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https://www.readbyqxmd.com/read/29414405/eeg-synchronization-measures-predict-epilepsy-related-bold-fmri-fluctuations-better-than-commonly-used-univariate-metrics
#1
Rodolfo Abreu, Alberto Leal, Fernando Lopes da Silva, Patrícia Figueiredo
OBJECTIVE: We hypothesize that the hypersynchronization associated with epileptic activity is best described by EEG synchronization measures, and propose to use these as predictors of epilepsy-related BOLD fluctuations. METHODS: We computed the phase synchronization index (PSI) and global field synchronization (GFS), within two frequency bands, a broadband (1-45 Hz) and a narrower band focused on the presence of epileptic activity (3-10 Hz). The associated epileptic networks were compared with those obtained using conventional unitary regressors and two power-weighted metrics (total power and root mean square frequency), on nine simultaneous EEG-fMRI datasets from four epilepsy patients, exhibiting inter-ictal epileptiform discharges (IEDs)...
January 11, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29412775/opposing-effects-of-2-deoxy-d-glucose-on-interictal-and-ictal-like-activity-when-k-currents-and-gabaa-receptors-are-blocked-in-rat-hippocampus-in-vitro
#2
Steen Nedergaard, Mogens Andreasen
The ketogenic diet (KD), a high-fat, carbohydrate-restricted diet, is used as an alternative treatment for drug-resistant epileptic patients. Evidence suggests that compromised glucose metabolism has a significant role in the anticonvulsant action of the KD, however, it is unclear what part of the glucose metabolism that is important. The present study investigates how selective alterations in glycolysis and oxidative phosphorylation influence epileptiform activity induced by blocking K+ currents, GABAA and NMDA receptors in the hippocampal slice preparation...
February 7, 2018: Journal of Neurophysiology
https://www.readbyqxmd.com/read/29412066/alkalinity-and-external-carbon-requirements-for-denitrification-nitrification-of-coke-wastewater
#3
Eleanor Raper, Raymond Fisher, David R Anderson, Tom Stephenson, Ana Soares
The Industrial Emissions Directive (IED) requires that coke wastewater is treated to reach an effluent with <50 mg/L total nitrogen (TN). A shortage of alkalinity (3.6 mg as CaCO3/mg NH4+-N) in the wastewater limited nitrification to 45%. Various compounds were tested as a source of additional alkalinity, with optimal results being found for sodium carbonate, which enabled 95% nitrification at 300 mg/L (as CaCO3). Sodium bicarbonate led to incomplete ammonia oxidation (76%) whilst soda ash prevented nitrite oxidation...
February 7, 2018: Environmental Technology
https://www.readbyqxmd.com/read/29394439/development-of-the-caveman-human-body-model-validation-of-lower-extremity-sub-injurious-response-to-vertical-accelerative-loading
#4
Kent Butz, Chad Spurlock, Rajarshi Roy, Cameron Bell, Paul Barrett, Aaron Ward, Xudong Xiao, Allen Shirley, Colin Welch, Kevin Lister
Improving injury prediction accuracy and fidelity for mounted Warfighters has become an area of focus for the U.S. military in response to improvised explosive device (IED) use in both Iraq and Afghanistan. Although the Hybrid III anthropomorphic test device (ATD) has historically been used for crew injury analysis, it is only capable of predicting a few select skeletal injuries. The Computational Anthropomorphic Virtual Experiment Man (CAVEMAN) human body model is being developed to expand the injury analysis capability to both skeletal and soft tissues...
November 2017: Stapp Car Crash Journal
https://www.readbyqxmd.com/read/29390508/analysis-of-early-death-in-newly-diagnosed-acute-promyelocytic-leukemia-patients
#5
Fang Xu, Chunli Wang, Changxin Yin, Xuejie Jiang, Ling Jiang, Zhixiang Wang, Fanyi Meng
The aim of this study was to identify risk factors for early death (ED) in acute promyelocitic leukemia (APL) patients.Clinical records of 49 APL patients who suffered ED were divided into 4 groups: death before treatment or within the first 3 days (immediate death; iED group), death during treatment at least 3 days after commencement (ED after treatment), low/intermediate risk, and high-risk groups.White blood cell (WBC) count, high-risk cases, prothrombin time (PT) prolongation, international society on thrombosis and hemostasis (ISTH) scores (P < ...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29382740/a-plastidial-pantoate-transporter-with-a-potential-role-in-pantothenate-synthesis
#6
Lili Huang, Michal Pyc, Saleh Alseekh, Donald R McCarty, Valérie de Crécy-Lagard, Jesse F Gregory, Christopher S Henry, Alisdair R Fernie, Robert T Mullen, Andrew D Hanson
The pantothenate (vitamin B5) synthesis pathway in plants is not fully defined because the sub-cell-ular site of its ketopantoate → pantoate reduction step is unclear. However, the pathway is known to be split between cytosol, mit-o-chondria, and potentially plastids, and inferred to involve mitochondrial or plast-idial transport of ketopantoate or pantoate. No proteins that mediate these transport steps have been identified. Compar-at-ive genomic and transcriptomic analyses identified Arabidopsis thal-iana BASS1 (At1g78560) and its maize ( Zea mays ) ortholog as candidates for such a transport role...
January 30, 2018: Biochemical Journal
https://www.readbyqxmd.com/read/29377984/longer-inter-lead-electrical-delay-is-associated-with-response-to-cardiac-resynchronization-therapy-in-patients-with-presumed-optimal-left-ventricular-lead-position
#7
Anders Sommer, Mads Brix Kronborg, Bjarne Linde Nørgaard, Charlotte Stephansen, Steen Hvitfeldt Poulsen, Jens Kristensen, Christian Gerdes, Jens Cosedis Nielsen
Aims: In a randomized trial of cardiac resynchronization therapy (CRT), a presumed optimal left ventricular (LV) lead position close to the latest mechanically activated non-scarred myocardium was achieved in 98% of patients by standard implantation. We evaluated whether inter-lead electrical delay (IED) was associated with response to CRT in these patients. Methods and results: We prospectively included 160 consecutive patients undergoing CRT. Pre-implant speckle-tracking echocardiography radial strain and 99mTc myocardial perfusion imaging determined the latest mechanically activated non-scarred myocardial segment...
January 25, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29370057/analysis-of-isolated-transverse-process-fractures-sustained-during-blast-related-events
#8
Nicolas Newell, A Phillip Pearce, Edward Spurrier, Iain Gibb, Claire E Webster, Spyros D Masouros, Jonathan C Clasper
BACKGROUND: A range of devastating blast injuries have been sustained by personnel during recent conflicts. Previous studies have focused on severe injuries, including to the spine, however, no study has specifically focused on the most common spinal injury; transverse process (TP) fractures. Although their treatment usually requires limited intervention, analysis of TP fractures may help determine injury mechanisms. METHODS: Data was collected from victims with spinal fractures injured in Improvised Explosive Device (IED) attacks, from the UK's Joint Theatre Trauma Registry...
January 24, 2018: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/29353562/impaired-cognitive-plasticity-and-goal-directed-control-in-adolescent-obsessive-compulsive-disorder
#9
Julia Gottwald, Sanne de Wit, Annemieke M Apergis-Schoute, Sharon Morein-Zamir, Muzaffer Kaser, Francesca Cormack, Akeem Sule, Winifred Limmer, Anna Conway Morris, Trevor W Robbins, Barbara J Sahakian
BACKGROUND: Youths with obsessive-compulsive disorder (OCD) experience severe distress and impaired functioning at school and at home. Critical cognitive domains for daily functioning and academic success are learning, memory, cognitive flexibility and goal-directed behavioural control. Performance in these important domains among teenagers with OCD was therefore investigated in this study. METHODS: A total of 36 youths with OCD and 36 healthy comparison subjects completed two memory tasks: Pattern Recognition Memory (PRM) and Paired Associates Learning (PAL); as well as the Intra-Extra Dimensional Set Shift (IED) task to quantitatively gauge learning as well as cognitive flexibility...
January 22, 2018: Psychological Medicine
https://www.readbyqxmd.com/read/29334565/reversal-of-intestinal-failure-in-children-with-tufting-enteropathy-supported-with-parenteral-nutrition-at-home
#10
Iona Ashworth, Alexander Wilson, Samuel Aquilina, Raymond Parascandalo, Victor Mercieca, Jurgen Gerada, Sarah Macdonald, Venetia Simchowitz, Susan Hill
OBJECTIVES: To review long-term outcome of Intestinal Epithelial Dysplasia(IED)/tufting enteropathy(TE) patients treated with parenteral nutrition(PN) at home managed by an intestinal failure(IF) rehabilitation service METHODS:: Infants presenting from 1986-2010 with IF, and TE histology were retrospectively reviewed for up to 30 years. Data collected included: outcome, presentation, nutrition(parenteral/enteral), country of residence, race, EpCAM gene, growth, bone age, occupation. RESULTS: 13 patients (6 male) in Malta and the UK with TE histology were established on home PN...
January 13, 2018: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/29321970/deepied-an-epileptic-discharge-detector-for-eeg-fmri-based-on-deep-learning
#11
Yongfu Hao, Hui Ming Khoo, Nicolas von Ellenrieder, Natalja Zazubovits, Jean Gotman
Presurgical evaluation that can precisely delineate the epileptogenic zone (EZ) is one important step for successful surgical resection treatment of refractory epilepsy patients. The noninvasive EEG-fMRI recording technique combined with general linear model (GLM) analysis is considered an important tool for estimating the EZ. However, the manual marking of interictal epileptic discharges (IEDs) needed in this analysis is challenging and time-consuming because the quality of the EEG recorded inside the scanner is greatly deteriorated compared to the usual EEG obtained outside the scanner...
2018: NeuroImage: Clinical
https://www.readbyqxmd.com/read/29202381/set-shifting-and-visuospatial-organization-deficits-in-body-dysmorphic-disorder
#12
Jennifer L Greenberg, Hilary Weingarden, Lillian Reuman, Dylan Abrams, Suraj S Mothi, Sabine Wilhelm
Individuals with body dysmorphic disorder (BDD) over-attend to perceived defect(s) in their physical appearance, often becoming "stuck" obsessing about perceived flaws and engaging in rituals to hide flaws. These symptoms suggest that individuals with BDD may experience deficits in underlying neurocognitive functions, such as set-shifting and visuospatial organization. These deficits have been implicated as risk and maintenance factors in disorders with similarities to BDD but have been minimally investigated in BDD...
November 24, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/29190497/red-blood-cell-like-particles-with-the-ability-to-avoid-lung-and-spleen-accumulation-for-the-treatment-of-liver-fibrosis
#13
Koichiro Hayashi, Shota Yamada, Hikaru Hayashi, Wataru Sakamoto, Toshinobu Yogo
Micro-sized drug-carrier particles accumulate mainly in the lungs and nano-sized particles tend to accumulate in the liver and spleen. Here, we show that micro-particles designed to mimic red blood cells (RBCs) can overcome these limitations. The RBC-MPs created in this study have a unique intra-particle elasticity distribution (IED), enabling them to bend around the central axis of the RBC-like dent, enabling them to pass through pores smaller than their diameter, mechanically behaving as authentic RBCs. In contrast, spherical MPs (SPH-MPs) and RBC-MPs hardened by incorporating a siloxane network (SiO2-RBC-MPs), could not...
November 22, 2017: Biomaterials
https://www.readbyqxmd.com/read/29175154/immature-status-epilepticus-in-vitro-models-reveal-differences-in-cholinergic-control-and-hfo-properties-of-adult-ca3-interictal-discharges-in-temporal-vs-septal-hippocampus
#14
Apostolos Mikroulis, Christos Panagiotis Lisgaras, Caterina Psarropoulou
We have earlier demonstrated that a Status Epilepticus (SE) during CNS development has long lasting effects on cholinergic neurotransmission, detectable in vitro and in vivo. In this work, we aimed to localize changes in temporal (T) vs septal (S) hippocampus and to correlate adult CA3 interictal epileptiform discharge (IED) frequency changes to those of Ripples (R) and Fast Ripples (FR) of the High Frequency Oscillations (HFOs). Spontaneous IEDs were induced by bathing slices in Mg2+-free ACSF or in 4-Aminopyridine (4-AP, 50µM) and data were analyzed separately for each model...
November 23, 2017: Neuroscience
https://www.readbyqxmd.com/read/29161919/the-effects-of-adhd-on-cognitive-performance
#15
Emma Claesdotter, Matti Cervin, Sofia Åkerlund, Maria Råstam, Magnus Lindvall
BACKGROUND: Attention-deficit hyperactivity disorder (ADHD) is a common and impairing neurodevelopmental disorder. The Cambridge Neuropsychological Test Automated Battery (CANTAB) is a computerized test battery with standardized procedures and solid psychometric properties targeting multiple neuropsychological functions. AIMS: The aim of this study was to look at the effects of ADHD on cognitive performance using CANTAB expressed as a statistical interaction term in regression modeling...
November 21, 2017: Nordic Journal of Psychiatry
https://www.readbyqxmd.com/read/29143477/gastric-venous-congestion-and-bleeding-in-association-with-total-pancreatectomy
#16
Akimasa Nakao, Suguru Yamada, Tsutomu Fujii, Haruyoshi Tanaka, Kenji Oshima, Yukiko Oshima, Kiyotsugu Iede, Hironobu Kobayashi, Yasunori Kimura, Yasuhiro Kodera
BACKGROUND: Gastric venous congestion and bleeding in association with total pancreatectomy (TP) were evaluated. METHODS: Thirty-eight patients of TP were retrospectively analyzed. TP was classified as TP with distal gastrectomy (TPDG), pylorus-preserving TP (PPTP), subtotal stomach-preserving TP (SSPTP), and TP with segmental duodenectomy (TPSD). RESULTS: Portal vein or superior mesenteric vein resection and reconstruction was performed in 24 patients (62...
November 16, 2017: Journal of Hepato-biliary-pancreatic Sciences
https://www.readbyqxmd.com/read/29124726/the-relation-between-cortisol-and-functional-connectivity-in-people-with-and-without-stress-sensitive-epilepsy
#17
Jonas M den Heijer, Willem M Otte, Eric van Diessen, Jolien S van Campen, E Lorraine Hompe, Floor E Jansen, Marian Joels, Kees P J Braun, Josemir W Sander, Maeike Zijlmans
OBJECTIVE: The most common reported seizure-precipitant is stress. We recently showed a biologic basis for stress sensitivity of seizures: cortisol levels in people with stress-sensitive epilepsy correlated with focal interictal epileptiform discharges (IEDs) on electroencephalography (EEG). Here we aimed to determine whether the effect of cortisol on the epileptic brain is global or focal, and whether cortisol affects all brains or just those of stress-sensitive people. Because epilepsy is associated with changes in functional brain connectivity, we studied the relationship between cortisol and changes in global and focal (node-centered) functional connectivity measures for individuals with stress-sensitive and non-stress-sensitive epilepsy...
November 10, 2017: Epilepsia
https://www.readbyqxmd.com/read/29115338/construction-of-tetrahydropyranoquinoline-derivatives-via-an-asymmetric-organocatalytic-aza-michael-ied-had-cascade-reaction
#18
Lu Dai, Yuxuan Hou, Lvye Zhang, Zhangtao Chen, Xiaofei Zeng, Guofu Zhong
Chiral functionalized tetrahydroquinolines and pyranoquinolines with multiple stereogenic centres have emerged as attractive structures for derivatizing bioactive complex molecules. Herein, we develop a novel, facile organocatalytic asymmetric aza-Michael-IED/HAD cascade reaction of (E)-ethyl 4-(2-(4-methylphenylsulfon amido)phenyl)-2-oxobut-3-enoate and enals. This method enables a convenient, powerful, and atom-economical access to various desired tetrahydropyranoquinoline derivatives with control of four stereogenic centres in good yields (up to 88%) with excellent diastereo- and enantioselectivities (up to >99 : 1 dr and >99% ee, respectively)...
November 22, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/29108660/usefulness-of-electroencephalography-for-the-management-of-epilepsy-in-emergency-departments
#19
A Viloria Alebesque, A López Bravo, E Bellosta Diago, S Santos Lasaosa, J A Mauri Llerda
INTRODUCTION: Electroencephalography (EEG) is an essential diagnostic tool in epilepsy. Its use in emergency departments (ED) is usually restricted to the diagnosis and management of non-convulsive status epilepticus (NCSE). However, EDs may also benefit from EEG in the context of other situations in epilepsy. METHODS: We conducted a retrospective observational study using the clinical histories of patients treated at our hospital's ED for epileptic seizures and suspicion of NCSE and undergoing EEG studies in 2015 and 2016...
November 3, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/29106553/genome-wide-dna-methylation-changes-associated-with-intermittent-explosive-disorder-a-gene-based-functional-enrichment-analysis
#20
Janitza L Montalvo-Ortiz, Huiping Zhang, Chao Chen, Chunyu Liu, Emil F Coccaro
Background: Intermittent explosive disorder (IED) is defined as a recurrent, problematic, and impulsive aggression that affects 3-4% of the U.S. population. While behavioral genetic studies report a substantial degree of genetic influence on aggression and impulsivity, epigenetic mechanisms underlying aggression and IED is not well known. Methods: The sample included 44 subjects (22 with a DSM-5 diagnosis of IED and 22 comparable subjects without IED). Peripheral blood DNA methylome was profiled using the Illumina Infinium HumanMethylation450 Beadchip...
November 2, 2017: International Journal of Neuropsychopharmacology
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