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Infection in multiple sclerosis

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https://www.readbyqxmd.com/read/28654678/genetic-factors-affecting-ebv-copy-number-in-lymphoblastoid-cell-lines-derived-from-the-1000-genome-project-samples
#1
Rajendra Mandage, Marco Telford, Juan Antonio Rodríguez, Xavier Farré, Hafid Layouni, Urko M Marigorta, Caitlin Cundiff, Jose Maria Heredia-Genestar, Arcadi Navarro, Gabriel Santpere
Epstein-Barr virus (EBV), human herpes virus 4, has been classically associated with infectious mononucleosis, multiple sclerosis and several types of cancers. Many of these diseases show marked geographical differences in prevalence, which points to underlying genetic and/or environmental factors. Those factors may include a different susceptibility to EBV infection and viral copy number among human populations. Since EBV is commonly used to transform B-cells into lymphoblastoid cell lines (LCLs) we hypothesize that differences in EBV copy number among individual LCLs may reflect differential susceptibility to EBV infection...
2017: PloS One
https://www.readbyqxmd.com/read/28647490/sex-biased-eicosanoid-biology-impact-for-sex-differences-in-inflammation-and-consequences-for-pharmacotherapy
#2
REVIEW
Simona Pace, Lidia Sautebin, Oliver Werz
The incidence, severity and progression of autoimmune diseases (e.g. scleroderma, multiple sclerosis, rheumatoid arthritis) and certain inflammatory diseases (e.g. asthma) are sex-biased where these pathologies dominate in women. However, other immune disorders such as sepsis, post-surgery infections and gout display higher incidence and severity in men. The molecular and cellular basis underlying this sex dimorphism remains incompletely elucidated but may provide important insights for sex-specific pharmacotherapy...
June 21, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28643544/varicella-zoster-meningovasculitis-in-a-multiple-sclerosis-patient-treated-with-natalizumab
#3
Patricia Mulero, Cristina Auger, Laura Parolin, Elena Fonseca, Manuel Requena, Jordi Rio, Mar Tintoré, Alex Rovira, Xavier Montalban
BACKGROUND: Natalizumab is associated with the occasional occurrence of progressive multifocal leukoencephalopathy (PML). While natalizumab-associated PML is well described in multiple sclerosis (MS) patients, herpes and other infections have rarely been reported. OBJECTIVE: To report a case of varicella-zoster (VZV) meningovasculitis in a MS patient treated with natalizumab. METHODS: Case report. RESULTS: A 48-year-old woman diagnosed with MS in treatment with natalizumab (Expanded Disability Status Scale (EDSS): 4...
June 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28642125/safety-and-efficacy-of-dual-lead-thalamic-deep-brain-stimulation-for-patients-with-treatment-refractory-multiple-sclerosis-tremor-a-single-centre-randomised-single-blind-pilot-trial
#4
Seth F Oliveria, Ramon L Rodriguez, Dawn Bowers, Daniel Kantor, Justin D Hilliard, Erin H Monari, Bonnie M Scott, Michael S Okun, Kelly D Foote
BACKGROUND: Efficacy in previous studies of surgical treatments of refractory multiple sclerosis tremor using lesioning or deep brain stimulation (DBS) has been variable. The aim of this study was to investigate the safety and efficacy of dual-lead thalamic DBS (one targeting the ventralis intermedius-ventralis oralis posterior nucleus border [the VIM lead] and one targeting the ventralis oralis anterior-ventralis oralis posterior border [the VO lead]) for the treatment of multiple sclerosis tremor...
June 19, 2017: Lancet Neurology
https://www.readbyqxmd.com/read/28641775/is-toxoplasma-gondii-infection-protective-against-multiple-sclerosis-risk
#5
Asli Koskderelioglu, Ilhan Afsar, Bayram Pektas, Muhtesem Gedizlioglu
BACKGROUND: Parasitic infections may play a protective role in neurodegenative diseases. OBJECTıVE: To determine the association between Toxoplasma gondii (T. gondii) infection and Multiple Sclerosis (MS). METHODS: One hundred fifteen patients with MS were included in the study. Sixty age and gender-matched healthy subjects were recruited as controls. Subjects were assessed for clinical and demographic parameters. The presence of specific IgG antibodies against T...
July 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28639536/recurrent-natalizumab-related-aseptic-meningitis-in-a-patient-with-multiple-sclerosis
#6
Robert W Foley, Nathan T Tagg, Matthew K Schindler, Kaylan M Fenton, Daniel S Reich, Irene Cortese, Ellen M Mowry
Natalizumab is a recombinant humanized monoclonal antibody that decreases T-cell migration into the central nervous system (CNS) through α4 integrin:adhesion-molecule inhibition, thereby increasing the risk for opportunistic CNS infection. Herein, we report a case of infusion-associated aseptic meningitis in a patient receiving natalizumab.
June 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28631829/relationship-of-human-herpes-virus-6-and-multiple-sclerosis-a-systematic-review-and-meta-analysis
#7
REVIEW
Ali Pormohammad, Taher Azimi, Fateme Falah, Ebrahim Faghihloo
Background Infection with human herpes viruses has been suggested to contribute to multiple sclerosis (MS), while interaction between human herpes 6 (HHV6) and MS remain unclear yet. Here, we conducted a meta-analysis on the relationship of HHV6 infection and MS. Materials and Methods All related studies were collected from major databases. The analyses were performed by STATA 14 and Comprehensive Meta-Analysis V2.0 softwares. Pooled odds ratios (ORs) and 95% CIs were calculated from the raw data of the including studies by the random effects models when I2 >50% and fix model when I2 < 50%...
June 20, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28624961/phenotypic-and-functional-characterization-of-t-cells-in-white-matter-lesions-of-multiple-sclerosis-patients
#8
Gijsbert P van Nierop, Marvin M van Luijn, Samira S Michels, Marie-Jose Melief, Malou Janssen, Anton W Langerak, Werner J D Ouwendijk, Rogier Q Hintzen, Georges M G M Verjans
T cells are considered pivotal in the pathology of multiple sclerosis (MS), but their function and antigen specificity are unknown. To unravel the role of T cells in MS pathology, we performed a comprehensive analysis on T cells recovered from paired blood, cerebrospinal fluid (CSF), normal-appearing white matter (NAWM) and white matter lesions (WML) from 27 MS patients with advanced disease shortly after death. The differentiation status of T cells in these compartments was determined by ex vivo flow cytometry and immunohistochemistry...
June 17, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28624334/seasonality-and-autoimmune-diseases-the-contribution-of-the-four-seasons-to-the-mosaic-of-autoimmunity
#9
REVIEW
Abdulla Watad, Shir Azrielant, Nicola Luigi Bragazzi, Kassem Sharif, Paula David, Itay Katz, Gali Aljadeff, Mariana Quaresma, Galya Tanay, Mohammad Adawi, Howard Amital, Yehuda Shoenfeld
Autoimmune diseases (ADs) are a heterogeneous groups of diseases that occur as a results of loss of tolerance to self antigens. While the etiopathogeneis remain obscure, different environmental factors were suggested to have a role in the development of autoimmunity, including infections, low vitamin D levels, UV radiation, and melatonin. Interestingly, such factors possess seasonal variation patterns that could influence disease development, severity and progression. Vitamin D levels which reach a nadir during late winter and early spring is correlated with increased disease activity, clinical severity as well as relapse rates in several disease entities including multiple sclerosis (MS), non-cutaneous flares of systemic lupus erythematosus (SLE), psoriasis, and rheumatoid arthritis (RA)...
June 14, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28620801/fty720-attenuates-infection-induced-enhancement-of-a%C3%AE-accumulation-in-app-ps1-mice-by-modulating-astrocytic-activation
#10
Róisín M McManus, Orla M Finucane, Mieszko M Wilk, Kingston H G Mills, Marina A Lynch
It is well established that infection has a significant detrimental effect on patients with Alzheimer's disease (AD), accelerating cognitive decline and, even in healthy ageing individuals, increasing amyloid-β (Aβ) accumulation in the brain. In animal models of AD infection can also cause damage, with evidence of increased neuroinflammation, amyloid pathology and deterioration of cognitive function. These changes are against a backdrop of an age- and AD-related increase in susceptibility to infection. Here we set out to determine whether FTY720, a molecule that binds sphingosine-1-phosphate (S1P) receptors and with known immunosuppressant effects mediating its therapeutic action in multiple sclerosis (MS), might modulate the impact of infection in a mouse model of AD...
June 15, 2017: Journal of Neuroimmune Pharmacology: the Official Journal of the Society on NeuroImmune Pharmacology
https://www.readbyqxmd.com/read/28620346/primary-progressive-multiple-sclerosis-putting-together-the-puzzle
#11
REVIEW
Ahmed Abdelhak, Martin S Weber, Hayrettin Tumani
The focus of multiple sclerosis research has recently turned to the relatively rare and clearly more challenging condition of primary progressive multiple sclerosis (PPMS). Many risk factors such as genetic susceptibility, age, and Epstein-Barr virus (EBV) infection may interdepend on various levels, causing a complex pathophysiological cascade. Variable pathological mechanisms drive disease progression, including inflammation-associated axonal loss, continuous activation of central nervous system resident cells, such as astrocytes and microglia as well as mitochondrial dysfunction and iron accumulation...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28619429/vitamin-d-and-multiple-sclerosis-an-update
#12
REVIEW
Charles Pierrot-Deseilligny, Jean-Claude Souberbielle
The most recent findings linking exposure to sun and vitamin D insufficiency to multiple sclerosis (MS) are reviewed. Due to insufficient sunshine and changing lifestyles, hypovitaminosis D is widespread in temperate countries. Numerous epidemiological studies have strongly suggested that sunshine and vitamin D insufficiency contributes to MS risk in these countries. Moreover, several large genetic studies in MS patients have recently stated unequivocally that diverse abnormalities involving vitamin D metabolism are related to the risk of the disease...
May 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28619423/acute-respiratory-distress-syndrome-following-alemtuzumab-therapy-for-relapsing-multiple-sclerosis
#13
Keh Yann, Fran Jackson, Nazar Sharaf, Tatiana Mihalova, Paul Talbot, David Rog, Adrian Pace
We present the case of a 54 year old woman with known relapsing-remitting multiple sclerosis who presented with acute respiratory deterioration five weeks after a first course of alemtuzumab. Imaging showed bilateral ground glass changes and extensive investigations confirmed chest infection with dual pathogens - Pneumocystis jirovecii and Cytomegalovirus. She responded to standard anti-PJP and CMV therapy and was discharged on oral prophylaxis. Opportunistic infections in the weeks immediately following alemtuzumab therapy remain an uncommon complication but one that requires clinical vigilance, careful monitoring and appropriate prophylactic therapy...
May 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28618110/intravesical-vanilloids-for-treating-neurogenic-lower-urinary-tract-dysfunction-in-patients-with-multiple-sclerosis-a-systematic-review-and-meta-analysis-a-report-from-the-neuro-urology-promotion-committee-of-the-international-continence-society-ics
#14
REVIEW
Véronique Phé, Marc P Schneider, Benoit Peyronnet, Nadim Abo Youssef, Livio Mordasini, Emmanuel Chartier-Kastler, Lucas M Bachmann, Thomas M Kessler
AIMS: To systematically assess all available evidence on efficacy and safety of vanilloids for treating neurogenic lower urinary tract dysfunction (NLUTD) in patients with multiple sclerosis (MS). METHODS: This systematic review and meta-analysis was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. Studies were identified by electronic search of Cochrane register, Embase, Medline, Scopus, (last search January 8, 2016)...
June 15, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28617365/-immune-reconstitution-inflammatory-syndrome-and-rebound-syndrome-in-multiple-sclerosis-patients-who-stopped-disease-modification-therapy-current-understanding-and-a-case-report
#15
A N Belova, M V Rasteryaeva, N I Zhulina, E M Belova, A N Boyko
More and more multiple sclerosis patients have been receiving treatment with new immunomodulatory drugs. Its discontinuation because of side-effects, lack of efficacy or pregnancy has been increasing as well. This paper reviews such severe complications of natalizumab and fingolimod cessation as immune reconstitution inflammatory syndrome (IRIS) and rebound. The short history, immunopathogenesis and diagnostic criteria of IRIS in individuals with human immunodeficiency virus infection are covered. Clinical and radiological presentations as well as possible pathogenic mechanisms of IRIS in patients treated with natalizumab and fingolimod are discussed...
2017: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/28615436/hospital-safety-among-neurologic-patients-a-population-based-cohort-study-of-adverse-events
#16
Khara M Sauro, Hude Quan, Khokan C Sikdar, Peter Faris, Nathalie Jette
OBJECTIVE: To examine the frequency and type of adverse events (AEs) experienced by neurologic patients in hospital. METHODS: This population-based, retrospective cohort study used hospital discharge abstract data for children and adults admitted to hospital from 2009 to 2015 with 1 of 9 neurologic conditions (Alzheimer disease and related dementia, brain tumor, epilepsy, motor neuron disease, multiple sclerosis, parkinsonism/Parkinson disease, spinal cord injury, traumatic brain injury, and stroke)...
June 14, 2017: Neurology
https://www.readbyqxmd.com/read/28611533/functional-budd-chiari-syndrome-associated-with-severe-polycystic-liver-disease
#17
Precil Diego Miranda de Menezes Neves, Bruno Eduardo Pedroso Balbo, Elieser Hitoshi Watanabe, Vinicius Rocha-Santos, Wellington Andraus, Luiz Augusto Carneiro D'Albuquerque, Luiz Fernando Onuchic
A 50-year-old woman with end-stage renal disease secondary to autosomal dominant polycystic kidney disease was referred to a quaternary care center due to significantly increased abdominal girth. Her physical examination revealed tense ascites and abdominal collateral veins. A 10-L paracentesis improved abdominal discomfort and disclosed a transudate, suggestive of portal hypertension. A computed tomographic scan revealed massive hepatomegaly caused by multiple cysts of variable sizes, distributed throughout all hepatic segments...
2017: Clinical Medicine Insights. Gastroenterology
https://www.readbyqxmd.com/read/28607749/an-essential-role-of-virus-infected-b-cells-in-the-marmoset-experimental-autoimmune-encephalomyelitis-model
#18
REVIEW
Bert A 't Hart, Yolanda S Kap
Infection with Epstein-Barr virus (EBV) has been associated with an enhanced risk of genetically susceptible individuals to develop multiple sclerosis (MS). However, an explanation for the contrast between the high EBV infection prevalence (60-90%) and the low MS prevalence (0.1%) eludes us. Here we propose a new concept for the EBV-MS association developed in the experimental autoimmune encephalomyelitis model in marmoset monkeys, which are naturally infected with the EBV-related γ1-herpesvirus CalHV3. The data indicate that the infection of B cells with a γ1-herpesvirus endows them with the capacity to activate auto-aggressive CD8+ T cells specific for myelin oligodendrocyte glycoprotein...
January 2017: Multiple Sclerosis Journal—Experimental, Translational and Clinical
https://www.readbyqxmd.com/read/28604802/serological-profiling-of-the-ebv-immune-response-in-chronic-fatigue-syndrome-using-a-peptide-microarray
#19
Madlen Loebel, Maren Eckey, Franziska Sotzny, Elisabeth Hahn, Sandra Bauer, Patricia Grabowski, Johannes Zerweck, Pavlo Holenya, Leif G Hanitsch, Kirsten Wittke, Peter Borchmann, Jens-Ulrich Rüffer, Falk Hiepe, Klemens Ruprecht, Uta Behrends, Carola Meindl, Hans-Dieter Volk, Ulf Reimer, Carmen Scheibenbogen
BACKGROUND: Epstein-Barr-Virus (EBV) plays an important role as trigger or cofactor for various autoimmune diseases. In a subset of patients with Chronic Fatigue Syndrome (CFS) disease starts with infectious mononucleosis as late primary EBV-infection, whereby altered levels of EBV-specific antibodies can be observed in another subset of patients. METHODS: We performed a comprehensive mapping of the IgG response against EBV comparing 50 healthy controls with 92 CFS patients using a microarray platform...
2017: PloS One
https://www.readbyqxmd.com/read/28603559/three-immune-mediated-disease-models-induced-by-theiler-s-virus-multiple-sclerosis-seizures-and-myocarditis
#20
Ikuo Tsunoda, Fumitaka Sato, Seiichi Omura, Mitsugu Fujita, Namie Sakiyama, Ah-Mee Park
Theiler's murine encephalomyelitis virus (TMEV) infection has been used as a viral model for multiple sclerosis (MS), as TMEV can induce chronic inflammatory demyelinating lesions with viral persistence in the spinal cord of SJL/J mice. In contrast, when C57BL/6 mice are infected with TMEV, the mice can clear the virus from the central nervous system (CNS), without viral persistence or demyelination, but develop seizures and hippocampal sclerosis, which has been used as a viral model for seizures/epilepsy. In the two TMEV-induced CNS disease models, not only viral infection, but also immune responses contribute to the pathogenesis...
November 2016: Clinical & Experimental Neuroimmunology
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