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Encephalomyelitis

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https://www.readbyqxmd.com/read/29140922/fingolimod-reduces-neuropathic-pain-behaviors-in-a-mouse-model-of-multiple-sclerosis-by-a-sphingosine-1-phosphate-receptor-1-dependent-inhibition-of-central-sensitization-in-the-dorsal-horn
#1
Suzanne Doolen, Tommaso Iannitti, Benjamin C Shaw, Carolyn M Grachen, Renee R Donahue, Bradley K Taylor
Multiple sclerosis (MS) is an autoimmune-inflammatory neurodegenerative disease that is often accompanied by a debilitating neuropathic pain. Disease-modifying agents slow the progression of MS and prevent relapses, yet it remains unclear if they yield analgesia. We explored the analgesic potential of fingolimod (FTY720), an agonist/functional antagonist at the sphingosine-1-phosphate receptor 1 (S1PR1), because it reduces hyperalgesia in models of peripheral inflammatory and neuropathic pain. We used a myelin oligodendrocyte glycoprotein 35-55 (MOG35-55) mouse model of experimental autoimmune encephalomyelitis (EAE), modified to avoid frank paralysis and thus allow for assessment of withdrawal behaviors to somatosensory stimuli...
November 13, 2017: Pain
https://www.readbyqxmd.com/read/29140242/guillain-barr%C3%A3-syndrome-acute-disseminated-encephalomyelitis-and-encephalitis-associated-with-zika-virus-infection-in-brazil-detection-of-viral-rna-and-isolation-of-virus-during-late-infection
#2
Maria Lucia Brito Ferreira, Carlos Alexandre Antunes de Brito, Álvaro José Porto Moreira, Maria Íris de Morais Machado, Adélia Henriques-Souza, Marli Tenório Cordeiro, Ernesto Torres de Azevedo Marques, Lindomar José Pena
Zika virus (ZIKV) emerged in Brazil in 2015, which was followed by an increase of Guillain-Barre Syndrome (GBS) cases. We report the epidemiological, clinical, and laboratory findings of the first six neurological cases associated with ZIKV in Brazil seen in a reference neurology hospital in Pernambuco, Brazil. In all cases, ZIKV was detected in serum and/or cerebrospinal fluid (CSF) samples. In this case series, four cases were defined as GBS, one as acute disseminated encephalomyelitis (ADEM) and the other as encephalitis...
November 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29137920/serum-anti-aquaporin-4-antibody-positive-neuromyelitis-optica-spectrum-disorder-presenting-as-acute-eosinophilic-encephalomyelitis
#3
Toyoteru Muroishi, Kenji Sakai, Daisuke Yanase, Yoshihisa Ikeda, Tomohiko Machiya, Yuko Kato-Motozaki, Miharu Samuraki, Masahito Yamada
We report the case of a 57-year-old man with neuromyelitis optica spectrum disorder (NMOSD) presenting as acute eosinophilic encephalomyelitis. Magnetic resonance imaging revealed central nervous system lesions typical of NMOSD and anti-aquaporin-4 antibodies in the serum were identified; however, eosinophilia was evident in the cerebrospinal fluid (CSF) at the early stage of the disease. The number of eosinophils in the CSF decreased subsequently. Although activation of eosinophils is known to be an important factor in the development of NMOSD lesions, prominent eosinophilia in the CSF at the early stage of the disease has never been reported in patients with NMOSD...
November 11, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29136091/clinical-presentation-and-prognosis-in-mog-antibody-disease-a-uk-study
#4
Maciej Jurynczyk, Silvia Messina, Mark R Woodhall, Naheed Raza, Rosie Everett, Adriana Roca-Fernandez, George Tackley, Shahd Hamid, Angela Sheard, Gavin Reynolds, Saleel Chandratre, Cheryl Hemingway, Anu Jacob, Angela Vincent, M Isabel Leite, Patrick Waters, Jacqueline Palace
A condition associated with an autoantibody against MOG has been recently recognized as a new inflammatory disease of the central nervous system, but the disease course and disability outcomes are largely unknown. In this study we investigated clinical characteristics of MOG-antibody disease on a large cohort of patients from the UK. We obtained demographic and clinical data on 252 UK patients positive for serum immunoglobulin G1 MOG antibodies as tested by the Autoimmune Neurology Group in Oxford. Disability outcomes and disease course were analysed in more detail in a cohort followed in the Neuromyelitis Optica Oxford Service (n = 75), and this included an incident cohort who were diagnosed at disease onset (n = 44)...
November 9, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29136024/severe-oxidative-stress-in-an-acute-inflammatory-demyelinating-model-in-the-rhesus-monkey
#5
Jordon Dunham, Reinofke van de Vis, Jan Bauer, Jacqueline Wubben, Nikki van Driel, Jon D Laman, Bert A 't Hart, Yolanda S Kap
Oxidative stress is increasingly implicated as a co-factor of tissue injury in inflammatory/demyelinating disorders of the central nervous system (CNS), such as multiple sclerosis (MS). While rodent experimental autoimmune encephalomyelitis (EAE) models diverge from human demyelinating disorders with respect to limited oxidative injury, we observed that in a non-human primate (NHP) model for MS, namely EAE in the common marmoset, key pathological features of the disease were recapitulated, including oxidative tissue injury...
2017: PloS One
https://www.readbyqxmd.com/read/29133321/can-physical-assessment-techniques-aid-diagnosis-in-people-with-chronic-fatigue-syndrome-myalgic-encephalomyelitis-a-diagnostic-accuracy-study
#6
Lucy Hives, Alice Bradley, Jim Richards, Chris Sutton, James Selfe, Bhaskar Basu, Kerry Maguire, Gail Sumner, Tarek Gaber, Annice Mukherjee, Raymond N Perrin
OBJECTIVE: To assess five physical signs to see whether they can assist in the screening of patients with chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) and potentially lead to quicker treatment. METHODS: This was a diagnostic accuracy study with inter-rater agreement assessment. Participants recruited from two National Health Service hospitals, local CFS/ME support groups and the community were examined by three practitioners on the same day in a randomised order...
November 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/29132838/therapeutic-effects-of-diosgenin-in-experimental-autoimmune-encephalomyelitis
#7
Weili Liu, Mei Zhu, Zhongwang Yu, Dou Yin, Fengfeng Lu, Yingyan Pu, Chao Zhao, Cheng He, Li Cao
Multiple sclerosis (MS) is a chronic autoimmune demyelinating disease of the central nervous system. Currently, there is no drug available to cure this kind of disease. Diosgenin is a plant-derived steroid saponin. A previous study in our lab revealed that diosgenin can promote oligodendrocyte progenitor cell differentiation and accelerate remyelination. In the present study, we found that diosgenin dose-dependently alleviated the progression of experimental autoimmune encephalomyelitis with reduced central nervous system inflammation and demyelination...
October 31, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29131010/blockade-of-experimental-multiple-sclerosis-by-inhibition-of-the-acid-sphingomyelinase-ceramide-system
#8
Katrin Anne Becker, Ramona Halmer, Laura Davies, Brian D Henry, Regan Ziobro-Henry, Yann Decker, Yang Liu, Erich Gulbins, Klaus Fassbender, Silke Walter
BACKGROUND: Multiple sclerosis (MS) is a severe and common autoimmune disorder of the central nervous system. Despite the availability of several novel treatment options, the disease is still poorly controlled, since the pathophysiological mechanisms are not fully understood. METHODS: We tested the role of the acid sphingomyelinase/ceramide system in a model of MS, i.e. experimental autoimmune encephalomyelitis (EAE). Mice were immunized with myelin-oligodendrocyte glycoprotein and the development of the disease was analyzed by histology, immunological tests and clinical assessment in wildtype and acid sphingomyelinase (Asm)-deficient mice...
November 6, 2017: Neuro-Signals
https://www.readbyqxmd.com/read/29128575/strain-specificities-in-age-related-changes-in-mechanisms-promoting-and-controlling-rat-spinal-cord-damage-in-experimental-autoimmune-encephalomyelitis
#9
Zorica Stojić-Vukanić, Ivan Pilipović, Jasmina Djikić, Ivana Vujnović, Mirjana Nacka-Aleksić, Biljana Bufan, Nevena Arsenović-Ranin, Duško Kosec, Gordana Leposavić
The study investigated strain specificities in age-related differences in CD8+ T cell- and microglial cell-mediated mechanisms implicated in induction/perpetuation and/or control of neuroinflammation in experimental autoimmune encephalomyelitis (EAE) in Albino Oxford (AO) and Dark Agouti (DA) rats exhibiting age-related changes in the susceptibility to EAE in the opposite direction (increase in relatively resistant AO rats vs decrease in DA rats). In the inductive phase of EAE, the greater number of fully differentiated effector CD8+ T lymphocytes was found in draining lymph nodes (dLNs) from aged rats of both strains than in strain-matched young rats, but this was particularly prominent in AO rats, which exhibited milder EAE of prolonged duration compared with their DA counterparts...
November 8, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/29127843/ifn-%C3%AE-regulates-th17-differentiation-partly-through-the-inhibition-of-osteopontin-in-experimental-autoimmune-encephalomyelitis
#10
Qing Zhao, Wenjing Cheng, Yebin Xi, Zheyi Cao, Yunzhi Xu, Ting Wu, Chengzhen Li, Xiaoyin Niu, Guangjie Chen
Multiple sclerosis (MS) and the corresponding animal model, experimental autoimmune encephalomyelitis (EAE), are chronic neuroinflammatory autoimmune diseases. Increased activation of CD4+T cells, especially the Th1 and Th17 subsets, is thought to play a causal role in this disease. IFN-β is widely used in the treatment of MS and is found to decrease IL-17 and OPN production in MS patients and EAE mice. However, a definitive molecular mechanism has not yet been fully elucidated. In this study, we investigated the immunomodulatory effect of IFN-β on the EAE model...
November 7, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/29123469/suppression-of-inflammatory-demyelinaton-and-axon-degeneration-through-inhibiting-kv3-channels
#11
Peter Jukkola, Yuanzheng Gu, Amy E Lovett-Racke, Chen Gu
The development of neuroprotective and repair strategies for treating progressive multiple sclerosis (MS) requires new insights into axonal injury. 4-aminopyridine (4-AP), a blocker of voltage-gated K(+) (Kv) channels, is used in symptomatic treatment of progressive MS, but the underlying mechanism remains unclear. Here we report that deleting Kv3.1-the channel with the highest 4-AP sensitivity-reduces clinical signs in experimental autoimmune encephalomyelitis (EAE), a mouse model for MS. In Kv3.1 knockout (KO) mice, EAE lesions in sensory and motor tracts of spinal cord were markedly reduced, and radial astroglia were activated with increased expression of brain derived neurotrophic factor (BDNF)...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/29121970/endothelial-%C3%AE-6%C3%AE-4-integrin-protects-during-experimental-autoimmune-encephalomyelitis-induced-neuroinflammation-by-maintaining-vascular-integrity-and-tight-junction-protein-expression
#12
Jennifer V Welser, Sebok K Halder, Ravi Kant, Amin Boroujerdi, Richard Milner
BACKGROUND: Extracellular matrix (ECM) proteins play critical functions regulating vascular formation and function. Laminin is a major component of the vascular basal lamina, and transgenic mice deficient in astrocyte or pericyte laminin show defective blood-brain barrier (BBB) integrity, indicating an important instructive role for laminin in cerebral blood vessels. As previous work shows that in the normal brain, vascular expression of the laminin receptor α6β4 integrin is predominantly restricted to arterioles, but induced on all vessels during neuroinflammation, it is important to define the role of this integrin in the maintenance of BBB integrity...
November 9, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/29119385/intestinal-permeabiliy-in-relapsing-remitting-multiple-sclerosis
#13
REVIEW
M C Buscarinu, S Romano, R Mechelli, R Pizzolato Umeton, M Ferraldeschi, A Fornasiero, R Reniè, B Cerasoli, E Morena, C Romano, N D Loizzo, R Umeton, M Salvetti, G Ristori
Changes of intestinal permeability (IP) have been extensively investigated in inflammatory bowel diseases (IBD) and celiac disease (CD), underpinned by a known unbalance between microbiota, IP and immune responses in the gut. Recently the influence of IP on brain function has greatly been appreciated. Previous works showed an increased IP that preceded experimental autoimmune encephalomyelitis development and worsened during disease with disruption of TJ. Moreover, studying co-morbidity between Crohn's disease and MS, a report described increased IP in a minority of cases with MS...
November 8, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/29118054/vitamin-d-status-in-chronic-fatigue-syndrome-myalgic-encephalomyelitis-a-cohort-study-from-the-north-west-of-england
#14
Kate E Earl, Giorgos K Sakellariou, Melanie Sinclair, Manuel Fenech, Fiona Croden, Daniel J Owens, Jonathan Tang, Alastair Miller, Clare Lawton, Louise Dye, Graeme L Close, William D Fraser, Anne McArdle, Michael B J Beadsworth
OBJECTIVE: Severe vitamin D deficiency is a recognised cause of skeletal muscle fatigue and myopathy. The aim of this study was to examine whether chronic fatigue syndrome/myalgic encephalomyelitis (CFS/ME) is associated with altered circulating vitamin D metabolites. DESIGN: Cohort study. SETTING: UK university hospital, recruiting from April 2014 to April 2015. PARTICIPANTS: Ninety-two patients with CFS/ME and 94 age-matched healthy controls (HCs)...
November 8, 2017: BMJ Open
https://www.readbyqxmd.com/read/29114087/the-cooling-compound-icilin-attenuates-autoimmune-neuroinflammation-through-modulation-of-the-t-cell-response
#15
Benjamin W Ewanchuk, Euan R O Allan, Amy L Warren, Rithwik Ramachandran, Robin M Yates
The synthetic supercooling drug, icilin, and its primary receptor target, the cation channel transient receptor potential (TRP) melastatin-8 (TRPM8), have been described as potent negative regulators of inflammation in the colon. The aim of this study was to determine whether the anti-inflammatory action of icilin could potentially be used to treat autoimmune neuroinflammatory disorders, such as multiple sclerosis (MS). During experimental autoimmune encephalomyelitis (EAE)-a CD4(+) T cell-driven murine model of MS-we found that both wild-type (WT) and TRPM8-deficient EAE mice were protected from disease progression during icilin treatment, as evidenced by delays in clinical onset and reductions in neuroinflammation...
November 7, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29111742/increased-post-translational-lysine-acetylation-of-myelin-basic-protein-is-associated-with-peak-neurological-disability-in-a-mouse-experimental-autoimmune-encephalomyelitis-model-of-multiple-sclerosis
#16
Ryan Lillico, Ting Zhou, Tina Khorshid Ahmad, Nicholas Stesco, Kiana Gozda, Jessica Truong, Jiming Kong, Ted M Lakowski, Michael Namaka
Citrullination of arginine residues is a post-translational modification (PTM) found on myelin basic protein (MBP), which neutralizes MBPs positive charge, and is implicated in myelin damage and multiple sclerosis (MS). Here we identify lysine acetylation as another neutralizing PTM to MBP that may be involved in myelin damage. We quantify changes in lysine and arginine PTMs on MBP derived from mice induced with an experimental autoimmune encephalomyelitis (EAE) model of MS using liquid chromatography tandem mass spectrometry...
November 7, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/29109139/clinical-reasoning-a-patient-with-a-history-of-encephalomyelitis-and-recurrent-optic-neuritis
#17
Josef Maxwell Gutman, Michael Levy, Steven Galetta, Ilya Kister
No abstract text is available yet for this article.
November 7, 2017: Neurology
https://www.readbyqxmd.com/read/29108750/new-spectrum-of-the-neurologic-consequences-of-zika
#18
EDITORIAL
Marco T Medina, Marco Medina-Montoya
Zika virus infection represents a new neuropathological agent with association to a wide spectrum of neurological complications: a) Congenital Zika Syndrome by affecting the neural stem cells of the human fetal brain; b) Guillain-Barré Syndrome by an autoimmune response against peripheral myelin and/or axonal components or probable direct inflammatory reaction; c) Encephalitis/meningoencephalitis and myelitis by a direct viral inflammatory process on the central nervous system; d) Sensory neuropathy by infecting directly the peripheral neurons and causing substantial cell death and pathogenic transcriptional dysregulation; e) Acute Disseminated Encephalomyelitis and optic neuropathy; f) Seizures and Epilepsy and g) childhood arterial ischemic stroke by probable inflammatory reaction and endothelial injury...
November 1, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29107957/febuxostat-ameliorates-secondary-progressive-experimental-autoimmune-encephalomyelitis-by-restoring-mitochondrial-energy-production-in-a-got2-dependent-manner
#19
Josephe A Honorat, Yuji Nakatsuji, Mikito Shimizu, Makoto Kinoshita, Hisae Sumi-Akamaru, Tsutomu Sasaki, Kazushiro Takata, Toru Koda, Akiko Namba, Kazuya Yamashita, Eri Sanda, Manabu Sakaguchi, Atsushi Kumanogoh, Takashi Shirakura, Mizuho Tamura, Saburo Sakoda, Hideki Mochizuki, Tatsusada Okuno
Oxidative stress and mitochondrial dysfunction are important determinants of neurodegeneration in secondary progressive multiple sclerosis (SPMS). We previously showed that febuxostat, a xanthine oxidase inhibitor, ameliorated both relapsing-remitting and secondary progressive experimental autoimmune encephalomyelitis (EAE) by preventing neurodegeneration in mice. In this study, we investigated how febuxostat protects neuron in secondary progressive EAE. A DNA microarray analysis revealed that febuxostat treatment increased the CNS expression of several mitochondria-related genes in EAE mice, most notably including GOT2, which encodes glutamate oxaloacetate transaminase 2 (GOT2)...
2017: PloS One
https://www.readbyqxmd.com/read/29104961/a-comparison-of-case-definitions-for-myalgic-encephalomyelitis-and-chronic-fatigue-syndrome
#20
Madison Sunnquist, Leonard A Jason, Pamela Nehrke, Ellen M Goudsmit
Many professionals have described the clinical presentation of myalgic encephalomyelitis (ME), but recent efforts have focused on the development of ME criteria that can be reliably applied. The current study compared the symptoms and functioning of individuals who met the newly-developed Institute of Medicine (IOM) clinical criteria to a revised version of the London criteria for ME. While 76% of a sample diagnosed with chronic fatigue syndrome (CFS) met the IOM criteria, 44% met the revised London criteria...
2017: J Chronic Dis Manag
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