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https://www.readbyqxmd.com/read/29043527/na4mn9o18-carbon-nanotube-composite-as-a-high-electrochemical-performance-material-for-aqueous-sodium-ion-batteries
#1
Fuxing Yin, Zhengjun Liu, Shuang Yang, Zhenzhen Shan, Yan Zhao, Yuting Feng, Chengwei Zhang, Zhumabay Bakenov
The aqueous sodium-ion battery (ASIB) is one of the promising new energy storage systems owing to the abundant resources of sodium as well as efficiency and safety of electrolyte. Herein, we report an ASIB system with Na4Mn9O18/carbon nanotube (NMO/CNT) as cathode, metal Zn as anode and a novel Na(+)/Zn(2+) mixed ion as electrolyte. The NMO/CNT with microspherical structure is prepared by a simple spray-drying method. The prepared battery delivers a high reversible specific capacity and stable cyclability. Furthermore, the battery displays a stable reversible discharge capacity of 53...
October 17, 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/29030418/short-delay-to-initiate-plasma-exchange-is-the-strongest-predictor-of-outcome-in-severe-attacks-of-nmo-spectrum-disorders
#2
Mickael Bonnan, Rudy Valentino, Stéphane Debeugny, Harold Merle, Jean-Louis Fergé, Hossein Mehdaoui, Philippe Cabre
INTRODUCTION: Severe attacks of neuromyelitis optica spectrum disorder (NMO-SD) are improved by plasma exchange (PLEX) given as an adjunctive therapy. Initial studies failed to demonstrate a delay of PLEX treatment influenced clinical outcome; however PLEX was always used late. We examine the clinical consequences of delay in PLEX initiation on severe optic neuritis and spinal cord attacks in NMO-SD. METHODS: All of our patients who suffered attacks of NMO-SD, treated in our centre by PLEX, were retrospectively considered for inclusion...
October 13, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29025172/-anti-myelin-oligodendrocyte-glycoprotein-antibodies-in-paediatric-patients-with-optic-neuritis
#3
Helmut Tegetmeyer, Andreas Merkenschlager
Background Myelin oligodendrocyte glycoprotein (MOG) is located on the surface of oligodendrocytes and myelin in the central nervous system. MOG-IgG is associated with acute disseminated encephalomyelitis (ADEM), relapsing and bilateral optic neuritis (NNO), and transverse myelitis (TM) in both paediatric and adult patients. The combination of NNO and TM or other inflammatory brain lesions is a typical feature of neuromyelitis optica spectrum disorders (NMO-SD) which are associated with specific pathogenic autoantibodies against the water channel aquaporin-4 (AQP4-IgG)...
October 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28991690/neuromyelitis-optica-spectrum-disorders-with-antibodies-to-myelin-oligodendrocyte-glycoprotein-or-aquaporin-4-clinical-and-paraclinical-characteristics-in-algerian-patients
#4
Melissa Bouzar, Smail Daoudi, Samira Hattab, Amel A Bouzar, Kumaran Deiva, Brigitte Wildemann, Markus Reindl, Sven Jarius
BACKGROUND: Neuromyelitis optica (NMO) is a severe autoimmune inflammatory disorder of the central nervous system. NMO and its abortive forms are referred to as NMO spectrum disorders (NMOSD). NMOSD are mostly associated with antibodies to aquaporin-4 (AQP4-IgG). However, recent studies have demonstrated antibodies to myelin oligodendrocyte glycoprotein (MOG-IgG) in a subset of patients. Data on NMOSD in North Africa are sparse. OBJECTIVE: To describe the frequency of MOG-IgG and AQP4-IgG among patients with optic neuritis (ON) and/or myelitis in Algeria as well as the clinical and paraclinical features associated with these antibodies...
October 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28987668/abnormal-brain-function-in-neuromyelitis-optica-a-fmri-investigation-of-mpasat
#5
Fei Wang, Yaou Liu, Jianjun Li, Matthew Sondag, Meng Law, Chi-Shing Zee, Huiqing Dong, Kuncheng Li
PURPOSE: Cognitive impairment with the Neuromyelitis Optica (NMO) patients is debated. The present study is to study patterns of brain activation in NMO patients during a pair of task-related fMRI. MATERIALS AND METHODS: We studied 20 patients with NMO and 20 control subjects matched for age, gender, education and handedness. All patients with NMO met the 2006 Wingerchuk diagnostic criteria. The fMRI paradigm included an auditory attention monitoring task and a modified version of the Paced Auditory Serial Addition Task (mPASAT)...
October 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28987175/inflammatory-demyelinating-diseases-of-the-central-nervous-system
#6
Romana Höftberger, Hans Lassmann
Inflammatory demyelinating diseases are a heterogeneous group of disorders, which occur against the background of an acute or chronic inflammatory process. The pathologic hallmark of multiple sclerosis (MS) is the presence of focal demyelinated lesions with partial axonal preservation and reactive astrogliosis. Demyelinated plaques are present in the white as well as gray matter, such as the cerebral or cerebellar cortex and brainstem nuclei. Activity of the disease process is reflected by the presence of lesions with ongoing myelin destruction...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28986408/prevalence-and-clinical-features-of-neuromyelitis-optica-spectrum-disorders-in-northern-japan
#7
Hideki Houzen, Kimito Kondo, Masaaki Niino, Kazuhiro Horiuchi, Toshiyuki Takahashi, Ichiro Nakashima, Keiko Tanaka
OBJECTIVE: To clarify the prevalence and clinical characteristics of neuromyelitis optica spectrum disorders (NMOSD) in Japan and compare them with those in other ethnic populations. METHODS: Data processing sheets were sent to all related institutions in northern Japan and were collected from April to May 2016. Prevalence was determined on March 31, 2016, using the 2015 International Panel for NMO Diagnosis criteria. RESULTS: The crude prevalence was 4...
October 6, 2017: Neurology
https://www.readbyqxmd.com/read/28979797/epidemiology-of-neuromyelitis-optica-in-latin-america
#8
REVIEW
M P Alvarenga, Sergio Schimidt, Rm Papais Alvarenga
A major development over the past two decades was the recognition of recurrent neuromyelitis optica (NMO) as a particular central nervous system disorder different from multiple sclerosis (MS). Here we reviewed the epidemiology of NMO in Latin America (LATAM). A predominance of a mixed population is found in this region. Recurrent NMO in black women was described in the Caribbean Islands and in Rio de Janeiro. The prevalence of NMO in LATAM varied from 0.37/100,000 (Volta Redonda city) to 4.2/100,000 inhabitants (Caribbean Islands)...
July 2017: Multiple Sclerosis Journal—Experimental, Translational and Clinical
https://www.readbyqxmd.com/read/28974747/annexin-enriched-osteoblast-derived-vesicles-act-as-an-extracellular-site-of-mineral-nucleation-within-developing-stem-cell-cultures
#9
O G Davies, S C Cox, R L Williams, D Tsaroucha, R M Dorrepaal, M P Lewis, L M Grover
The application of extracellular vesicles (EVs) as natural delivery vehicles capable of enhancing tissue regeneration could represent an exciting new phase in medicine. We sought to define the capacity of EVs derived from mineralising osteoblasts (MO-EVs) to induce mineralisation in mesenchymal stem cell (MSC) cultures and delineate the underlying biochemical mechanisms involved. Strikingly, we show that the addition of MO-EVs to MSC cultures significantly (P < 0.05) enhanced the expression of alkaline phosphatase, as well as the rate and volume of mineralisation beyond the current gold-standard, BMP-2...
October 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28974024/characterization-of-the-ornithine-hydroxylation-step-in-albachelin-biosynthesis
#10
Kendra Bufkin, Pablo Sobrado
N-Hydroxylating monooxygenases (NMOs) are involved in siderophore biosynthesis. Siderophores are high affinity iron chelators composed of catechol and hydroxamate functional groups that are synthesized and secreted by microorganisms and plants. Recently, a new siderophore named albachelin was isolated from a culture of Amycolatopsis alba growing under iron-limiting conditions. This work focuses on the expression, purification, and characterization of the NMO, abachelin monooxygenase (AMO) from A. alba. This enzyme was purified and characterized in its holo (FAD-bound) and apo (FAD-free) forms...
October 1, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28970675/role-of-low-plasma-volume-treatment-on-clinical-efficacy-of-plasmapheresis-in-neuromyelitis-optica
#11
Akshay Batra, Sundar Periyavan
BACKGROUND: Neuromyelitis optica (NMO) is an autoimmune demyelinating disease preferentially targeting the optic nerves and spinal cord. Plasmapheresis (PP) is an effective adjunct therapy in severe NMO attacks. The recommended minimum plasma volume to be treated per session of PP is equivalent to total plasma volume (TPV) of the patient. AIM: To study the effect of lower plasma volume treated in patients with NMO on clinical efficacy of plasmapheresis in comparison to minimum recommended volume...
July 2017: Asian Journal of Transfusion Science
https://www.readbyqxmd.com/read/28955334/the-role-of-brain-reactive-autoantibodies-in-brain-pathology-and-cognitive-impairment
#12
REVIEW
Simone Mader, Lior Brimberg, Betty Diamond
Antibodies to different brain proteins have been recently found to be associated with an increasing number of different autoimmune diseases. They need to penetrate the blood-brain barrier (BBB) in order to bind antigens within the central nervous system (CNS). They can target either neuronal or non-neuronal antigen and result in damage either by themselves or in synergy with other inflammatory mediators. Antibodies can lead to acute brain pathology, which may be reversible; alternatively, they may trigger irreversible damage that persists even though the antibodies are no longer present...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28951344/clinical-utility-of-serum-25-hydroxyvitamin-d-in-the-diagnosis-of-insulin-resistance-and-estimation-of-optimal-25-hydroxyvitamin-d-in-u-s-adults
#13
Banaz Al-Khalidi, Michael A Rotondi, Samantha M Kimball, Chris I Ardern
AIMS: To assess the clinical utility of measuring serum 25-hydroxyvitamin-D [25(OH)D] along with traditional risk factors in the diagnosis of insulin resistance (IR) and to estimate the optimal 25(OH)D level associated with normal glucose and insulin homeostasis. METHODS: A cross-sectional analysis of 6,868 adults aged ≥ 20 years without diagnosed diabetes in the National Health and Nutrition Examination Survey, with available standardized 25(OH)D data (2001-2010)...
September 23, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28941756/analysis-of-brain-and-spinal-cord-lesions-to-occult-brain-damage-in-seropositive-and-seronegative-neuromyelitis-optica
#14
Jie Sun, Xianting Sun, Ningnannan Zhang, Qiuhui Wang, Huanhuan Cai, Yuan Qi, Ting Li, Wen Qin, Chunshui Yu
OBJECTIVES: According to aquaporin-4 antibody (AQP4-Ab), neuromyelitis optica (NMO) can be divided into seropositive and seronegative subgroups. The purpose of this study was to a) compare the distribution of spinal cord and brain magnetic resonance imaging (MRI) lesions between seropositive and seronegative NMO patients; b) explore occult brain damage in seropositive and seronegative NMO patients; and c) explore the contribution of visible lesions to occult grey and white matter damage in seropositive and seronegative NMO patients...
September 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28929473/-comparison-of-neuromyelitis-optica-spectra-according-to-aqp4-antibody-serostatus-in-a-mexican-referral-centre
#15
E Antonio-Luna, G I Acosta-Castillo, J F Ortiz-Maldonado, A Estrada-Galindo, T Corona, J Flores
INTRODUCTION: Recent studies report that patients with neuromyelitis optica (NMO) or seropositive NMO spectra disorders display clinical characteristics that are different from those of patients who are seropositive for the aquaporin-4 (AQP4) antibody. AIM: To analyse the clinical and paraclinical characteristics of patients with NMO according to their serum AQP4 status. PATIENTS AND METHODS: We conducted a retrospective study of 100 patients with NMO who fulfilled the Wingerchuk criteria: 70 were positive for the AQP4 antibody and 30 were seronegative...
October 1, 2017: Revista de Neurologia
https://www.readbyqxmd.com/read/28914523/aqueous-processing-of-na0-44mno2-cathode-material-for-the-development-of-greener-na-ion-batteries
#16
Valentina Dall'Asta, Daniel Buchholz, Luciana Gomes Chagas, Xinwei Dou, Chiara Ferrara, Eliana Quartarone, Cristina Tealdi, Stefano Passerini
The implementation of aqueous electrode processing of cathode materials is a key for the development of greener Na-ion batteries. Herein, the development and optimization of the aqueous electrode processing for the ecofriendly Na0.44MnO2 (NMO) cathode material, employing carboxymethyl cellulose (CMC) as binder, are reported for the first time. The characterization of such an electrode reveals that the performances are strongly affected by the employed electrolyte solution, especially, the sodium salt and the use of electrolyte's additives...
October 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28910968/efficiency-of-antibody-therapy-in-demyelinating-diseases
#17
Tetsuya Akaishi, Ichiro Nakashima
Monoclonal antibody therapy is a new treatment strategy for many types of diseases including cancers and autoimmune diseases, realizing a high efficacy and tolerability. In multiple sclerosis (MS) and neuromyelitis optica (NMO) spectrum disorders, several monoclonal antibodies have been suggested to decrease the incidence of clinical relapse and the disease activity. In MS, anti-α4 integrin (natalizumab), anti-CD52 (alemtuzumab), anti-CD25 (daclizumab) and anti-CD20 (ocrelizumab) have been shown to effectively reduce the relapses in randomized controlled trials and have been approved by the Food and Drug Administration...
July 1, 2017: International Immunology
https://www.readbyqxmd.com/read/28904454/rituximab-in-neuromyelitis-optica-spectrum-disorders-our-experience
#18
Jui Dilip Jade, Srishti Bansi, Bhim Singhal
BACKGROUND: Neuromyelitis optica (NMO) is an inflammatory demyelinating central nervous system disease, with recurrent attacks of severe bilateral optic neuritis and longitudinally extensive transverse myelitis. Aggressive immunosuppression is essential to prevent clinical relapses and permanent disability. Rituximab, a monoclonal antibody to CD20, has been found effective in several reports and small uncontrolled studies. There is a paucity of data regarding its use in Indian patients...
July 2017: Annals of Indian Academy of Neurology
https://www.readbyqxmd.com/read/28901295/fabrication-of-water-dispersible-single-walled-carbon-nanotube-powder-using-n-methylmorpholine-n-oxide
#19
Hyejun Choi, Jong Seok Woo, Joong Tark Han, Soo-Young Park
Dispersion of nanocarbon materials in liquid media is one of prerequisites for practical applications via solution processing such as spraying, printing, spinning, etc. Here we report that water-dispersible single-walled carbon nanotubes (SWCNTs) were prepared through successive treatments with chlorosulfuric acid (CSA)/H2O2 and N-methylmorpholine N-oxide (NMO) monohydrate. The powder of the CSA/H2O2- and NMO-treated SWCNTs (N-SWCNTs) could be readily redispersed in water in concentrations as high as 1 g L-1 without requiring a dispersant...
September 13, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28879451/prognostic-factors-and-disease-course-in-aquaporin-4-antibody-positive-chinese-patients-with-acute-optic-neuritis
#20
Hao Kang, Tingjun Chen, Hongyang Li, Quangang Xu, Shanshan Cao, Shihui Wei
The objective is to assess the frequency of AQP4-Ab in Chinese patients with optic neuritis (ON) and to investigate the prognostic implications of AQP4-Ab seropositivity in such patients. The presence of aquaporin-4 (AQP4) antibodies in human AQP4-transfected cells was determined by indirect immunofluorescence, and the diagnostic and prognostic relevance of AQP4 antibodies in 215 Chinese patients with optic neuritis was evaluated. The patients were enrolled from the Chinese People's Liberation Army General Hospital (PLAGH) and followed up to 1-228 months...
September 6, 2017: Journal of Neurology
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