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Infection in multiple sclerosis

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https://www.readbyqxmd.com/read/28237728/recognition-of-viral-and-self-antigens-by-th1-and-th1-th17-central-memory-cells-in-patients-with-multiple-sclerosis-reveals-distinct-roles-in-immune-surveillance-and-relapses
#1
Moira Paroni, Virginia Maltese, Marco De Simone, Valeria Ranzani, Paola Larghi, Chiara Fenoglio, Anna M Pietroboni, Milena A De Riz, Maria C Crosti, Stefano Maglie, Monica Moro, Flavio Caprioli, Riccardo Rossi, Grazisa Rossetti, Daniela Galimberti, Massimiliano Pagani, Elio Scarpini, Sergio Abrignani, Jens Geginat
BACKGROUND: Multiple sclerosis (MS) is an inflammatory demyelinating disease of the central nervous system (CNS) that is caused by autoreactive T cells and associated with viral infections. However, the phenotype of pathogenic T cells in peripheral blood remains to be defined, and how viruses promote MS is debated. OBJECTIVE: We aimed to identify and characterize potentially pathogenic autoreactive T cells, as well as protective antiviral T cells, in patients with MS...
February 16, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28237622/theiler-s-murine-encephalomyelitis-virus-infection-of-sjl-j-and-c57bl-6j-mice-models-for-multiple-sclerosis-and-epilepsy
#2
REVIEW
Ana Beatriz DePaula-Silva, Tyler J Hanak, Jane E Libbey, Robert S Fujinami
Mouse models are great tools to study the mechanisms of disease development. Theiler's murine encephalomyelitis virus is used in two distinct viral infection mouse models to study the human diseases multiple sclerosis (MS) and epilepsy. Intracerebral (i.c.) infection of the SJL/J mouse strain results in persistent viral infection of the central nervous system and a MS-like disease, while i.c. infection of the C57BL/6J mouse strain results in acute seizures and epilepsy. Our understanding of how the immune system contributes to the development of two disparate diseases caused by the same virus is presented...
February 12, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28220601/multiple-sclerosis-and-nephrolithiasis-a-matched-case-comparative-study
#3
Vishnu Ganesan, Wen Min Chen, Rajat Jain, Shubha De, Manoj Monga
OBJECTIVE: To compare stone composition and serum/urine biochemistries in stone formers with multiple sclerosis (MS) against stone formers without MS and to examine the association between mobility, methods of bladder emptying, and stone formation. MATERIALS AND METHODS: In this retrospective case-control study, we identified patients diagnosed with multiple sclerosis and kidney stone disease who were seen at our institution between 2001 and 2016. For the first part of the study, up to 2 controls (stone formers without a history of MS) were identified for each case and matched on age, body mass index (BMI), and sex...
February 20, 2017: BJU International
https://www.readbyqxmd.com/read/28197337/defective-t-cell-control-of-epstein-barr-virus-infection-in-multiple-sclerosis
#4
Michael P Pender, Peter A Csurhes, Jacqueline M Burrows, Scott R Burrows
Mounting evidence indicates that infection with Epstein-Barr virus (EBV) has a major role in the pathogenesis of multiple sclerosis (MS). Defective elimination of EBV-infected B cells by CD8(+) T cells might cause MS by allowing EBV-infected autoreactive B cells to accumulate in the brain. Here we undertake a comprehensive analysis of the T-cell response to EBV in MS, using flow cytometry and intracellular IFN-γ staining to measure T-cell responses to EBV-infected autologous lymphoblastoid cell lines and pools of human leukocyte antigen (HLA)-class-I-restricted peptides from EBV lytic or latent proteins and cytomegalovirus (CMV), in 95 patients and 56 EBV-seropositive healthy subjects...
January 2017: Clinical & Translational Immunology
https://www.readbyqxmd.com/read/28192476/th40-cells-cd4-cd40-tcells-drive-a-more-severe-form-of-experimental-autoimmune-encephalomyelitis-than-conventional-cd4-t-cells
#5
Gisela M Vaitaitis, Martin G Yussman, Dan M Waid, David H Wagner
CD40-CD154 interaction is critically involved in autoimmune diseases, and CD4 T cells play a dominant role in the Experimental Autoimmune Encephalomyelitis (EAE) model of Multiple Sclerosis (MS). CD4 T cells expressing CD40 (Th40) are pathogenic in type I diabetes but have not been evaluated in EAE. We demonstrate here that Th40 cells drive a rapid, more severe EAE disease course than conventional CD4 T cells. Adoptively transferred Th40 cells are present in lesions in the CNS and are associated with wide spread demyelination...
2017: PloS One
https://www.readbyqxmd.com/read/28181178/the-ocular-manifestations-of-drugs-used-to-treat-multiple-sclerosis
#6
REVIEW
Gregory Heath, Archana Airody, Richard Peter Gale
Recent times have seen an increase in the number of options to treat multiple sclerosis. Ocular manifestations of multiple sclerosis are well known to treating physicians; however, the medications used to treat multiple sclerosis can also have ocular side effects. This review article focuses on the ocular manifestations of corticosteroids and disease-modifying agents such as interferon, fingolomod, natalizumab, alemtuzumab and mitoxantron used to treat the disease. The ocular manifestations of multiple sclerosis treatments can be varied depending on the drug used, and include retinopathy, chronic central serous chorioretinopathy, macular oedema, Graves' ophthalmopathy and cortical blindness...
February 8, 2017: Drugs
https://www.readbyqxmd.com/read/28165320/cutaneous-cryptococcosis-in-a-patient-taking-fingolimod-for-multiple-sclerosis-here-come-the-opportunistic-infections
#7
Adam F Carpenter, Shikha J Goodwin, Peter F Bornstein, Andrew J Larson, Christine K Markus
BACKGROUND: Fingolimod is an oral disease-modifying therapy for relapsing forms of multiple sclerosis, which acts by sequestering lymphocytes within lymph nodes. OBJECTIVE: To describe a case of extrapulmonary cryptococcosis in a patient taking fingolimod. METHODS: Case report. RESULTS: A 47-year-old man developed a non-healing skin lesion approximately 16 months after starting treatment with fingolimod. Biopsy revealed cryptococcosis...
February 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28165319/progressive-multifocal-leukoencephalopathy-in-two-natalizumab-treated-stepsisters-an-intriguing-coincidence
#8
Frédéric Bacchetta, Amandine Mathias, Myriam Schluep, Renaud Du Pasquier
BACKGROUND: Natalizumab, a treatment used in multiple sclerosis (MS), is associated with cases of progressive multifocal leukoencephalopathy (PML). OBJECTIVE: We describe two cases of PML in related but not genetically apparented natalizumab-treated MS patients who are stepsisters. Reported cases/outcomes: While Patient 1 developed PML, Patient 2 was on natalizumab and had contacts with Patient 1. Patient 2 was diagnosed with PML 5 months after Patient 1. CONCLUSION: The clinical and temporal data highly suggest that there was JC virus (JCV) transmission from one patient to the other with development of PML as primo-infection in Patient 2...
February 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28165135/multiple-sclerosis-associated-retrovirus-epstein-barr-virus-and-vitamin-d-status-in-patients-with-relapsing-remitting-multiple-sclerosis
#9
Aliehossadat Mostafa, Somayeh Jalilvand, Zabihollah Shoja, Ahmad Nejati, Shohreh Shahmahmoodi, Mohammad Ali Sahraian, Sayed Mahdi Marashi
The relationship between infections and autoimmune diseases is complex and there are several reports highlighting the role of human endogenous retroviruses (HERVs) in these patients. The levels of multiple sclerosis-associated retrovirus (MSRV)-type DNA of Env gene was measured in peripheral blood mononuclear cells from 52 patients with relapsing-remitting multiple sclerosis (RRMS) and 40 healthy controls using specific quantitative PCR (qPCR) analysis. Furthermore, we analyzed the status of HERV-W/MSRV in these patients with regards to both EBV (DNA load and anti-EBNA1 IgG antibody) and vitamin D concentration...
February 6, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28152213/melatonin-signaling-in-t-cells-functions-and-applications
#10
REVIEW
Wenkai Ren, Gang Liu, Shuai Chen, Jie Yin, Jing Wang, Bie Tan, Guoyao Wu, Fuller W Bazer, Yuanyi Peng, Tiejun Li, Russel J Reiter, Yulong Yin
Melatonin affects a variety of physiological processes including circadian rhythms, cellular redox status and immune function. Importantly, melatonin significantly influences T cell-mediated immune responses, which are crucial to protect mammals against cancers and infections, but are associated with pathogenesis of many autoimmune diseases. This review focuses on our current understanding of the significance of melatonin in T cell biology and the beneficial effects of melatonin in T cell response-based diseases...
February 2, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28143860/hepatitis-e-virus-infection-in-a-patient-with-suspected-drug-induced-liver-injury
#11
Ashfaque Memon, Jose Miranda
A 58 years old woman, known case of multiple sclerosis, was referred to the acute medical assessment unit for worsening liver function. She was recently started on a new drug (fingolimod) for multiple sclerosis. After excluding common causes of acute hepatitis in the community, a working diagnosis of drug-induced liver injury was made. When liver enzymes kept rising, further investigations were carried out, which revealed acute hepatitis E virus (HEV) infection. This finding was unexpected, as this patient had no risk factor to acquire HEV infection and there was not a single case of HEV diagnosed in our hospital since long time...
January 31, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28139946/multiple-sclerosis-in-pregnancy-prevalence-sociodemographic-features-and-obstetrical-outcomes
#12
Alex Fong, Cindy T Chau, Cara Quant, Jennifer Duffy, Deyu Pan, Dotun A Ogunyemi
OBJECTIVE: We sought to describe the prevalence, sociodemographic features, and antenatal/peripartum outcomes of multiple sclerosis (MS) in pregnancy. STUDY DESIGN: A retrospective cohort study was performed using deliveries in California from 2001-2009. Cases of MS as well as other morbidities were identified via ICD-9-CM code. Logistic regression was performed to adjust for potential confounders. RESULTS: 1,185 out of 4,424,049 deliveries were complicated by MS...
January 31, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28130920/interdisciplinary-risk-management-in-the-treatment-of-multiple-sclerosis
#13
Joachim Havla, Clemens Warnke, Tobias Derfuss, Ludwig Kappos, Hans-Peter Hartung, Reinhard Hohlfeld
BACKGROUND: Multiple sclerosis (MS) is the most common autoimmune disease of the central nervous system. There are at least 150 000 persons with MS in Germany. Recent years have seen the approval of new drugs against. METHODS: This article is based on pertinent literature retrieved by a selective search in PubMed as well as on documentation of relevant risks and adverse effects in "red hand letters" (information bulletins from pharmaceutical companies to physicians about adverse drug effects) and elsewhere, along with data provided by the German Multiple Sclerosis Competence Network...
December 26, 2016: Deutsches Ärzteblatt International
https://www.readbyqxmd.com/read/28130412/update-on-disease-modifying-therapies-for-multiple-sclerosis
#14
Diana L Vargas, William R Tyor
Multiple sclerosis (MS) is an autoimmune, demyelinating disease of the central nervous system (CNS). It predominantly affects young women and is one of the most common causes of disability in young adults. MS is characterized by formation of white matter lesions in the CNS as a result of inflammation, demyelination, and axonal loss. Treatment has been a focus of neurological research for over 60 years. A number of disease-modifying therapies (DMTs) have become available making MS a treatable disease. These compounds target the inflammatory response in MS...
January 27, 2017: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/28119887/botulinum-toxin-in-spinal-cord-injury-patients-with-neurogenic-detrusor-overactivity
#15
Young Sam Cho, Khae Hawn Kim
Evidence for the efficacy and safety of intravesical onabotulinum toxin A (onabotA) injections has led to them being licensed in many countries, including Korea, for the treatment of patients with urinary incontinence due to neurogenic detrusor overactivity (NDO) resulting from spinal cord injury or multiple sclerosis who are refractory or intolerant to anticholinergic medications. OnabotA injections have an inhibitory effect on acetylcholine release for up to 10 months, with a recommended dose of 200 U. OnabotA treatment has a beneficial effect not only on urinary symptoms, but also on quality of life...
December 2016: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/28117329/outcome-comparison-of-different-approaches-to-self-intermittent-catheterization-in-neurogenic-patients-a-systematic-review
#16
REVIEW
S Shamout, X Biardeau, J Corcos, L Campeau
STUDY DESIGN: Systematic review (Preferred Reporting Items for Systematic Reviews and Meta-analysis (PRISMA); http://www.prisma-statement.org). OBJECTIVES: Different types of catheters and techniques have been described in the past three decades to identify the best self-intermittent catheterization method. Our aim is to review systematically the literature on the most appropriate material and technique to perform self-intermittent catheterization in the adult neurogenic population...
January 24, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28108025/viral-induced-suppression-of-self-reactive-t-cells-lessons-from-neurotropic-coronavirus-induced-demyelination
#17
REVIEW
Carine Savarin, Cornelia C Bergmann
Genetic and environmental factors, i.e. infections, have been proposed to contribute to disease induction and relapsing events in multiple sclerosis (MS), an autoimmune demyelinating disease of the central nervous system (CNS). While research has mainly focused on virus associated autoimmune activation, less is known about prevention of autoimmunity, especially following resolving infections associated with CNS tissue damage. This review discusses novel insights on control of self-reactive (SR) T cells activated during neurotropic coronavirus-induced demyelination...
January 11, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/28100574/clostridium-hastiforme-bacteraemia-secondary-to-pyometra-in-a-64-year-old-woman
#18
Matilde Ørum, David Fuglsang-Damgaard, Hans Linde Nielsen
The Gram-negative, rod-shaped, anaerobe bacteria Tissierella praeacuta was first described in 1908 by Tissier. However, during the past decade, Clostridium hastiforme has been recognised as a later synonym of T. praeacuta. C. hastiforme/T. praeacuta has only rarely been described in previous literature as a cause of human infection. We present here a case report of C. hastiforme/T. praeacuta bacteraemia secondary to pyometra in a 64-year-old woman with a history of multiple sclerosis and an intrauterine device inserted three decades earlier...
January 18, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28095729/impact-of-reactive-oxygen-species-generation-on-helicobacter-pylori-related-extragastric-diseases-a-hypothesis
#19
Jannis Kountouras, Marina Boziki, Stergios A Polyzos, Panagiotis Katsinelos, Emmanouel Gavalas, Christos Zeglinas, Dimitri Tzivras, Iordanis Romiopoulos, Nikolaos Giorgakis, Kyriaki Anastasiadou, Elizabeth Vardaka, Constantinos Kountouras, Evangelos Kazakos, Georgia Xiromerisiou, Efthimios Dardiotis, Georgia Deretzi
Helicobacter pylori (H. pylori) induces reactive oxygen species (ROS) production that contribute to pathogenesis of a variety of H. pylori-related gastric diseases, as shown in animal and human studies. Helicobacter pylori infection is also associated with variety of systemic extragastric diseases in which H. pylori-related ROS production might also be involved in the pathogenesis of these systemic conditions. We proposed that Hp-related ROS may play a crucial role in the pathophysiology of Hp-related systemic diseases including Alzheimer's disease, multiple sclerosis, glaucoma and other relative neurodegenerative diseases, thereby suggesting introduction of relative ROS scavengers as therapeutic strategies against these diseases which are among the leading causes of disability and are associated with a large public health global burden...
January 17, 2017: Free Radical Research
https://www.readbyqxmd.com/read/28065579/roles-of-regulatory-t-cells-and-il-10-in-virus-induced-demyelination
#20
REVIEW
Stanley Perlman, Jingxian Zhao
Neurotropic viruses are important causes of morbidity and mortality in human populations. Some of these viruses preferentially infect oligodendrocytes in the white matter, causing either direct lysis of infected cells, or more commonly myelin damage as a consequence of the host immune response to the virus. Virus-induced demyelination has similarities to the human disease multiple sclerosis. To study this disease process in experimental animals, mice are infected, most commonly, with neurotropic strains of mouse hepatitis virus, a coronavirus or Theiler's murine encephalomyelitis, a picornavirus...
January 4, 2017: Journal of Neuroimmunology
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