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Encephalomyelitis

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https://www.readbyqxmd.com/read/29773813/amelioration-of-experimental-autoimmune-encephalomyelitis-and-dss-induced-colitis-by-ntg-a-009-through-the-inhibition-of-th1-and-th17-cells-differentiation
#1
Suman Acharya, Maheshwor Timilshina, Liyuan Jiang, Sabita Neupane, Dong-Young Choi, Sang Won Park, Sang Yeul Lee, Byeong-Seon Jeong, Jung-Ae Kim, Tae-Gyu Nam, Jae-Hoon Chang
CD4+ T cells are the central for the mammalian adaptive immune system. Naïve CD4+ T cells mainly differentiate in to pro-inflammatory Th1, Th2 and Th17 cells upon antigenic stimulation. IFN-γ secreting Th1 cells and IL-17 secreting Th17 cells are found to play key roles in autoimmune diseases like multiple sclerosis (MS) and ulcerative colitis (UC). In this study we found NTG-A-009, 6-aminopyridin-3-ol, has great inhibitory effect on in vitro differentiation of Th1 and Th17 cells without affecting regulatory T cells...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29772739/dutch-health-council-advisory-report-on-myalgic-encephalomyelitis-and-chronic-fatigue-syndrome-taking-the-wrong-turn
#2
Frank Twisk
Recently, the Dutch Health Council published their advisory report on Myalgic Encephalomyelitis (ME)/Chronic Fatigue Syndrome (CFS) which is meant to determine the medical policy with regard to ME in the Netherlands. The Health Council briefly discusses several diagnostic criteria and proposes to use new diagnostic criteria for "ME/CFS" in research and clinical practice in the future. The advisory report then summarizes organic abnormalities observed in the last decades and concludes that "ME/CFS" is a "serious, chronic, multisystem disease"...
May 16, 2018: Diagnostics
https://www.readbyqxmd.com/read/29770505/poor-self-reported-sleep-quality-and-health-related-quality-of-life-in-patients-with-chronic-fatigue-syndrome-myalgic-encephalomyelitis
#3
Jesús Castro-Marrero, Maria C Zaragozá, Sergio González-Garcia, Luisa Aliste, Naia Sáez-Francàs, Odile Romero, Alex Ferré, Tomás Fernández de Sevilla, José Alegre
Non-restorative sleep is a hallmark symptom of chronic fatigue syndrome/myalgic encephalomyelitis. However, little is known about self-reported sleep disturbances in these subjects. This study aimed to assess the self-reported sleep quality and its impact on quality of life in a Spanish community-based chronic fatigue syndrome/myalgic encephalomyelitis cohort. A prospective cross-sectional cohort study was conducted in 1,455 Spanish chronic fatigue syndrome/myalgic encephalomyelitis patients. Sleep quality, fatigue, pain, functional capacity impairment, psychopathological status, anxiety/depression and health-related quality of life were assessed using validated subjective measures...
May 16, 2018: Journal of Sleep Research
https://www.readbyqxmd.com/read/29770137/gut-microbiota-confers-resistance-of-albino-oxford-rats-to-the-induction-of-experimental-autoimmune-encephalomyelitis
#4
Suzana Stanisavljević, Miroslav Dinić, Bojan Jevtić, Neda Đedović, Miljana Momčilović, Jelena Đokić, Nataša Golić, Marija Mostarica Stojković, Đorđe Miljković
Albino Oxford (AO) rats are extremely resistant to induction of experimental autoimmune encephalomyelitis (EAE). EAE is an animal model of multiple sclerosis, a chronic inflammatory disease of the central nervous system (CNS), with established autoimmune pathogenesis. The autoimmune response against the antigens of the CNS is initiated in the peripheral lymphoid tissues after immunization of AO rats with CNS antigens. Subsequently, limited infiltration of the CNS occurs, yet without clinical sequels. It has recently become increasingly appreciated that gut-associated lymphoid tissues (GALT) and gut microbiota play an important role in regulation and propagation of encephalitogenic immune response...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29770132/differing-outcome-of-experimental-autoimmune-encephalitis-in-macrophage-neutrophil-and-t-cell-specific-gp130-deficient-mice
#5
Kristian Holz, Marco Prinz, Stefanie M Brendecke, Alexandra Hölscher, Fengyuan Deng, Hans-Willi Mitrücker, Stefan Rose-John, Christoph Hölscher
gp130 cytokines are differentially involved in regulating the T helper (H) 17-driven pathogenesis of experimental autoimmune encephalomyelitis (EAE), the animal model of human multiple sclerosis. Interleukin (IL)-6 directly promotes the development of TH17 cells through the gp130/IL-6R complex. By contrast, IL-27 has been shown to suppress a TH17 immune response by gp130/IL-27R-alpha (α) receptor ligation. The IL-27-dependent regulation of a TH17 development could be mediated on the level of CD4 T cells. However, because IL-27 also suppresses the secretion of the TH17-driving cytokines IL-6 and IL-12/23p40 in accessory cells, TH17 immune responses may also be controlled by IL-27 on the level of macrophages and/or neutrophils...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29769726/microglial-control-of-astrocytes-in-response-to-microbial-metabolites
#6
Veit Rothhammer, Davis M Borucki, Emily C Tjon, Maisa C Takenaka, Chun-Cheih Chao, Alberto Ardura-Fabregat, Kalil Alves de Lima, Cristina Gutiérrez-Vázquez, Patrick Hewson, Ori Staszewski, Manon Blain, Luke Healy, Tradite Neziraj, Matilde Borio, Michael Wheeler, Loic Lionel Dragin, David A Laplaud, Jack Antel, Jorge Ivan Alvarez, Marco Prinz, Francisco J Quintana
Microglia and astrocytes modulate inflammation and neurodegeneration in the central nervous system (CNS)1-3 . Microglia modulate pro-inflammatory and neurotoxic activities in astrocytes, but the mechanisms involved are not completely understood4,5 . Here we report that TGFα and VEGF-B produced by microglia regulate the pathogenic activities of astrocytes in the experimental autoimmune encephalomyelitis (EAE) mouse model of multiple sclerosis. Microglia-derived TGFα acts via the ErbB1 receptor in astrocytes to limit their pathogenic activities and EAE development...
May 16, 2018: Nature
https://www.readbyqxmd.com/read/29767299/assessing-the-efficacy-of-a-live-vaccine-against-avian-encephalomyelitis-virus
#7
Wencheng Lin, Piaopiao Lu, Aijun Li, Yu Wu, Hongxin Li, Feng Chen, Jingyun Ma, Qingmei Xie
Avian encephalomyelitis virus (AEV) causes typical neurological symptoms in young chicks and a transient drop in egg production and hatchability in adult laying birds, resulting in huge economic losses in the poultry industry. An effective way to control and prevent this disease is vaccination of the flocks. Here, we assessed the efficacy of the live vaccine candidate strain GDt29 against avian encephalomyelitis virus. The GDt29 strain has low virulence, was confirmed safe, and showed no signs of pathogenicity...
May 16, 2018: Archives of Virology
https://www.readbyqxmd.com/read/29760709/protein-kinase-serine-threonine-kinase-24-positively-regulates-interleukin-17-induced-inflammation-by-promoting-ikk-complex-activation
#8
Yu Jiang, Miao Tian, Wenlong Lin, Xinyuan Wang, Xiaojian Wang
Interleukin 17 (IL-17) is a key inflammatory cytokine that plays a critical role in tissue inflammation and autoimmune diseases. However, its signaling remains poorly understood. In this study, we identified serine/threonine kinase 24 (Stk24) as a positive modulator of IL-17-mediated signaling and inflammation. Stk24 deficiency or knockdown markedly inhibited IL-17-induced phosphorylation of NF-κB and impaired IL-17-induced chemokines and cytokines expression. Stk24 overexpression greatly enhanced IL-17-induced NF-κB activation and expression of chemokines and cytokines in a kinase activity-independent manner...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29760692/il17-il17ra-as-a-novel-signaling-axis-driving-mesenchymal-stem-cell-therapeutic-function-in-experimental-autoimmune-encephalomyelitis
#9
Mónica Kurte, Patricia Luz-Crawford, Ana María Vega-Letter, Rafael A Contreras, Gautier Tejedor, Roberto Elizondo-Vega, Luna Martinez-Viola, Catalina Fernández-O'Ryan, Fernando E Figueroa, Christian Jorgensen, Farida Djouad, Flavio Carrión
The therapeutic effect of mesenchymal stem cells (MSCs) in multiple sclerosis (MS) and the experimental autoimmune encephalomyelitis (EAE) model has been well described. This effect is, in part, mediated through the inhibition of IL17-producing cells and the generation of regulatory T cells. While proinflammatory cytokines such as IFNγ, TNFα, and IL1β have been shown to enhance MSCs immunosuppressive function, the role of IL17 remains poorly elucidated. The aim of this study was, therefore, to investigate the role of the IL17/IL17R pathway on MSCs immunoregulatory effects focusing on Th17 cell generation in vitro and on Th17-mediated EAE pathogenesis in vivo ...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29757405/platelets-drive-inflammation-and-target-gray-matter-and-the-retina-in-autoimmune-mediated-encephalomyelitis
#10
Claretta Sonia D'Souza, Zenjiang Li, Dain Luke Maxwell, Oliver Trusler, Melanie Murphy, Sheila Crewther, Karlheinz Peter, Jacqueline Monique Orian
Despite growing evidence for platelets as active players in infection and immunity, it remains unresolved whether platelets contribute to, or are key elements in the development of neuroinflammation. Using the experimental autoimmune encephalomyelitis (EAE) model of multiple sclerosis, we identified platelet accumulation in the circulation by 7-day postinduction (dpi), ahead of clinical onset which occurs at 13-14 dpi. By inducing platelet depletion between 7 and 16 dpi, we demonstrate an association between platelet accumulation in the spinal cord and disease development...
May 10, 2018: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/29755395/early-onset-creutzfeldt-jakob-disease-mimicking-immune-mediated-encephalitis
#11
Wietse A Wiels, Stephanie Du Four, Laura Seynaeve, Anja Flamez, Thomas Tousseyn, Dietmar Thal, Miguel D'Haeseleer
Objectives: The objective of this study is to explore the clinical, radiological, and pathological manifestations of a rare subtype of prion disease and their implication for differential diagnosis in case of an early onset neuropsychiatric deterioration. Methods: We discuss a patients' clinical history, as well as the string of investigations and symptomatological evolution that finally led to a pathological diagnosis. Results: Our patient had the extremely rare VV1 type sporadic Creutzfeldt-Jakob disease (sCJD)...
2018: Frontiers in Neurology
https://www.readbyqxmd.com/read/29752984/antinociceptive-effects-of-the-antidepressant-phenelzine-are-mediated-by-context-dependent-inhibition-of-neuronal-responses-in-the-dorsal-horn
#12
Liam E Potter, Suzanne Doolen, Katherine Mifflin, Gustavo Tenorio, Glen Baker, Bradley K Taylor, Bradley J Kerr
The putative strong anti-nociceptive properties of the antidepressant phenelzine (PLZ) have not been widely explored as a treatment for pain. Antinociceptive effects of PLZ were identified in the formalin model of tonic pain (Mifflin et al. 2016) and in allodynia associated with experimental autoimmune encephalomyelitis, (EAE) a mouse model of multiple sclerosis (Potter et al. 2016). Here, we further clarify the specific types of stimuli and contexts in which PLZ modulates nociceptive sensitivity. Our findings indicate that PLZ selectively inhibits ongoing inflammatory pain while sparing transient reflexive and acute nociception...
May 9, 2018: Neuroscience
https://www.readbyqxmd.com/read/29749614/microrna-signature-of-central-nervous-system-infiltrating-dendritic-cells-in-an-animal-model-of-multiple-sclerosis
#13
Mariah L Hoye, Angela S Archambault, Taylor M Gordon, Landon K Oetjen, Matthew D Cain, Robyn S Klein, Seth D Crosby, Brian S Kim, Timothy M Miller, Gregory F Wu
Innate immune cells are integral to the pathogenesis of several diseases of the central nervous system (CNS), including multiple sclerosis (MS). Dendritic cells (DCs) are potent CD11c+ antigen-presenting cells that are critical regulators of adaptive immune responses, particularly in autoimmune diseases such as MS. The regulation of DC function in both the periphery and CNS compartment has not been fully elucidated. One limitation to studying the role of CD11c+ DCs in the CNS is that microglia can upregulate CD11c during inflammation, making it challenging to distinguish bone marrow-derived DCs (BMDCs) from microglia...
May 10, 2018: Immunology
https://www.readbyqxmd.com/read/29748743/erythropoietin-and-nrf2-key-factors-in-the-neuroprotection-provided-by-apo-lactoferrin
#14
E T Zakharova, A V Sokolov, N N Pavlichenko, V A Kostevich, I N Abdurasulova, A V Chechushkov, I V Voynova, A Yu Elizarova, N N Kolmakov, M G Bass, I V Semak, A I Budevich, P M Kozhin, N K Zenkov, V M Klimenko, O V Kirik, D E Korzhevskii, E B Menshchikova, V B Vasilyev
Among the properties of lactoferrin (LF) are bactericidal, antianemic, immunomodulatory, antitumour, antiphlogistic effects. Previously we demonstrated its capacity to stabilize in vivo HIF-1-alpha and HIF-2-alpha, which are redox-sensitive multiaimed transcription factors. Various tissues of animals receiving recombinant human LF (rhLF) responded by expressing the HIF-1-alpha target genes, hence such proteins as erythropoietin (EPO), ceruloplasmin, etc. were synthesized in noticeable amounts. Among organs in which EPO synthesis occurred were brain, heart, spleen, liver, kidneys and lungs...
May 10, 2018: Biometals: An International Journal on the Role of Metal Ions in Biology, Biochemistry, and Medicine
https://www.readbyqxmd.com/read/29748664/nanovesicles-from-adipose-derived-mesenchymal-stem-cells-inhibit-t-lymphocyte-trafficking-and-ameliorate-chronic-experimental-autoimmune-encephalomyelitis
#15
Alessia Farinazzo, Stefano Angiari, Ermanna Turano, Edoardo Bistaffa, Silvia Dusi, Serena Ruggieri, Roberta Bonafede, Raffaella Mariotti, Gabriela Constantin, Bruno Bonetti
Cell based-therapies represent promising strategies for the treatment of neurological diseases. We have previously shown that adipose stem cells (ASC) ameliorate chronic experimental autoimmune encephalomyelitis (EAE). Recent evidence indicates that most ASC paracrine effects are mediated by extracellular vesicles, i.e. micro- and nanovesicles (MVs and NVs). We show that preventive intravenous administration of NVs isolated from ASC (ASC-NVs) before disease onset significantly reduces the severity of EAE and decreases spinal cord inflammation and demyelination, whereas therapeutic treatment with ASC-NVs does not ameliorate established EAE...
May 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29747748/pg201-protects-mice-from-experimental-autoimmune-encephalomyelitis-via-suppression-of-effector-t-cell-activation
#16
Min-Jung Bae, Jinyong Choi, Hyun-Keun Kim, Seonung Lim, Sunyoung Kim
BACKGROUND: PG201 is a botanical formulation, approved as an ethical drug (ETC) phytomedicine for treatment of patients with osteoarthritis in Korea, following satisfactory phase II and phase III studies. This phytomedicine was previously been shown to possess significant anti-inflammatory activities, presumably via the control of Th1 and Th17 cells in animal models and in vitro cell culture systems. PURPOSE: In this study, the possibility of using PG201 to treat multiple sclerosis was explored...
April 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29746944/increased-risk-of-autoimmune-diseases-in-dengue-patients-a-population-based-cohort-study
#17
Hao-Ming Li, Ying-Kai Huang, Yuan-Chih Su, Chia-Hung Kao
OBJECTIVE: To investigate the risk of autoimmune diseases in dengue patients. METHODS: We conducted a population-based cohort study by the Taiwan National Health Insurance Research Database, including a total of 12506 newly diagnosed dengue patients and 112554 control subjects between 2000 and 2010, matched by gender, age, income, urbanization, and comorbidities. Both cohorts were followed for a 3-year period to examine the incidence of autoimmune diseases. A Cox proportional hazards regression analysis was applied to calculate the risk of autoimmune diseases between both groups...
May 7, 2018: Journal of Infection
https://www.readbyqxmd.com/read/29744874/implications-of-the-international-paediatric-multiple-sclerosis-study-group-consensus-criteria-for-paediatric-acute-disseminated-encephalomyelitis-a-nationwide-validation-study
#18
Magnus S Boesen, Morten Blinkenberg, Nils Koch-Henriksen, Lau C Thygesen, Peter V Uldall, Melinda Magyari, Alfred P Born
AIM: The International Paediatric Multiple Sclerosis Study Group (IPMSSG) has proposed criteria for acute disseminated encephalomyelitis (ADEM) not evaluated in clinical practice. Our objective was to assess epidemiological implications of the IPMSSG criteria for ADEM in a cohort study using prospectively collected data. METHOD: We identified all diagnosed cases of ADEM in Denmark between 2008 and 2015 from the Danish National Patient Register by International Classification of Diseases 10 codes assigned to acute demyelinating episodes, and we reviewed all medical records to validate ADEM...
May 10, 2018: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/29742431/atf4-regulates-cd4-t-cell-immune-responses-through-metabolic-reprogramming
#19
Xi Yang, Rui Xia, Cuihua Yue, Wensi Zhai, Wenwen Du, Qianting Yang, Huiling Cao, Xiaojuan Chen, Danielle Obando, Yibei Zhu, Xinchun Chen, Jane-Jane Chen, Jon Piganelli, Peter Wipf, Yu Jiang, Guozhi Xiao, Changping Wu, Jingting Jiang, Binfeng Lu
T cells are strongly regulated by oxidizing environments and amino acid restriction. How T cells reprogram metabolism to adapt to these extracellular stress situations is not well understood. Here, we show that oxidizing environments and amino acid starvation induce ATF4 in CD4+ T cells. We also demonstrate that Atf4-deficient CD4+ T cells have defects in redox homeostasis, proliferation, differentiation, and cytokine production. We further reveal that ATF4 regulates a coordinated gene network that drives amino acid intake, mTORC1 activation, protein translation, and an anabolic program for de novo synthesis of amino acids and glutathione...
May 8, 2018: Cell Reports
https://www.readbyqxmd.com/read/29741589/c-reactive-protein-response-in-patients-with-post-treatment-lyme-disease-symptoms-versus-those-with-myalgic-encephalomyelitis-chronic-fatigue-syndrome
#20
Melanie Uhde, Alyssa Indart, Brian A Fallon, Gary P Wormser, Adriana R Marques, Suzanne D Vernon, Armin Alaedini
No abstract text is available yet for this article.
May 8, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
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