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multiple sclerosis risk factors

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https://www.readbyqxmd.com/read/28921467/mir-155-dysregulation-and-therapeutic-intervention-in-multiple-sclerosis
#1
Claire E McCoy
microRNAs play a fundamental role in the immune system. One particular microRNA, miR-155 plays a critical role in hematopoietic cell development and tightly regulates innate and adaptive immune responses in response to infection. However, its dysregulation, more specifically its overexpression, is closely associated with various inflammatory disorders. The purpose of this review is to consolidate how miR-155 underpins a variety of processes that contribute to the pathology of multiple sclerosis (MS). In particular, the impact of miR-155 is discussed with respect to human pathology and animal models...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28920765/medication-usage-and-falls-in-people-with-multiple-sclerosis
#2
Laura Comber, Gillian Quinn, Chris McGuigan, Rose Galvin, Susan Coote
There is a need to identify modifiable risk factors for falls in people with multiple sclerosis (MS) to enable the design of successful falls prevention interventions. There is conflicting evidence regarding the association between medication use and occurrence of falls in MS. A total of 101 people with MS had medications classified using the Anatomical Therapeutic Classification system and number of falls prospectively monitored for 3 months. No association was noted between number of medications and falls...
September 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28913726/diagnosis-and-treatment-of-progressive-multifocal-leukoencephalopathy-associated-with-multiple-sclerosis-therapies
#3
REVIEW
Eric M L Williamson, Joseph R Berger
Progressive multifocal leukoencephalopathy (PML) is a rare, but serious, complication encountered in patients treated with a select number of disease-modifying therapies (DMTs) utilized in treating multiple sclerosis (MS). PML results from a viral infection in the brain for which the only demonstrated effective therapy is restoring the perturbed immune system-typically achieved in the patient with MS by removing the offending therapeutic agent or, in the case of HIV-associated PML, treatment with highly active antiretroviral therapies...
September 14, 2017: Neurotherapeutics: the Journal of the American Society for Experimental NeuroTherapeutics
https://www.readbyqxmd.com/read/28904554/plants-derived-neuroprotective-agents-cutting-the-cycle-of-cell-death-through-multiple-mechanisms
#4
REVIEW
Taiwo Olayemi Elufioye, Tomayo Ireti Berida, Solomon Habtemariam
Neuroprotection is the preservation of the structure and function of neurons from insults arising from cellular injuries induced by a variety of agents or neurodegenerative diseases (NDs). The various NDs including Alzheimer's, Parkinson's, and Huntington's diseases as well as amyotropic lateral sclerosis affect millions of people around the world with the main risk factor being advancing age. Each of these diseases affects specific neurons and/or regions in the brain and involves characteristic pathological and molecular features...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28904091/25-hydroxyvitamin-d-deficiency-and-risk-of-ms-among-women-in-the-finnish-maternity-cohort
#5
Kassandra L Munger, Kira Hongell, Julia Åivo, Merja Soilu-Hänninen, Heljä-Marja Surcel, Alberto Ascherio
OBJECTIVE: To determine whether and to what extent vitamin D deficiency is associated with multiple sclerosis (MS) risk. METHODS: We conducted a prospective nested case-control study among women in the Finnish Maternity Cohort (FMC). The FMC had 1.8 million stored serum samples taken during the pregnancies of over 800,000 women at the time of this study. Through linkages with hospital and prescription registries, we identified 1,092 women with MS diagnosed between 1983 and 2009 with at least 1 serum sample collected prior to date of MS diagnosis; ≥2 serum samples were available for 511 cases...
September 13, 2017: Neurology
https://www.readbyqxmd.com/read/28901164/falls-in-people-with-multiple-sclerosis-experiences-of-115-fall-situations
#6
Anna Carling, Anette Forsberg, Ylva Nilsagård
OBJECTIVES: The aim was to describe falls and the perceived causes, experienced by people with multiple sclerosis shortly after falling. DESIGN: A qualitative study using content analysis and quantitative data to illustrate where and why people report falls most commonly. Semi-structured telephone interviews were performed. Interviews were conducted shortly (0-10 days) after a fall. SUBJECTS: In all, 67 informants who had reported at least one fall during the previous three-month period and who used a walking aid participated...
September 1, 2017: Clinical Rehabilitation
https://www.readbyqxmd.com/read/28900354/knowledge-attitudes-beliefs-and-practices-of-occupational-physicians-towards-seasonal-influenza-vaccination-a-cross-sectional-study-from-north-eastern-italy
#7
REVIEW
M Riccò, S Cattani, F Casagranda, G Gualerzi, C Signorelli
INTRODUCTION: The present study aims to characterize personal attitudes and knowledge of a sample of Italian Occupational Physicians (OPh) towards Seasonal Influenza Vaccine (SIV) in healthcare workers (HCWs). METHODS: In total, 92 OPh (42.4% males, 57.6% females, mean age of 47.3 ± 10.4 years, 50 specialists in Occupational Medicine, 42 specialists in Hygiene and Public Health) were asked about their attitudes towards influenza vaccine, their general knowledge of vaccine practice, their propensity towards vaccines and, eventually, their risk perception about the influenza and influenza vaccine was investigated...
June 2017: Journal of Preventive Medicine and Hygiene
https://www.readbyqxmd.com/read/28893312/the-validity-and-reliability-of-the-four-square-step-test-in-different-adult-populations-a-systematic-review
#8
Martha Moore, Karen Barker
BACKGROUND: The four square step test (FSST) was first validated in healthy older adults to provide a measure of dynamic standing balance and mobility. The FSST has since been used in a variety of patient populations. The purpose of this systematic review is to determine the validity and reliability of the FSST in these different adult patient populations. METHODS: The literature search was conducted to highlight all the studies that measured validity and reliability of the FSST...
September 11, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28887146/analysing-the-effect-of-multiple-sclerosis-on-vitamin-d-related-biochemical-markers-of-bone-remodelling
#9
Malachi J McKenna, Barbara Murray, Roisin Lonergan, Ricardo Segurado, Niall Tubridy, Mark T Kilbane
The Irish population is at risk of vitamin D deficiency during the winter months, but the secular trend over the past 40 years is for marked improvement. Multiple sclerosis (MS) is common in Ireland with a latitudinal pattern favouring highest incidence in northern regions; MS is linked strongly with vitamin D status as a causal factor. We sought firstly to study the relationship between vitamin D status and vitamin D-related bone biochemistry, and secondly to evaluate if MS had an independent effect on vitamin D related markers of bone remodelling...
September 5, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28879451/prognostic-factors-and-disease-course-in-aquaporin-4-antibody-positive-chinese-patients-with-acute-optic-neuritis
#10
Hao Kang, Tingjun Chen, Hongyang Li, Quangang Xu, Shanshan Cao, Shihui Wei
The objective is to assess the frequency of AQP4-Ab in Chinese patients with optic neuritis (ON) and to investigate the prognostic implications of AQP4-Ab seropositivity in such patients. The presence of aquaporin-4 (AQP4) antibodies in human AQP4-transfected cells was determined by indirect immunofluorescence, and the diagnostic and prognostic relevance of AQP4 antibodies in 215 Chinese patients with optic neuritis was evaluated. The patients were enrolled from the Chinese People's Liberation Army General Hospital (PLAGH) and followed up to 1-228 months...
September 6, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28879412/the-sequence-of-disease-modifying-therapies-in-relapsing-multiple-sclerosis-safety-and-immunologic-considerations
#11
REVIEW
Gabriel Pardo, David E Jones
The treatment landscape for relapsing forms of multiple sclerosis (RMS) has expanded considerably over the last 10 years with the approval of multiple new disease-modifying therapies (DMTs), and others in late-stage clinical development. All DMTs for RMS are believed to reduce central nervous system immune-mediated inflammatory processes, which translate into demonstrable improvement in clinical and radiologic outcomes. However, some DMTs are associated with long-lasting effects on the immune system and/or serious adverse events, both of which may complicate the use of subsequent therapies...
September 6, 2017: Journal of Neurology
https://www.readbyqxmd.com/read/28861122/the-role-of-natalizumab-in-the-treatment-of-multiple-sclerosis-benefits-and-risks
#12
REVIEW
Barry A Singer
Natalizumab, a monoclonal antibody that blocks lymphocyte infiltration in the central nervous system, is a valuable tool in the treatment of relapsing forms of multiple sclerosis (MS). In a phase III clinical trial comparing natalizumab with placebo over 2 years, natalizumab reduced annualized relapse rate by 68%, 12-week confirmed disability progression by 42%, and reduced contrast-enhancing lesions by 92%. In post hoc analyses, natalizumab treatment was associated with 37% of patients achieving no evidence of disease activity (versus 7% on placebo) and 30% achieving sustained disability improvement (versus 19% on placebo)...
September 2017: Therapeutic Advances in Neurological Disorders
https://www.readbyqxmd.com/read/28860328/vascular-pathology-in-multiple-sclerosis-reframing-pathogenesis-around-the-blood-brain-barrier
#13
REVIEW
Jonathan I Spencer, Jack S Bell, Gabriele C DeLuca
Blood-brain barrier (BBB) disruption has long been recognised as an important early feature of multiple sclerosis (MS) pathology. Traditionally, this has been seen as a by-product of the myelin-specific immune response. Here, we consider whether vascular changes instead play a central role in disease pathogenesis, rather than representing a secondary effect of neuroinflammation or neurodegeneration. Importantly, this is not necessarily mutually exclusive from current hypotheses. Vascular pathology in a genetically predisposed individual, influenced by environmental factors such as pathogens, hypovitaminosis D and smoking, may be a critical initiator of a series of events including hypoxia, protein deposition and immune cell egress that allows the development of a CNS-specific immune response and the classical pathological and clinical hallmarks of disease...
August 31, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/28855411/epstein-barr-virus-cytomegalovirus-and-multiple-sclerosis-susceptibility-a-multiethnic-study
#14
Annette Langer-Gould, Jun Wu, Robyn Lucas, Jessica Smith, Edlin Gonzales, Lilyana Amezcua, Samantha Haraszti, Lie Hong Chen, Hong Quach, Judith A James, Lisa F Barcellos, Anny H Xiang
OBJECTIVE: To determine whether Epstein-Barr virus (EBV) or cytomegalovirus (CMV) seropositivity is associated with multiple sclerosis (MS) in blacks and Hispanics and to what extent measures of the hygiene hypothesis or breastfeeding could explain these findings. EBV and CMV have been associated with MS risk in whites, and the timing and frequency of both viruses vary by factors implicated in the hygiene hypothesis. METHODS: Incident cases of MS or its precursor, clinically isolated syndrome (CIS), and matched controls (blacks, 111 cases/128 controls; Hispanics, 173/187; whites, 235/256) were recruited from the membership of Kaiser Permanente Southern California...
August 30, 2017: Neurology
https://www.readbyqxmd.com/read/28843454/pediatric-multiple-sclerosis-genes-environment-and-a-comprehensive-therapeutic-approach
#15
REVIEW
Ryan Cappa, Liana Theroux, J Nicholas Brenton
BACKGROUND: Pediatric multiple sclerosis is an increasingly recognized and studied disorder that affects 3%-10% of all patients. The risk for pediatric multiple sclerosis is thought to be secondary to a complex interplay between environmental and genetic risk factors. MAIN FINDINGS: Environmental exposures, including sunlight (ultraviolet radiation, vitamin D levels), infections (Epstein-Barr virus), passive smoking, and obesity, have been identified as potential risk factors in youth...
July 13, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28838350/molecular-identification-of-drug-resistant-mutations-to-tetracycline-in-mycoplasma-spp-isolated-from-patients-with-multiple-sclerosis
#16
M Naghib, B Kheirkhah, R Mohebbi, L Sadeg
Bacterial infections play a significant role in causing or intensifying the attacks in MS and there are reports based on the interference of Mycoplasma with a global distribution. Mycoplasma causes autoimmune attacks by imitating the host cell membrane, which is a way of resistance to antibiotics. The purpose of this study was to evaluate the molecular identification of mutations causing resistance to tetracycline in Mycoplasma isolated from MS patients. A total number of 32 cerebrospinal fluid samples and 48 urinal fluid samples were collected from MS patients...
August 15, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28836398/vdr-and-cyp24a1-expression-analysis-in-iranian-relapsing-remitting-multiple-sclerosis-patients
#17
Hashem Sadeghi, Mohammad Taheri, Elham Sajadi, Abolfazl Movafagh, Shahram Arsang Jang, Arezou Sayad
OBJECTIVES: Multiple sclerosis (MS) is a common disease of the central nervous system.This disease may be initiated by either vitamin deficiency or triggered by abnormality in CYP24A1 and vitamin D receptor. MATERIALS AND METHODS: In this case-control study, the expression of genes encoding vitamin D receptor (VDR) and CYP24A1 in relapsing-remitting MS (RR-MS) patients was compared with normal individuals in the Iranian population. RNA from whole blood of 50 RR-MS patients (HLA-DRB1*15-negative and responders to interferonbeta with a normal vitamin D level) and 50 normal controls was extracted...
October 2017: Cell Journal
https://www.readbyqxmd.com/read/28835464/mapping-and-predicting-mortality-from-systemic-sclerosis
#18
Muriel Elhai, Christophe Meune, Marouane Boubaya, Jérôme Avouac, Eric Hachulla, Alexandra Balbir-Gurman, Gabriela Riemekasten, Paolo Airò, Beatriz Joven, Serena Vettori, Franco Cozzi, Susanne Ullman, László Czirják, Mohammed Tikly, Ulf Müller-Ladner, Paola Caramaschi, Oliver Distler, Florenzo Iannone, Lidia P Ananieva, Roger Hesselstrand, Radim Becvar, Armando Gabrielli, Nemanja Damjanov, Maria J Salvador, Valeria Riccieri, Carina Mihai, Gabriella Szücs, Ulrich A Walker, Nicolas Hunzelmann, Duska Martinovic, Vanessa Smith, Carolina de Souza Müller, Carlo Maurizio Montecucco, Daniela Opris, Francesca Ingegnoli, Panayiotis G Vlachoyiannopoulos, Bojana Stamenkovic, Edoardo Rosato, Stefan Heitmann, Jörg H W Distler, Thierry Zenone, Matthias Seidel, Alessandra Vacca, Ellen De Langhe, Srdan Novak, Maurizio Cutolo, Luc Mouthon, Jörg Henes, Carlo Chizzolini, Carlos Alberto von Mühlen, Kamal Solanki, Simona Rednic, Lisa Stamp, Branimir Anic, Vera Ortiz Santamaria, Maria De Santis, Sule Yavuz, Walter Alberto Sifuentes-Giraldo, Emmanuel Chatelus, Jiri Stork, Jacob van Laar, Esthela Loyo, Paloma García de la Peña Lefebvre, Kilian Eyerich, Vanesa Cosentino, Juan Jose Alegre-Sancho, Otylia Kowal-Bielecka, Grégoire Rey, Marco Matucci-Cerinic, Yannick Allanore
OBJECTIVES: To determine the causes of death and risk factors in systemic sclerosis (SSc). METHODS: Between 2000 and 2011, we examined the death certificates of all French patients with SSc to determine causes of death. Then we examined causes of death and developed a score associated with all-cause mortality from the international European Scleroderma Trials and Research (EUSTAR) database. Candidate prognostic factors were tested by Cox proportional hazards regression model by single variable analysis, followed by a multiple variable model stratified by centres...
August 23, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28828221/vitamin-d-supplementation-differentially-affects-seasonal-multiple-sclerosis-disease-activity
#19
Andrei Miclea, Marius Miclea, Maximilian Pistor, Andreas Hoepner, Andrew Chan, Robert Hoepner
OBJECTIVES: Low ultraviolet-B (UVB) radiation causes hypovitaminosis D, which is a known risk factor for multiple sclerosis (MS) and associated with MS disease activity. Our objective is to test whether vitamin D supplementation is most effective in lowering disease activity during the period of the year with low UVB radiation and consequently low serum 25-hydroxyvitamin D3 (25(OH)D3) concentration. METHODS: Retrospective analysis of medical records from our outpatient department identified 40 MS patients with available data of at least 6 months before and during oral vitamin D supplementation...
August 2017: Brain and Behavior
https://www.readbyqxmd.com/read/28812249/long-term-disability-and-progression-in-spinal-onset-multiple-sclerosis
#20
Bedile Irem Tiftikcioglu, Irem Ilgezdi, Yasar Zorlu, Ufuk Sener, Figen Tokucoglu
The aim of this study is to investigate the long-term effects of the initial spinal cord (SC) involvement in MS patients. In this retrospective, single-center study, 824 patients with definite MS were screened. A total of 348 patients were excluded for ambiguous documentation of the initial relapse, pediatric onset, diagnosis of primary progressive disease, irregular assessments or visits causing doubt on the onset of progression time, and clinical follow-up duration less than 12 months. Eventually, 476 MS patients were included...
August 10, 2017: Acta Neurologica Belgica
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