies considering a combination of serum prolactin (PRL) and serum creatine kinase (CK) as markers for differentiating epileptic and psychogenic nonepileptic seizures (PNES). Therefore, in the present study, we analyzed the role of serum PRL and serum CK, individually and in combination. Methodology: This prospective study was conducted in a tertiary care medical teaching hospital over a period of 18 months...
October 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/29198411/epileptic-spasms-secondary-to-acute-cerebral-and-cerebellar-encephalitis
#9
Tohru Okanishi, Ayataka Fujimoto, Risa Hashimoto, Mitsuyo Nishimura, Sotaro Kanai, Miho Ogawa, Takayuki Suzuki, Hirotaka Motoi, Yukitoshi Takahashi, Hideo Enoki
BACKGROUND: Patients with infection-related acute encephalitis sometimes develop epilepsy in the chronic phase of the disease. Patients with postencephalitic epilepsy usually develop partial seizures due to the lesions generated by the encephalitis. We report a case who developed late-onset epileptic spasms after acute cerebral and cerebellar encephalitis. CASE REPORT: A 5-year-old girl showed severe tremor, gait ataxia, partial or generalized tonic-clonic seizures, hyperactivity, and panic attacks after a mild enterocolitis...
November 29, 2017: Brain & Development
https://www.readbyqxmd.com/read/29194766/absence-seizures-as-a-feature-of-juvenile-myoclonic-epilepsy-in-rhodesian-ridgeback-dogs
#10
F Wielaender, F M K James, M A Cortez, G Kluger, J N Neßler, A Tipold, H Lohi, A Fischer
Myoclonic epilepsy in Rhodesian Ridgeback (RR) dogs is characterized by myoclonic seizures occurring mainly during relaxation periods, a juvenile age of onset and generalized tonic-clonic seizures in one-third of patients. An 8-month-old female intact RR was presented for myoclonic seizures and staring episodes that both started at 10 weeks of age. Testing for the DIRAS1 variant indicated a homozygous mutant genotype. Unsedated wireless video-electroencephalography (EEG) identified frequent, bilaterally synchronous, generalized 4 Hz spike-and-wave complexes (SWC) during the staring episodes in addition to the characteristic myoclonic seizures with generalized 4-5 Hz SWC or 4-5 Hz slowing...
November 30, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29178011/pyridoxine-dependent-epilepsies-an-observational-study-on-clinical-diagnostic-therapeutic-and-prognostic-features-in-a-pediatric-cohort
#11
Raffaele Falsaperla, Maria Stella Vari, Irene Toldo, Alessandra Murgia, Stefano Sartori, Marilena Vecchi, Agnese Suppiej, Alberto Burlina, Mario Mastrangelo, Vincenzo Leuzzi, Valentina Marchiani, Paola De Liso, Giuseppe Capovilla, Pasquale Striano, Giovanna Vitaliti
The aim of our study was to describe the clinical, electroencephalogram, molecular findings and the diagnostic and therapeutic flow-chart of children with pyridoxine-dependent epilepsies (PDEs). We performed a retrospective observational study on children with PDEs, diagnosed and followed-up in Italian Pediatric Departments. In each centre, the authors collected data from a cohort of children admitted for intractable seizures, responsive to pyridoxine administration and resistant to other anticonvulsant therapies...
November 25, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/29157166/sub-chronic-boldine-treatment-exerts-anticonvulsant-effects-in-mice
#12
Leila Moezi, Siranoush Yahosseini, Akram Jamshidzadeh, Mona Dastgheib, Fateme Pirsalami
OBJECTIVES: Boldine is an aporphine alkaloid which is best known for its antioxidant, anti-inflammatory and cytoprotective characteristics. It seems that all these activities are related to boldine ability to scavenge reactive free radicals. As indicated by several pieces of evidence, free radicals generation are involved in initiation and propagation of epilepsy. METHODS: In this study, we investigated the sub-chronic effects of boldine on intraperitoneal and intravenous pentylenetetrazole (PTZ) models and electroshock-induced seizure in mice...
November 20, 2017: Neurological Research
https://www.readbyqxmd.com/read/29141182/optogenetic-activation-of-5-ht-neurons-in-the-dorsal-raphe-suppresses-seizure-induced-respiratory-arrest-and-produces-anticonvulsant-effect-in-the-dba-1-mouse-sudep-model
#13
Honghai Zhang, Haiting Zhao, Chang Zeng, Christa Van Dort, Carl L Faingold, Norman E Taylor, Ken Solt, Hua-Jun Feng
Sudden unexpected death in epilepsy (SUDEP) is a devastating epilepsy complication. Seizure-induced respiratory arrest (S-IRA) occurs in many witnessed SUDEP patients and animal models as an initiating event leading to death. Thus, understanding the mechanisms underlying S-IRA will advance the development of preventive strategies against SUDEP. Serotonin (5-HT) is an important modulator for many vital functions, including respiration and arousal, and a deficiency of 5-HT signaling is strongly implicated in S-IRA in animal models, including the DBA/1 mouse...
November 13, 2017: Neurobiology of Disease
https://www.readbyqxmd.com/read/29132468/-benign-infantile-convulsions-associated-with-mild-gastroenteritis-a-clinical-analysis-and-follow-up-study
#14
Chao-Chao Xue, Ya-Feng Liang, Guo-Quan Pan, Chang-Chong Li
OBJECTIVE: To study the clinical features and prognosis of benign infantile convulsions associated with mild gastroenteritis (BICE). METHODS: A retrospective analysis was performed for the clinical data of 436 children with BICE, and among these children, 206 were followed up for 1.5 to 7 years. Some parents were invited to complete the Weiss Functional Defect Scale to evaluate the long-term social function. RESULTS: The peak age of onset of BICE was 13-24 months, and BICE had a higher prevalence rate in September to February of the following year...
November 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/29126048/lennox-gastaut-syndrome-in-adulthood-long-term-clinical-follow-up-of-38-patients-and-analysis-of-their-recorded-seizures
#15
Aglaia Vignoli, Gaia Oggioni, Giovanni De Maria, Angela Peron, Miriam Nella Savini, Elena Zambrelli, Valentina Chiesa, Francesca La Briola, Katherine Turner, Maria Paola Canevini
Lennox-Gastaut syndrome (LGS) is a severe epileptic encephalopathy with childhood onset that usually continues through adolescence and into adulthood. In the long term, patients with this condition still have intractable seizures, intellectual disability, behavioral problems, and physical comorbidities. The aim of this study was to describe the clinical and EEG characteristics of a group of adults with Lennox-Gastaut syndrome. We identified 38 (22 females, 16 males) patients with LGS older than age 18years at their last evaluation, with mean age of 43...
November 7, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29125184/hepatic-and-hippocampal-cytochrome-p450-enzyme-overexpression-during-spontaneous-recurrent-seizures
#16
Leonie Runtz, Benoit Girard, Marion Toussenot, Julie Espallergues, Alexis Fayd'Herbe De Maudave, Alexandre Milman, Frederic deBock, Chaitali Ghosh, Nathalie C Guérineau, Jean-Marc Pascussi, Federica Bertaso, Nicola Marchi
OBJECTIVE: Available evidence points to a role of cytochrome P450 (Cyp) drug biotransformation enzymes in central nervous system diseases, including epilepsy. Deviations in drug pharmacokinetic profiles may impact therapeutic outcomes. Here, we ask whether spontaneous recurrent seizure (SRS) activity is sufficient to modulate the expression of major Cyp enzymes in the liver and brain. METHODS: Unilateral intrahippocampal (IH) kainic acid (KA) injections were used to elicit nonconvulsive status epilepticus (SE), epileptogenesis, and SRS, as monitored by video-electroencephalography...
November 10, 2017: Epilepsia
https://www.readbyqxmd.com/read/29124439/lennox-gastaut-syndrome-a-comprehensive-review
#17
Ali A Asadi-Pooya
Lennox-Gastaut syndrome (LGS) is considered an epileptic encephalopathy and is defined by a triad of multiple drug-resistant seizure types, a specific EEG pattern showing bursts of slow spike-wave complexes or generalized paroxysmal fast activity, and intellectual disability. The prevalence of LGS is estimated between 1 and 2% of all patients with epilepsy. The etiology of LGS is often divided into two groups: identifiable (genetic-structural-metabolic) in 65 to 75% of the patients and LGS of unknown cause in others...
November 9, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/29123866/pulmonary-edema-following-tonic-clonic-seizure
#18
Hiroaki Izumida, Koichiro Homma, Junichi Sasaki, Shingo Hori
No abstract text is available yet for this article.
April 2017: Acute Medicine & Surgery
https://www.readbyqxmd.com/read/29120117/is-apolipoprotein-e-%C3%AE%C2%B52-associated-with-delayed-onset-of-non-lesional-temporal-lobe-epilepsy
#19
Davor Sporiš, Silvio Bašić, Jadranka Sertić, Darija Mahović Lakušić, Tomislav Babić
The aim of the study was to evaluate the possible association between Apo E polymorphisms and age at seizure onset in patients with non-lesional temporal lobe epilepsy. Eighty patients with non-lesional temporal lobe epilepsy with or without bilateral tonic-clonic propagation were analyzed. Age at seizure onset was defined as age at the first unequivocal seizure (excluding febrile convulsions). ApoE alleles were determined by a procedure where genome DNA was amplified by chain reaction along with polymerase, using the LightCycler kit (Roche) for ApoE mutations on codons 112 and 158...
March 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29114309/pneumocephalus-following-dorsal-laminectomy-an-unusual-complication
#20
Brajesh Kumar, Chirantan Banerjee, Samarendra Nath Ghosh
A 16-year-old male presented at Bangur Institute of Neurosciences Neurosurgery Outpatient Department with history of gradually progressive paraparesis for 5 months associated with stiffness, urinary hesitancy, and urge incontinence for last 2 months. Magnetic resonance imaging spine was done which showed cystic intradural extramedullary space occupying lesion at D4/D5 to D9. Patient had 2 episodes of generalized tonic-clonic seizure on the day 4. Computed tomography scan showed pneumocephalus. Histopathological examination report was that of nonspecific inflammatory cyst...
October 2017: Asian Journal of Neurosurgery
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