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Epilepsy and stroke

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https://www.readbyqxmd.com/read/28315370/control-of-mitochondrial-physiology-and-cell-death-by-the-bcl-2-family-proteins-bax-and-bok
#1
Beatrice D'Orsi, Julia Mateyka, Jochen H M Prehn
Neuronal cell death is often triggered by events that involve intracellular increases in Ca(2+). Under resting conditions, the intracellular Ca(2+) concentration is tightly controlled by a number of extrusion and sequestering mechanisms involving the plasma membrane, mitochondria, and ER. These mechanisms act to prevent a disruption of neuronal ion homeostasis. As these processes require ATP, excessive Ca(2+) overloading may cause energy depletion, mitochondrial dysfunction, and may eventually lead to Ca(2+)-dependent cell death...
March 14, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28303498/validation-of-a-preclinical-drug-screening-platform-for-pharmacoresistant-epilepsy
#2
Melissa L Barker-Haliski, Kristina Johnson, Peggy Billingsley, Jennifer Huff, Laura J Handy, Rizvana Khaleel, Zhenmei Lu, Matthew J Mau, Timothy H Pruess, Carlos Rueda, Gerald Saunders, Tristan K Underwood, Fabiola Vanegas, Misty D Smith, Peter J West, Karen S Wilcox
The successful identification of promising investigational therapies for the treatment of epilepsy can be credited to the use of numerous animal models of seizure and epilepsy for over 80 years. In this time, the maximal electroshock test in mice and rats, the subcutaneous pentylenetetrazol test in mice and rats, and more recently the 6 Hz assay in mice, have been utilized as primary models of electrically or chemically-evoked seizures in neurologically intact rodents. In addition, rodent kindling models, in which chronic network hyperexcitability has developed, have been used to identify new agents...
March 16, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28281491/status-epilepticus-refractory-and-super-refractory
#3
REVIEW
Deepanshu Dubey, Jayantee Kalita, Usha K Misra
Status epilepticus (SE) is an important neurological emergency. It is defined as seizures lasting for 5 minutes or more or recurrent seizures without recovery of consciousness to baseline between the attacks. Refractory SE (RSE) is defined as SE persisting despite sufficient dose of benzodiazepines and at least one antiepileptic drug (AED), irrespective of time. Super refractory SE (SRSE) is defined as SE that continues for 24 hours or more after the use of anesthetic therapy, including cases that recur on weaning of the anesthestic agent...
2017: Neurology India
https://www.readbyqxmd.com/read/28277939/potassium-channel-expression-and-function-in-microglia-plasticity-and-possible-species-variations
#4
Hai M Nguyen, Linda V Blomster, Palle Christophersen, Heike Wulff
Potassium channels play important roles in microglia functions and thus constitute potential targets for the treatment of neurodegenerative diseases like Alzheimer's, Parkinson's and stroke. However, uncertainty still prevails as to which potassium channels are expressed and at what levels in different species, how the expression pattern changes upon activation with M1 or M2 polarizing stimuli compared to more complex exposure paradigms, and - most importantly - how these findings relate to the in vivo situation...
March 1, 2017: Channels
https://www.readbyqxmd.com/read/28275952/the-anticonvulsant-screening-program-of-the-national-institute-of-neurological-disorders-and-stroke-nih-history-and-contributions-to-clinical-care-in-the-twentieth-century-and-beyond
#5
Roger J Porter, Harvey J Kupferberg
The anticonvulsant screening program (ASP) of the national institute of neurological disorders and stroke (NINDS), National Institutes of Health has made substantial contributions to the drug armamentarium of the clinical neurologist. This program, originally a part of the overall Drug Development Program of the Epilepsy Branch, has been fortunate to have talented leadership, both at NINDS in Maryland and at the major contract site, the University of Utah-over a remarkable period of more than 40 years. Future discoveries by the ASP (now renamed the Epilepsy Therapy Screening) can be expected to make additional contributions to improving the health of persons with epilepsy...
March 9, 2017: Neurochemical Research
https://www.readbyqxmd.com/read/28274814/the-role-of-aquaporin-4-in-synaptic-plasticity-memory-and-disease
#6
REVIEW
Jacqueline A Hubbard, Jenny I Szu, Devin K Binder
Since the discovery of aquaporins, it has become clear that the various mammalian aquaporins play critical physiological roles in water and ion balance in multiple tissues. Aquaporin-4 (AQP4), the principal aquaporin expressed in the central nervous system (CNS, brain and spinal cord), has been shown to mediate CNS water homeostasis. In this review, we summarize new and exciting studies indicating that AQP4 also plays critical and unanticipated roles in synaptic plasticity and memory formation. Next, we consider the role of AQP4 in Alzheimer's disease (AD), amyotrophic lateral sclerosis (ALS), Parkinson's disease (PD), multiple sclerosis (MS), neuromyelitis optica (NMO), epilepsy, traumatic brain injury (TBI), and stroke...
March 6, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28274640/clinical-predictors-of-attention-and-executive-functioning-outcomes-in-children-after-perinatal-arterial-ischemic-stroke
#7
Danielle D Bosenbark, Lauren Krivitzky, Rebecca Ichord, Arastoo Vossough, Aashim Bhatia, Laura E Jastrzab, Lori Billinghurst
BACKGROUND: Children with perinatal arterial ischemic stroke (PAIS) are at risk for later neurocognitive and behavioral deficits, yet the clinical predictors of these outcomes are understudied. We examined the influence of clinical and infarct characteristics on attention and executive functioning in children following PAIS. METHODS: Forty children born at term (≥37 weeks' gestation) with PAIS (28 with neonatal arterial ischemic stroke and 12 with presumed PAIS) underwent a comprehensive neuropsychological battery at age three to 16 years (median age 7...
January 25, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28250326/medication-and-driving-appropriate-interventions
#8
Masahito Hitosugi
 Sudden illness while driving has been identified as a major cause of vehicle collisions, accounting for approximately 1 in 10 collisions. Because most drivers who experience sudden illnesses while driving do not perform avoidance maneuvers, the improvement of drivers' health is being promoted as a traffic safety strategy. Although stroke, heart disease, and epilepsy are common causes of sudden illness, common symptoms, such as abdominal cramps, vertigo, and syncope can also cause problems during driving...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/28246702/-interaction-between-heart-and-brain-in-sudden-cardiac-death
#9
M Fatar, I Akin, M Borggrefe, M Platten, A Alonso
The heart and brain are constantly interacting under normal physiological conditions. This interaction is under the control of the autonomic nervous system with parasympathetic and sympathetic nerve fibers including the participating brain structures. Pathological conditions, such as epilepsy and ischemic cerebral stroke influence heart function, especially the frequency and may result in severe arrhythmia. An asymmetric influence of the left and right brain hemispheres on the heart rate is still under debate...
February 28, 2017: Herz
https://www.readbyqxmd.com/read/28245815/fast-magnetic-resonance-spectroscopic-imaging-techniques-in-human-brain-applications-in-multiple-sclerosis
#10
REVIEW
Oun Al-Iedani, Jeannette Lechner-Scott, Karen Ribbons, Saadallah Ramadan
Multi voxel magnetic resonance spectroscopic imaging (MRSI) is an important imaging tool that combines imaging and spectroscopic techniques. MRSI of the human brain has been beneficially applied to different clinical applications in neurology, particularly in neurooncology but also in multiple sclerosis, stroke and epilepsy. However, a major challenge in conventional MRSI is the longer acquisition time required for adequate signal to be collected. Fast MRSI of the brain in vivo is an alternative approach to reduce scanning time and make MRSI more clinically suitable...
February 28, 2017: Journal of Biomedical Science
https://www.readbyqxmd.com/read/28242476/an-investigation-of-the-characteristics-of-outpatients-with-epilepsy-and-antiepileptic-drug-utilization-in-a-multicenter-cross-sectional-study-in-china
#11
Peimin Yu, Dong Zhou, Weiping Liao, Xin Wang, Yuping Wang, Tiancheng Wang, Yuan Wu, Senyang Lang, Weihong Lin, Yijun Song, Heqing Zhao, Meng Cai, Zhen Hong
OBJECTIVES: This study aimed to describe the distribution of seizure types, clinical characteristics, and antiepileptic drug (AED) utilization in patients with epilepsy visiting tertiary hospitals in China. METHODS: This was an observational, cross-sectional epidemiology study conducted at 11 tertiary hospitals across China from May 2014 to November 2014. A total of 1603 patients, of either sex or any age with confirmed diagnosis of epilepsy, visiting outpatient clinics at tertiary hospitals were screened and enrolled...
February 24, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28239781/validation-of-the-promis-%C3%A2-measures-of-self-efficacy-for-managing-chronic-conditions
#12
Ann L Gruber-Baldini, Craig Velozo, Sergio Romero, Lisa M Shulman
PURPOSE: The Patient-Reported Outcomes Measurement Information System(®) (PROMIS(®)) was designed to develop, validate, and standardize item banks to measure key domains of physical, mental, and social health in chronic conditions. This paper reports the calibration and validation testing of the PROMIS Self-Efficacy for Managing Chronic Conditions measures. METHODS: PROMIS Self-Efficacy for Managing Chronic Conditions item banks comprise five domains, Self-Efficacy for Managing: Daily Activities, Symptoms, Medications and Treatments, Emotions, and Social Interactions...
February 26, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28237318/strokes-are-possible-complications-of-cannabinoids-use
#13
REVIEW
Valérie Wolff, Emilie Jouanjus
It is critically important to identify all factors that may play a role in the recent increase of the incidence of stroke among the young population. Considering the worldwide use of cannabinoids (cannabis and synthetic cannabinoids), the recent legalization of their consumption in some countries, and their supposed involvement in cardiovascular events, we evaluated their role in the occurrence of neurovascular complications among the young. Ninety-eight patients were described in the literature as having a cannabinoids-related stroke (85 after cannabis use and 13 after synthetic cannabinoids)...
February 23, 2017: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/28235422/crying-spells-triggered-by-thumb-index-rubbing-after-thalamic-stroke-a-case-report
#14
R Bassani, C Rosazza, L Ghirardin, V Caldiera, E Banco, C Casati, L Tesio
BACKGROUND: Pathologic crying, devoid of any emotional counterpart, is known to occur as a consequence of various brain stem, cortical hemispheric and cerebellar lesions or, quite exceptionally, of "dacrystic" epilepsy. The case reported here suggests that thalamic lesions may also cause crying spells, under the special circumstances described below. CASE PRESENTATION: After a mild left thalamic stroke a caucasian 77 years old man presented with crying spells with no emotional counterpart, triggered by thumb-index rubbing of his right hand...
February 24, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28229395/transcranial-magnetic-and-direct-current-stimulation-in-children
#15
REVIEW
Mustafa Q Hameed, Sameer C Dhamne, Roman Gersner, Harper L Kaye, Lindsay M Oberman, Alvaro Pascual-Leone, Alexander Rotenberg
Promising results in adult neurologic and psychiatric disorders are driving active research into transcranial brain stimulation techniques, particularly transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (tDCS), in childhood and adolescent syndromes. TMS has realistic utility as an experimental tool tested in a range of pediatric neuropathologies such as perinatal stroke, depression, Tourette syndrome, and autism spectrum disorder (ASD). tDCS has also been tested as a treatment for a number of pediatric neurologic conditions, including ASD, attention-deficit/hyperactivity disorder, epilepsy, and cerebral palsy...
February 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28228835/recurrent-alternate-sided-homonymous-hemianopia-due-to-mitochondrial-encephalomyopathy-with-lactic-acidosis-and-stroke-like-episodes-melas-a-case-report
#16
Kristen M Krysko, Arun N E Sundaram
Mitochondrial encephalomyopathy with lactic acidosis and stroke-like episodes (MELAS) can rarely cause alternate-sided homonymous hemianopia due to stroke-like episodes involving the occipital lobes, as reported in three previously published cases. The authors report an interesting case of a 16-year-old presenting with myoclonic epilepsy due to MELAS with the rare ND3 mitochondrial mutation T10191C, with recurrent alternate-sided homonymous hemianopia. Visual field and corresponding magnetic resonance imaging (MRI) findings are presented...
February 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/28212985/nonsteroidal-anti-inflammatory-drugs-in-clinical-and-experimental-epilepsy
#17
REVIEW
Beatrice Mihaela Radu, Florin Bogdan Epureanu, Mihai Radu, Paolo Francesco Fabene, Giuseppe Bertini
Current antiepileptic drugs have limited efficacy and provide little or no benefits in 30% of the patients. Given that a role for brain inflammation in epilepsy has been repeatedly reported in recent years, the potential of anti-inflammatory drugs should be explored in depth, as they may provide new therapeutical approaches in preventing or reducing epileptogenesis. Here, we review preclinical (both in vivo and in vitro) and clinical epilepsy studies in which nonsteroidal antiinflammatory drugs (NSAIDs), i...
February 9, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28203183/cerebral-venous-thrombosis-in-the-superior-sagittal-sinus-as-a-rare-cause-of-a-paroxysmal-kinetic-tremor
#18
Kei Murao, Shuji Arakawa, Yoshihiko Furuta, Masahiro Shijo, Tetsuro Ago, Takanari Kitazono
Cerebral venous thrombosis (CVT) has a broad spectrum of clinical presentation compared to arterial etiology. Seizure is one of the common symptoms and is more frequent than in other stroke types. Hence, transient neurological symptoms in CVT patients are usually due to epileptic seizures, while transient repetitive movement disorder is extremely rare except as a complication of epilepsy. We report a case of CVT in the superior sagittal sinus with a 1-year history of paroxysmal kinetic tremor without evident epilepsy...
September 2016: Case Reports in Neurology
https://www.readbyqxmd.com/read/28202819/-melas-mitochondrial-encephalomyopathy-lactic-acidosis-and-stroke-like-episodes
#19
Hidetomo Murakami, Kenjiro Ono
Mitochondrial disease is caused by a deficiency in the energy supply to cells due to mitochondrial dysfunction. Mitochondrial encephalomyopathy, lactic acidosis and stroke-like episodes (MELAS) is a mitochondrial disease that presents with stroke-like episodes such as acute onset of neurological deficits and characteristic imaging findings. Stroke-like episodes in MELAS have the following features: 1) neurological deficits due to localization of lesions in the brain, 2) episodes often accompany epilepsy, 3) lesions do not follow the vascular supply area, 4) lesions are more often seen in the posterior brain than in the anterior brain, 5) lesions spread to an adjacent area in the brain, and 6) neurological symptoms often disappear together with imaging findings, but later relapse...
February 2017: Brain and Nerve, Shinkei Kenkyū No Shinpo
https://www.readbyqxmd.com/read/28202284/post-stroke-epilepsy
#20
REVIEW
Tomotaka Tanaka, Masafumi Ihara
Post-stroke epilepsy (PSE) is a common complication after stroke, yet treatment options remain limited. While many physicians prescribe antiepileptic drugs (AED) for secondary prevention of PSE, it is unclear which treatments are most effective in the prevention of recurrence of symptoms, or whether such therapy is needed for primary prevention. This review discusses the current understanding of epidemiology, diagnoses, mechanisms, risk factors, and treatments of PSE.
February 12, 2017: Neurochemistry International
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