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Multiple sclerosis, vitamin d

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https://www.readbyqxmd.com/read/28904091/25-hydroxyvitamin-d-deficiency-and-risk-of-ms-among-women-in-the-finnish-maternity-cohort
#1
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/28904085/preventing-multiple-sclerosis-to-take-vitamin-d-or-not-to-take-vitamin-d
#2
EDITORIAL
Ruth Ann Marrie, Christopher A Beck
No abstract text is available yet for this article.
September 13, 2017: Neurology
https://www.readbyqxmd.com/read/28887146/analysing-the-effect-of-multiple-sclerosis-on-vitamin-d-related-biochemical-markers-of-bone-remodelling
#3
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/28843454/pediatric-multiple-sclerosis-genes-environment-and-a-comprehensive-therapeutic-approach
#4
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/28842447/no-association-between-dietary-sodium-intake-and-the-risk-of-multiple-sclerosis
#5
Marianna Cortese, Changzheng Yuan, Tanuja Chitnis, Alberto Ascherio, Kassandra L Munger
OBJECTIVE: To prospectively investigate the association between dietary sodium intake and multiple sclerosis (MS) risk. METHODS: In this cohort study, we assessed dietary sodium intake by a validated food frequency questionnaire administered every 4 years to 80,920 nurses in the Nurses' Health Study (NHS) (1984-2002) and to 94,511 in the Nurses' Health Study II (NHSII) (1991-2007), and calibrated it using data from a validation study. There were 479 new MS cases during follow-up...
August 25, 2017: Neurology
https://www.readbyqxmd.com/read/28836398/vdr-and-cyp24a1-expression-analysis-in-iranian-relapsing-remitting-multiple-sclerosis-patients
#6
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/28828221/vitamin-d-supplementation-differentially-affects-seasonal-multiple-sclerosis-disease-activity
#7
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/28818673/1-25-dihydroxyvitamin-d3-induces-brain-proteomic-changes-in-cuprizone-mice-during-remyelination-involving-calcium-proteins
#8
Eystein Oveland, Agnes Nystad, Frode Berven, Kjell-Morten Myhr, Øivind Torkildsen, Stig Wergeland
Dietary supplementation of vitamin D is commonly recommended to patients with multiple sclerosis. We recently found that high-dose of the hormonally active 1,25-dihydroxyvitamin-D3 (1,25D) promotes myelin repair in the cuprizone model for de- and remyelination. In the present study, we quantified 5062 proteins, of which 125 were differentially regulated in brain tissue from 1,25D treated mice during remyelination, compared to placebo. Proteins upregulated in the early remyelination phase were involved in calcium binding, e...
August 14, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/28780323/vitamin-d-receptor-gene-polymorphisms-and-the-risk-of-multiple-sclerosis-an-updated-meta-analysis
#9
Xiao-Long Chen, Ming-Liang Zhang, Lin Zhu, Meng-Le Peng, Fang-Zhou Liu, Guang-Xian Zhang, Li-Mei Wang, Jie Zhao
BACKGROUND: The association between vitamin D receptor (VDR) gene polymorphisms and multiple sclerosis (MS) has been extensively studied, but results were controversial. METHODS: This meta-analysis aimed to confirm whether VDR gene polymorphisms were associated with MS. Meta-analysis on the association between MS and VDR ApaI, BsmI, TaqI and FokI polymorphisms were conducted using allelic contrast, recessive, homozygotes and dominant models. Data were extracted by standardized forms and odds ratios (OR) with 95% confidence intervals (CI) were calculated using the random effects model if the results were heterogeneous...
August 3, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28757204/low-frequency-synonymous-coding-variation-in-cyp2r1-has-large-effects-on-vitamin-d-levels-and-risk-of-multiple-sclerosis
#10
Despoina Manousaki, Tom Dudding, Simon Haworth, Yi-Hsiang Hsu, Ching-Ti Liu, Carolina Medina-Gómez, Trudy Voortman, Nathalie van der Velde, Håkan Melhus, Cassianne Robinson-Cohen, Diana L Cousminer, Maria Nethander, Liesbeth Vandenput, Raymond Noordam, Vincenzo Forgetta, Celia M T Greenwood, Mary L Biggs, Bruce M Psaty, Jerome I Rotter, Babette S Zemel, Jonathan A Mitchell, Bruce Taylor, Mattias Lorentzon, Magnus Karlsson, Vincent V W Jaddoe, Henning Tiemeier, Natalia Campos-Obando, Oscar H Franco, Andre G Utterlinden, Linda Broer, Natasja M van Schoor, Annelies C Ham, M Arfan Ikram, David Karasik, Renée de Mutsert, Frits R Rosendaal, Martin den Heijer, Thomas J Wang, Lars Lind, Eric S Orwoll, Dennis O Mook-Kanamori, Karl Michaëlsson, Bryan Kestenbaum, Claes Ohlsson, Dan Mellström, Lisette C P G M de Groot, Struan F A Grant, Douglas P Kiel, M Carola Zillikens, Fernando Rivadeneira, Stephen Sawcer, Nicholas J Timpson, J Brent Richards
Vitamin D insufficiency is common, correctable, and influenced by genetic factors, and it has been associated with risk of several diseases. We sought to identify low-frequency genetic variants that strongly increase the risk of vitamin D insufficiency and tested their effect on risk of multiple sclerosis, a disease influenced by low vitamin D concentrations. We used whole-genome sequencing data from 2,619 individuals through the UK10K program and deep-imputation data from 39,655 individuals genotyped genome-wide...
August 3, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28754822/epigenetic-research-in-multiple-sclerosis-progress-challenges-and-opportunities
#11
Galina Zheleznyakova, Eliane Piket, Francesco Marabita, Majid Pahlevan Kakhki, Ewoud Ewing, Sabrina Ruhrmann, Maria Needhamsen, Maja Jagodic, Lara Kular
Multiple Sclerosis (MS) is a chronic inflammatory and demyelinating disease of the central nervous system. MS likely results from a complex interplay between predisposing causal gene variants (the strongest influence coming from HLA class II locus) and environmental risk factors such as smoking, infectious mononucleosis and lack of sun exposure/vitamin D. However, little is known about the mechanisms underlying MS development and progression. Moreover, the clinical heterogeneity and variable response to treatment represent additional challenges to a comprehensive understanding and efficient treatment of disease...
July 28, 2017: Physiological Genomics
https://www.readbyqxmd.com/read/28739666/author-response-neonatal-vitamin-d-status-and-risk-of-multiple-sclerosis-a-population-based-case-control-study
#12
Nete Munk Nielsen, Kassandra L Munger, Egon Stenager, Alberto Ascherio
No abstract text is available yet for this article.
July 25, 2017: Neurology
https://www.readbyqxmd.com/read/28739665/letter-re-neonatal-vitamin-d-status-and-risk-of-multiple-sclerosis-a-population-based-case-control-study
#13
Zhiwei Xia, Quan Cheng, Jing Li
No abstract text is available yet for this article.
July 25, 2017: Neurology
https://www.readbyqxmd.com/read/28739664/letter-re-neonatal-vitamin-d-status-and-risk-of-multiple-sclerosis-a-population-based-case-control-study
#14
Amin Zarghami
No abstract text is available yet for this article.
July 25, 2017: Neurology
https://www.readbyqxmd.com/read/28731372/exploring-the-effect-of-vitamin-d3-supplementation-on-the-anti-ebv-antibody-response-in-relapsing-remitting-multiple-sclerosis
#15
Linda Rolf, Anne-Hilde Muris, Amandine Mathias, Renaud Du Pasquier, Inga Koneczny, Giulio Disanto, Jens Kuhle, Sreeram Ramagopalan, Jan Damoiseaux, Joost Smolders, Raymond Hupperts
BACKGROUND: Epstein-Barr virus (EBV) infection and vitamin D insufficiency are potentially interacting risk factors for multiple sclerosis (MS). OBJECTIVES: To investigate the effect of high-dose vitamin D3 supplements on antibody levels against the EBV nuclear antigen-1 (EBNA-1) in patients with relapsing-remitting multiple sclerosis (RRMS) and to explore any underlying mechanism affecting anti-EBNA-1 antibody levels. METHODS: This study utilized blood samples from a randomized controlled trial in RRMS patients receiving either vitamin D3 (14,000 IU/day; n = 30) or placebo ( n = 23) over 48 weeks...
July 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28694135/characteristics-of-pediatric-multiple-sclerosis-the-turkish-pediatric-multiple-sclerosis-database
#16
Ünsal Yılmaz, Banu Anlar, Kıvılcım Gücüyener
OBJECTIVE: To document the clinical and paraclinical features of pediatric multiple sclerosis (MS) in Turkey. METHODS: Data of MS patients with onset before age 18 years (n = 193) were collected from 27 pediatric neurology centers throughout Turkey. Earlier-onset (<12 years) and later-onset (≥12 years) groups were compared. RESULTS: There were 123 (63.7%) girls and 70 (36.3%) boys aged 4-17 years, median 14 years at disease onset. Family history of MS was 6...
June 29, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28671487/environmental-modifiable-risk-factors-for-multiple-sclerosis-report-from-the-2016-ectrims-focused-workshop
#17
Maria Pia Amato, Tobias Derfuss, Bernard Hemmer, Roland Liblau, Xavier Montalban, Per Soelberg Sørensen, David H Miller
Multiple sclerosis (MS) is an inflammatory and neurodegenerative demyelinating disease of the central nervous system (CNS), most likely autoimmune in origin, usually beginning in early adulthood. The aetiology of the disease is not well understood; it is viewed currently as a multifactorial disease which results from complex interactions between genetic predisposition and environmental factors, of which a few are potentially modifiable. Improving our understanding of these factors can lead to new and more effective approaches to patient counselling and, possibly, prevention and management of the disease...
January 1, 2017: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/28624334/seasonality-and-autoimmune-diseases-the-contribution-of-the-four-seasons-to-the-mosaic-of-autoimmunity
#18
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)...
August 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28619429/vitamin-d-and-multiple-sclerosis-an-update
#19
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/28617989/1-25-dihydroxyvitamin-d3-induced-dendritic-cells-suppress-experimental-autoimmune-encephalomyelitis-by-increasing-proportions-of-the-regulatory-lymphocytes-and-reducing-th1-th17-cells
#20
Zhongxiang Xie, Jingtao Chen, Chao Zheng, Jing Wu, Yun Cheng, Shan Zhu, Chenhong Lin, Qingqing Cao, Jie Zhu, Tao Jin
Dendritic cells (DCs), a bridge of innate and adaptive immune responses, play a key role in the development of multiple sclerosis (MS) and experimental autoimmune encephalomyelitis (EAE), an animal model for MS. Administration of tolerogenic DCs has been used as an immunotherapy in the autoimmune diseases. Deficiency of vitamin D is an environmental risk factor of MS. In this study, we induced tolerogenic DCs by 1,25-dihydroxyvitamin D3 (1,25(OH)2 D3 ) and adoptive transferred the tolerogenic DCs (VD3-DCs) into EAE mice...
June 15, 2017: Immunology
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