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Infection in multiple sclerosis

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https://www.readbyqxmd.com/read/29238348/the-mannose-receptor-in-regulation-of-helminth-mediated-host-immunity
#1
REVIEW
Irma van Die, Richard D Cummings
Infection with parasitic helminths affects humanity and animal welfare. Parasitic helminths have the capacity to modulate host immune responses to promote their survival in infected hosts, often for a long time leading to chronic infections. In contrast to many infectious microbes, however, the helminths are able to induce immune responses that show positive bystander effects such as the protection to several immune disorders, including multiple sclerosis, inflammatory bowel disease, and allergies. They generally promote the generation of a tolerogenic immune microenvironment including the induction of type 2 (Th2) responses and a sub-population of alternatively activated macrophages...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29232960/ocrelizumab-a-new-b-cell-therapy-for-relapsing-remitting-and-primary-progressive-multiple-sclerosis
#2
Amanda M Stahnke, Kathryn M Holt
OBJECTIVE: To review the pharmacology, pharmacokinetics, efficacy, and safety of ocrelizumab, a new B-cell-targeted therapy for multiple sclerosis (MS). DATA SOURCES: A comprehensive search of PubMed and OVID/MEDLINE was conducted using search terms ocrelizumab and multiple sclerosis using the date range of 1946 through October 2017. STUDY SELECTION AND DATA EXTRACTION: All English-language, human-subject articles related to ocrelizumab and MS were evaluated...
December 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/29226021/holmes-tremor-secondary-to-a-stabbing-lesion-in-the-midbrain
#3
Rubens Gisbert Cury, Egberto Reis Barbosa, Christian Freitas, Luis Filipe de Souza Godoy, Wellingson Silva Paiva
Background: The development of Holmes tremor (HT) after a direct lesion of the midbrain has rarely been reported in the literature, although several etiologies have been linked with HT, such as stroke, brainstem tumors, multiple sclerosis, head trauma, or infections. Phenomenology Shown: A 31-year-old male, having been stabbed in the right eye, presented with a rest and action tremor in the left upper limb associated with left hemiparesis with corresponding post-contrast volumetric magnetic resonance imaging T1 with sagittal oblique reformation showing the knife trajectory reaching the right midbrain...
2017: Tremor and Other Hyperkinetic Movements
https://www.readbyqxmd.com/read/29210147/drug-exposure-and-the-risk-of-multiple-sclerosis-a-systematic-review
#4
REVIEW
Heather Y Yong, Kyla A McKay, Cole G J Daley, Helen Tremlett
BACKGROUND: Several environmental and lifestyle factors have been associated with multiple sclerosis (MS) risk, including some pharmacological treatments. We systematically reviewed the literature on prescription drug exposure and MS risk. METHODS: Six databases were searched for original observational studies reporting drug exposure and MS risk published before 2017. RESULTS: Thirteen articles fulfilled inclusion criteria. Exposure to neither amiloride nor valproic acid was associated with MS (adjusted hazard ratio (adj...
December 6, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/29202792/the-cc-chemokine-ligand-ccl-1-upregulated-by-the-viral-transactivator-tax-can-be-downregulated-by-minocycline-possible-implications-for-long-term-treatment-of-htlv-1-associated-myelopathy-tropical-spastic-paraparesis
#5
Mineki Saito, Hiroe Sejima, Tadasuke Naito, Hiroshi Ushirogawa, Toshio Matsuzaki, Eiji Matsuura, Yuetsu Tanaka, Tatsufumi Nakamura, Hiroshi Takashima
BACKGROUND: Chemokine (C-C motif) ligand 1 (CCL1) is produced by activated monocytes/ macrophages and T-lymphocytes, and acts as a potent attractant for Th2 cells and a subset of T-regulatory (Treg) cells. Previous reports have indicated that CCL1 is overexpressed in adult T-cell leukemia cells, mediating an autocrine anti-apoptotic loop. Because CCL1 is also known as a potent chemoattractant that plays a major role in inflammatory processes, we investigated the role of CCL1 in the pathogenesis of human T-cell leukemia virus type 1 (HTLV-1)-associated myelopathy/tropical spastic paraparesis (HAM/TSP)...
December 4, 2017: Virology Journal
https://www.readbyqxmd.com/read/29201154/lymphatic-system-and-gut-microbiota-affect-immunopathology-of-neuroinflammatory-diseases-including-multiple-sclerosis-neuromyelitis-optica-and-alzheimer-s-disease
#6
Ikuo Tsunoda
Microbial infections lead to neurological damages either by direct infection in the nervous tissues or by uncontrolled immune responses (immunopathology). For example, in Zika virus infection, microcephaly can be caused by the former, i.e., direct viral infection in the brain, while Guillain-Barré syndrome (GBS) seems to be antibody-mediated immunopathology. Although a variety of factors affect immunopathology, two essential systems maintaining whole-body homeostasis had long been neglected: 1) the lymphatic system and 2) microbiota...
August 2017: Clinical & Experimental Neuroimmunology
https://www.readbyqxmd.com/read/29194580/a-systems-medicine-approach-reveals-disordered-immune-system-and-lipid-metabolism-in-multiple-sclerosis-patients
#7
Mehrdad Pazhouhandeh, Mohammad-Ali Sahraian, Seyed Davar Siadat, Abolfazl Fateh, Farzam Vaziri, Fatemeh Tabrizi, Faezeh Ajorloo, Arash Keshavarzi Arshadi, Elnaz Fatemi, Somaye Piri Gavgani, Fereidoun Mahboudi, Fatemeh Rahimi Jamnani
Identification of autoimmune processes and introduction of new autoantigens involved in the pathogenesis of multiple sclerosis (MS) can be helpful in the design of new drugs to prevent unresponsiveness and side effects in patients. To find significant changes, we evaluated the autoantibody repertoires in newly diagnosed relapsing-remitting MS patients (NDP) and those receiving disease modifying therapy (RP). Through a random peptide phage library, a panel of NDP- and RP-specific peptides was identified, producing two protein datasets visualized using Gephi, based on protein-protein interactions in the STRING database...
November 30, 2017: Clinical and Experimental Immunology
https://www.readbyqxmd.com/read/29178444/alemtuzumab-versus-interferon-beta-1a-for-relapsing-remitting-multiple-sclerosis
#8
REVIEW
Jian Zhang, Shengliang Shi, Yueling Zhang, Jiefeng Luo, Yousheng Xiao, Lian Meng, Xiaobo Yang
BACKGROUND: Alemtuzumab is a humanised monoclonal antibody that alters the circulating lymphocyte pool, causing prolonged lymphopenia, thus remoulding the immune repertoire that accompanies homeostatic lymphocyte reconstitution. It has been proved more effective than interferon (IFN) 1a for the treatment of relapsing-remitting multiple sclerosis (RRMS). OBJECTIVES: To compare the efficacy, tolerability and safety of alemtuzumab versus interferon beta 1a in the treatment of people with RRMS to prevent disease activity...
November 27, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29174817/-bladder-cancer-in-neurogenic-patients-a-retrospective-study-of-management-and-follow-up
#9
P Ali, C Lefevre, B Perrouin-Verbe, L Le Normand, J Rigaud, O Bouchot, A Levesque, M-A Perrouin-Verbe
INTRODUCTION: The prevalence of bladder cancer (BC) in neurological patients seems to be similar to that of the general population. However, they are more aggressive with a higher rate of muscle-invasive forms and squamous cells carcinomas. The aim of the current study was to report etiologies, management and outcomes of BC in neurological population. MATERIAL AND METHOD: Were enrolled all neurological patients with a BC diagnosed between 2004 and 2017. The following data were retrospectively reported: age, gender, duration of the disease, mode of discovery, histological type, treatment and outcomes...
November 22, 2017: Progrès en Urologie
https://www.readbyqxmd.com/read/29174408/survivorship-and-outcomes-in-patients-with-multiple-sclerosis-undergoing-total-joint-arthroplasty
#10
Alexander J Rondon, Patrick K Schlitt, Timothy L Tan, Jessica L Phillips, Max R Greenky, James J Purtill
BACKGROUND: Patients with multiple sclerosis (MS) frequently require total joint arthroplasty (TJA). The outcomes of TJA in patients with MS, who are frequently on immunomodulatory medications and physically deconditioned, remain largely unknown. The aim of this study is to elucidate the survivorship and reasons for failure in this patient population. METHODS: A single-institution retrospective review of 108 TJAs (46 knees and 62 hips) was performed from 2000 to 2016...
November 8, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29169241/gut-reactions-how-the-blood-brain-barrier-connects-the-microbiome-and-the-brain
#11
Aric F Logsdon, Michelle A Erickson, Elizabeth M Rhea, Therese S Salameh, William A Banks
A growing body of evidence indicates that the microbiome interacts with the central nervous system (CNS) and can regulate many of its functions. One mechanism for this interaction is at the level of the blood-brain barriers (BBBs). In this minireview, we examine the several ways the microbiome is known to interact with the CNS barriers. Bacteria can directly release factors into the systemic circulation or can translocate into blood. Once in the blood, the microbiome and its factors can alter peripheral immune cells to promote interactions with the BBB and ultimately with other elements of the neurovascular unit...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/29168160/cladribine-to-treat-relapsing-forms-of-multiple-sclerosis
#12
REVIEW
Gavin Giovannoni
Cladribine is a purine nucleoside analogue that selectively depletes peripheral lymphocytes without a major impact on cells of the innate immune system. An oral formulation of cladribine has been developed to be given as short courses over two annual cycles. Oral cladribine results in the peripheral depletion of lymphocytes that is gradual, occurring over several weeks, and is not associated with a cell lysis syndrome, has a greater impact on B cells than T cells, and is followed by gradual reconstitution of the peripheral lymphocyte counts over several months...
November 22, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/29163523/interleukin-5-mediates-parasite-induced-protection-against-experimental-autoimmune-encephalomyelitis-association-with-induction-of-antigen-specific-cd4-cd25-t-regulatory-cells
#13
Giang T Tran, Paul L Wilcox, Lindsay A Dent, Catherine M Robinson, Nicole Carter, Nirupama D Verma, Bruce M Hall, Suzanne J Hodgkinson
Objective: To examine if the protective effect of parasite infection on experimental autoimmune encephalomyelitis (EAE) was due to interleukin (IL)-5, a cytokine produced by a type-2 response that induces eosinophilia. We hypothesize that, in parasite infections, IL-5 also promotes expansion of antigen-specific T regulatory cells that control autoimmunity. Methods: Nippostrongylus brasiliensis larvae were used to infect Lewis rats prior to induction of EAE by myelin basic protein...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29163443/parasite-derived-proteins-for-the-treatment-of-allergies-and-autoimmune-diseases
#14
REVIEW
Zhenyu Wu, Lifu Wang, Yanlai Tang, Xi Sun
The morbidity associated with atopic diseases and immune dysregulation disorders such as asthma, food allergies, multiple sclerosis, atopic dermatitis, type 1 diabetes mellitus, and inflammatory bowel disease has been increasing all around the world over the past few decades. Although the roles of non-biological environmental factors and genetic factors in the etiopathology have been particularly emphasized, they do not fully explain the increase; for example, genetic factors in a population change very gradually...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29162504/checks-and-balances-between-autophagy-and-the-inflammasomes-during-infection
#15
REVIEW
Stephanie Seveau, Joanne Turner, Mikhail A Gavrilin, Jordi B Torrelles, Luanne Hall-Stoodley, Jacob Yount, Amal O Amer
Autophagy and inflammasome complex assembly are physiological processes that control homeostasis, inflammation, and immunity. Autophagy is a ubiquitous pathway that degrades cytosolic macromolecules or organelles, as well as intracellular pathogens. Inflammasomes are multi-protein complexes that assemble in the cytosol of cells upon detection of pathogen- or danger-associated molecular patterns. A critical outcome of inflammasome assembly is the activation of the serine protease caspase-1, which activates the pro-inflammatory cytokine precursors pro-IL-1β and pro-IL-18...
November 18, 2017: Journal of Molecular Biology
https://www.readbyqxmd.com/read/29158778/helicobacter-pylori-and-gut-microbiota-in-multiple-sclerosis-versus-alzheimer-s-disease-10-pitfalls-of-microbiome-studies
#16
Ah-Mee Park, Seiichi Omura, Mitsugu Fujita, Fumitaka Sato, Ikuo Tsunoda
Alteration of microbiota has been associated with intestinal, inflammatory, and neurological diseases. Abundance of "good bacteria" such as Bifidobacterium, or their products have been generally believed to be beneficial for any diseases, while "bad bacteria" such as pathogenic Helicobacter pylori are assumed to be always detrimental for hosts. However, this is not the case when we compare and contrast the association of the gut microbiota with two neurological diseases, multiple sclerosis (MS) and Alzheimer's disease (AD)...
August 2017: Clinical & Experimental Neuroimmunology
https://www.readbyqxmd.com/read/29153606/pegylated-interferon-beta-in-the-treatment-of-the-theiler-s-murine-encephalomyelitis-virus-mouse-model-of-multiple-sclerosis
#17
Francesca Gilli, Darlene B Royce, Krista D DiSano, Andrew R Pachner
We evaluated the effects of pegylated-interferonβ-1a (pegIFNβ) therapy on intrathecal antibody responses, disability progression, and viral load in the CNS in mice infected with the Theiler's virus (TMEV), an animal model of progressive disability in Multiple Sclerosis (MS). The lack of a direct antiviral activity in the CNS, the absence of any effect upon the intrathecal immune response, and the failure to treat disease progression, indicate that the immunomodulatory effects of pegIFNβ-1a likely occur in the systemic circulation rather than within the CNS...
December 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29152583/inhibition-of-retrograde-transport-limits-polyomavirus-infection-in-vivo
#18
Saumya Maru, Ge Jin, Dhimant Desai, Shantu Amin, Shwetank, Matthew D Lauver, Aron E Lukacher
Polyomaviruses (PyVs) silently infect most humans, but they can cause life-threatening diseases in immunocompromised individuals. The JC polyomavirus (JCPyV) induces progressive multifocal leukoencephalopathy, a severe demyelinating disease in multiple sclerosis patients receiving immunomodulatory therapy, and BK polyomavirus (BKPyV)-associated nephropathy is a major cause of kidney allograft failure. No effective anti-PyV agents are available. Several compounds have been reported to possess anti-PyV activity in vitro, but none have shown efficacy in clinical trials...
November 2017: MSphere
https://www.readbyqxmd.com/read/29150289/the-cause-of-multiple-sclerosis-is-autoimmune-attack-of-adenosyltransferase-thereby-limiting-adenosylcobalamin-production
#19
J L Boucher
The pathogenesis of multiple sclerosis (MS) begins with an infection by a bacterium from the class of bacteria that produce and utilize adenosylcobalamin (AdoCbl) and possess an adenosyl transferase enzyme (ATR); these bacteria are the exogenous antigens that cause MS. Human ATR is homologous to bacterial ATR and B cells produce anti-ATR antibodies as an autoimmune response thereby reducing the concentration of ATR and thus limiting production of AdoCbl, one of the two bioactive forms of vitamin B12. The next step in MS pathogenesis is a period of subclinical AdoCbl deficiency over a period of many years resulting in production of odd-carbon-number fatty acids that are incorporated into myelin rendering it antigenic...
November 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/29143550/safety-and-tolerability-of-inebilizumab-medi-551-an-anti-cd19-monoclonal-antibody-in-patients-with-relapsing-forms-of-multiple-sclerosis-results-from-a-phase-1-randomised-placebo-controlled-escalating-intravenous-and-subcutaneous-dose-study
#20
Mark A Agius, Gabriela Klodowska-Duda, Maciej Maciejowski, Andrzej Potemkowski, Jing Li, Kaushik Patra, Jacob Wesley, Soraya Madani, Gerard Barron, Eliezer Katz, Armando Flor
BACKGROUND: B cells may be involved in the pathophysiology of multiple sclerosis (MS). Inebilizumab (formerly MEDI-551) binds to and depletes CD19(+) B cells. OBJECTIVES: To assess safety, tolerability, pharmacokinetics, pharmacodynamics and immunogenicity of inebilizumab in adults with relapsing MS. METHODS: This phase 1 trial randomised 28 patients 3:1 (21, inebilizumab; 7, placebo) to inebilizumab (2 intravenous (IV) doses, days 1 and 15: 30, 100 or 600 mg; or single subcutaneous (SC) dose on day 1: 60 or 300 mg) or matching placebo, with follow-up until at least week 24 or return of CD19(+) B-cell count to ⩾80 cells/µL...
November 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
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