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https://www.readbyqxmd.com/read/28812301/changing-treatment-paradigms-for-brain-metastases-from-melanoma-part-1-diagnosis-prognosis-symptom-control-and-local-treatment
#1
REVIEW
Vyshak Alva Venur, Pauline Funchain, Rupesh Kotecha, Samuel T Chao, Manmeet S Ahluwalia
Melanoma is the third most common cause of brain metastases, after lung and breast cancer. The management of melanoma brain metastases can be broadly divided into symptom control and therapeutic strategies. Supportive treatments include corticosteroids to reduce peritumoral edema, antiepileptics for seizure control, and medications to preserve cognitive function. Until recently, therapeutic strategies consisted primarily of local treatments, including surgery, whole-brain radiation therapy (WBRT), and stereotactic radiosurgery (SRS)...
August 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/28812237/pharmacological-effects-on-ceroid-lipofuscin-and-neuronal-structure-in-cln3-%C3%A2-ex7-8-mouse-brain-cultures
#2
Douglas E Brenneman, David A Pearce, Attila Kovacs, Shawn DeFrees
Juvenile Batten disease (JBD) is an inherited disorder that is characterized by the development of blindness, seizures, and progressive motor, psychiatric, and cognitive impairment. A model of JBD expressing the predominant human mutation (Cln3 (∆ex7/8) ) has been explored. Dissociated brain cultures from Cln3 (∆ex7/8) knock-in mice were compared to wild type (WT) for effects on granules of ceroid lipofuscin (CL) and neuronal structure. Utilizing high content image analysis of CL granules identified with antibodies to mitochondrial ATP synthase subunit c or tripeptidyl peptidase-1, significant increases in the areas for both immunoreactive granules were observed in Cln3 (∆ex7/8) cultures in comparison to WT...
August 15, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/28812113/-pathophysiology-of-intracranial-injuries
#3
REVIEW
D Lahner, G Fritsch
Traumatic brain injury (TBI) constitutes a heterogeneous condition that affects the most complex organ of the human body. It is commonly classified by its location as focal injury (e.g. epidural hematoma) and diffuse injury (e.g. diffuse axonal shearing injury) as well as by primary and secondary tissue injury. Accordingly, direct mechanical force causes the primary insult. The tissue damage occurring afterwards is subsumed under the term secondary brain damage. Some of these processes are overlapping and include in the early phase local cerebral ischemia resulting in excitotoxicity, which together with the triggered neuroinflammatory cascade causes the formation of cerebral edema and ultimately increased intracranial pressure once the intracranial compliance is exhausted...
August 15, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28812061/behavioral-comorbidities-and-drug-treatments-in-a-zebrafish-scn1lab-model-of-dravet-syndrome
#4
Brian P Grone, Tiange Qu, Scott C Baraban
Loss-of-function mutations in SCN1A cause Dravet syndrome (DS), a catastrophic childhood epilepsy in which patients experience comorbid behavioral conditions, including movement disorders, sleep abnormalities, anxiety, and intellectual disability. To study the functional consequences of voltage-gated sodium channel mutations, we use zebrafish with a loss-of-function mutation in scn1lab, a zebrafish homolog of human SCN1A. Homozygous scn1lab(s552/s552) mutants exhibit early-life seizures, metabolic deficits, and early death...
July 2017: ENeuro
https://www.readbyqxmd.com/read/28812044/monte-carlo-simulations-of-randomized-clinical-trials-in-epilepsy
#5
Daniel M Goldenholz, Joseph Tharayil, Robert Moss, Evan Myers, William H Theodore
BACKGROUND: The placebo response in epilepsy randomized clinical trials (RCTs) has recently been shown to largely reflect underlying natural variability in seizure frequency. Based on this observation, we sought to explore the parameter space of RCT design to optimize trial efficiency and cost. METHODS: We used one of the world's largest patient reported seizure diary databases, SeizureTracker.com to derive virtual patients for simulated RCTs. We ran 1000 randomly generated simulated trials using bootstrapping (sampling with replacement) for each unique combination of trial parameters, sweeping a large set of parameters in durations of the baseline and test periods, number of patients, eligibility criteria, drug effect size, and patient dropout...
August 2017: Annals of Clinical and Translational Neurology
https://www.readbyqxmd.com/read/28811941/seizure-associated-takotsubo-syndrome-a-rare-combination
#6
Htay Htay Kyi, Nour Aljariri Alhesan, Sunil Upadhaya, Samer Al Hadidi
Takotsubo cardiomyopathy (TC) is increasingly recognized in neurocritical care population especially in postmenopausal females. We are presenting a 61-year-old African American female with past medical history of epilepsy, bipolar disorder, and hypertension who presented with multiple episodes of seizures due to noncompliance with antiepileptic medications. She was on telemetry which showed ST alarm. Electrocardiogram (ECG) was ordered and showed ST elevation in anterolateral leads and troponins were positive...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28811861/importance-of-distinguishing-between-mitochondrial-encephalomyopathy-with-elderly-onset-of-stroke-like-episodes-and-cerebral-infarction
#7
Syuichi Tetsuka, Asako Tagawa, Tomoko Ogawa, Mieko Otsuka, Ritsuo Hashimoto, Hiroyuki Kato
The most common disease-causing mitochondrial DNA (mtDNA) mutation in mitochondrial encephalomyopathy (ME) with lactic acidosis and stroke-like episodes (MELAS) is m.3243A>G. In the future, the incidence of patients with cerebral infarction and diabetes mellitus is expected to increase tremendously. Additionally, the A3243G mutation typical of diabetes is estimated to be present in approximately 2% of all diabetes patients, which suggests that the potential disease population with a mitochondrial disorder is greater than previously thought, and there may have been many cases among the elderly that were misdiagnosed...
September 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28811775/metformin-attenuate-ptz-induced-apoptotic-neurodegeneration-in-human-cortical-neuronal-cells
#8
Fehmida Bibi, Ikram Ullah, Myeong Ok Kim, Muhammad Imran Naseer
OBJECTIVE: Seizures are one of the neurodegenerative disorders of human being. Metformin has antioxidant properties and commonly used as an oral antidiabetic drug. The current study was aimed to observe the neuroprotective effect of metformin against PTZ-induced apoptotic neurodegeneration in human cortical neuronal cell culture. METHODS: To observe that exposure of pentylenetetrazol (PTZ) at the dose of (30mM) for 30 minutes induced neuronal cell death by activation of caspase-3 in human cortical neuronal 2 (HCN-2) cell line...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28811646/pafah1b1-haploinsufficiency-disrupts-gaba-neurons-and-synaptic-e-i-balance-in-the-dentate-gyrus
#9
Matthew T Dinday, Kelly M Girskis, Sunyoung Lee, Scott C Baraban, Robert F Hunt
Hemizygous mutations in the human gene encoding platelet-activating factor acetylhydrolase IB subunit alpha (Pafah1b1), also called Lissencephaly-1, can cause classical lissencephaly, a severe malformation of cortical development. Children with this disorder suffer from deficits in neuronal migration, severe intellectual disability, intractable epilepsy and early death. While many of these features can be reproduced in Pafah1b1(+/-) mice, the impact of Pafah1b1(+/-) on the function of individual subpopulations of neurons and ultimately brain circuits is largely unknown...
August 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28811247/pharmacological-analysis-of-poecilotheria-spider-venoms-in-mice-provides-clues-for-human-treatment
#10
Alexander Andreev-Andrievskiy, Anfisa Popova, Evgeniia Lagereva, Daniil Osipov, Antonina Berkut, Eugene Grishin, Alexander Vassilevski
Bites of tiger spiders belonging to Poecilotheria genus cause moderate to severe pain and long-lasting local or generalized muscle cramps in humans. Bites occur in regions of the spiders' natural habitat, India and Sri Lanka, but the popularity of these colorful tarantulas as pets leads to reports of envenomation cases worldwide. Treatment is predominantly symptomatic and often inadequate since there is almost no clinical or toxicology research data available, and physicians outside India or Sri Lanka typically have no experience in treating such cases...
August 12, 2017: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/28811085/the-use-of-phenobarbital-and-other-anti-seizure-drugs-in-newborns
#11
REVIEW
Mohamed El-Dib, Janet S Soul
Neonatal seizures constitute the most frequent presenting neurologic sign encountered in the neonatal intensive care unit. Despite limited efficacy and safety data, phenobarbital continues to be used near-universally as the first-line anti-seizure drug (ASD) in neonates. The choice of second-line ASDs varies by provider and institution, and is still not supported by sufficient scientific evidence. In this review, we discuss the available evidence supporting the efficacy, mechanism of action, potential adverse effects, key pharmacokinetic characteristics such as interaction with therapeutic hypothermia, logistical issues, and rationale for use of neonatal ASDs...
August 12, 2017: Seminars in Fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28811058/early-detection-of-tuberous-sclerosis-complex-an-opportunity-for-improved-neurodevelopmental-outcome
#12
Clara W T Chung, John A Lawson, Vanessa Sarkozy, Kate Riney, Orli Wargon, Antonia W Shand, Stephen Cooper, Harrison King, Sean E Kennedy, David Mowat
BACKGROUND: Tuberous sclerosis complex (TSC) is an autosomal dominant condition associated with epilepsy, benign tumors, and variable neurodevelopmental outcomes. The diagnosis is most commonly made after epilepsy onset, although a proportion are diagnosed prenatally. Presymptomatic or early treatment with agents such as vigabatrin offers the hope of improved neurodevelopmental outcome. Therefore early diagnosis, before the onset of seizures, is important. In a cohort of children with TSC, we evaluated the age and mode of initial presentation, assessed the neurocognitive and epilepsy outcome, and analyzed whether those diagnosed before the onset of seizures have a different outcome compared with those diagnosed postseizures...
May 26, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28810185/outcome-of-treatment-changes-in-patients-with-drug-resistant-chronic-epilepsy-a-tertiary-center-experience
#13
E Martínez-Lizana, F Gil-Lopez, A Donaire, J Aparicio, A Brandt, M Carreño
BACKGROUND: Previous studies suggest that changing patients' anti-epileptic drug regimen can reduce the frequency of seizures. The approval of new anti-epileptic drugs with different modes of action during the last decades has provided multiple options for the treatment of epilepsy, although the efficacy of these new drugs is controversial. We aimed to determine the effects of adding or changing to a previously untried anti-epileptic drug, including recently approved drugs, on the frequency of seizures in patients with drug-resistant epilepsy...
July 29, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28808901/the-utility-of-routine-intensive-care-admission-for-patients-undergoing-intracranial-neurosurgical-procedures-a-systematic-review
#14
Cesar Cimonari de Almeida, M Dustin Boone, Yosef Laviv, Burkhard S Kasper, Clark C Chen, Ekkehard M Kasper
BACKGROUND: Patients who have undergone intracranial neurosurgical procedures have traditionally been admitted to an intensive care unit (ICU) for close postoperative neurological observation. The purpose of this study was to systematically review the evidence for routine ICU admission in patients undergoing intracranial neurosurgical procedures and to evaluate the safety of alternative postoperative pathways. METHODS: We were interested in identifying studies that examined selected patients who presented for elective, non-emergent intracranial surgery whose postoperative outcomes were compared as a function of ICU versus non-ICU admission...
August 14, 2017: Neurocritical Care
https://www.readbyqxmd.com/read/28808801/post-operative-seizures-after-burr-hole-evacuation-of-chronic-subdural-hematomas-is-prophylactic-anti-epileptic-medication-needed
#15
Gabriel Flores, Juan C Vicenty, Emil A Pastrana
INTRODUCTION: There are limited data with regards to the associated risk of post-operative seizures in patients with surgically treated chronic subdural hematomas (CSDHs). The use of anti-epileptic drugs (AEDs) is associated with significant side effects. METHODS: A retrospective chart review was performed on patients operated via burr hole for CSDH in our institution from 2004 to 2013. Post-operative seizures at 1-year follow-up were identified. Demographic data, medical history, and imaging characteristics were recorded...
August 15, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28808794/thiol-disulfide-homeostasis-as-a-novel-indicator-of-oxidative-stress-in-children-with-simple-febrile-seizures
#16
Bahri Elmas, Özcan Erel, Dilek Ersavaş, Yusuf Yürümez
Simple febrile seizures are generally benign, but during the seizure, elevated levels of glutamate and high levels of oxygen use due to the high metabolic brain activity result in oxidative stress. However, the relationship between febrile seizures and oxidative stress remains unclear. In this study, we investigated thiol/disulfide homeostasis as a new oxidative stress parameter in patients with simple febrile seizures. This study was performed between February 2016 and May 2016 at the Pediatric Emergency Unit...
August 14, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28808783/post-stroke-seizures-are-clinically-underestimated
#17
Carla Bentes, Hugo Martins, Ana Rita Peralta, Carlos Casimiro, Carlos Morgado, Ana Catarina Franco, Ana Catarina Fonseca, Ruth Geraldes, Patrícia Canhão, Teresa Pinho E Melo, Teresa Paiva, José M Ferro
Cerebrovascular disease is the leading cause of epilepsy in adults, although post-stroke seizures reported frequency is variable and few studies used EEG in their identification. To describe and compare EEG and clinical epileptic manifestations frequency in patients with an anterior circulation ischaemic stroke. Prospective study of acute anterior circulation ischaemic stroke patients, consecutively admitted to a Stroke Unit over 24 months and followed-up for 1 year. All patients underwent standardized clinical and diagnostic assessment...
August 14, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28808765/presentation-and-symptom-interval-in-children-with-central-nervous-system-tumors-a-single-center-experience
#18
Chiara Stocco, Chiara Pilotto, Eva Passone, Agostino Nocerino, Raffaello Tosolini, Anna Pusiol, Paola Cogo
PURPOSE: The aim of this study is to describe the symptoms and signs of central nervous system (CNS) tumors in a pediatric population and to assess the time interval between the onset of the disease and the time of the diagnosis. METHODS: A retrospective observational study was conducted at our Oncology Pediatric Unit between January 2000 and November 2011. We included 75 children between 5 months and 16 years (mean age of 7.8 ± 4.7 years), with male to female ratio of 3:2...
August 14, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28808618/neuroimaging-studies-in-patients-with-psychogenic-non-epileptic-seizures-a-systematic-meta-review
#19
REVIEW
Marco Mcsweeney, Markus Reuber, Liat Levita
Psychogenic Non-epileptic Seizures (PNES) are 'medically unexplained' seizure-like episodes which superficially resemble epileptic seizures but which are not caused by epileptiform discharges in the brain. While many experts see PNES disorder as a multifactorial biopsychosocial condition, little is known about the neurobiological processes which may predispose, precipitate and/or perpetuate PNES symptomology. This systematic meta-review advances our knowledge and understanding of the neurobiological correlates of PNES by providing an up-to-date assessment of neuroimaging studies performed on individuals with PNES...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28808577/transition-from-intravenous-to-enteral-ketamine-for-treatment-of-nonconvulsive-status-epilepticus
#20
Michael A Pizzi, Prasuna Kamireddi, William O Tatum, Jerry J Shih, Daniel A Jackson, William D Freeman
BACKGROUND: Nonconvulsive status epilepticus (NCSE) is a diagnosis that is often challenging and one that may progress to refractory NCSE. Ketamine is a noncompetitive N-methyl-d-aspartate antagonist that increasingly has been used to treat refractory status epilepticus. Current Neurocritical Care Society guidelines recommend intravenous (IV) ketamine infusion as an alternative treatment for refractory status epilepticus in adults. On the other hand, enteral ketamine use in NCSE has been reported in only 6 cases (1 adult and 5 pediatric) in the literature to date...
2017: Journal of Intensive Care
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