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Multiple sclerosis, vitamin d

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https://www.readbyqxmd.com/read/28099554/no-correlation-was-observed-between-vitamin-d-levels-and-disability-of-patients-with-multiple-sclerosis-between-latitudes-18%C3%A2-and-30%C3%A2-south
#1
Yara Dadalti Fragoso, Tarso Adoni, Soniza Vieira Alves-Leon, Samira L Apostolos-Pereira, Walter Oleschko Arruda, Joseph B Bidin Brooks, Henrique S Rodrigues Cal, Carlos A Albuquerque Damasceno, Paulo Diniz Gama, Marcus V Magno Goncalves, Carlos A da Silva de Jesus, Suzana C Nunes Machado, Letícia Fezer Mansur, Andre P da Cunha Matta, Maria Fernanda Mendes, Rogerio Rizo Morales, Adaucto Wanderley da Nobrega-Jr, Monica K Fiuza Parolin, Mario Pietro Peres, Marlise de Castro Ribeiro, Heloisa Helena Ruocco, Simone Scherpenhuijzen, Fabio Siquinelli, Patrick N Stoney, Daniel Lima Varela, Audred Cristina Biondo Eboni, Caroline Vieira Spessotto, Elisa Teixeira da Rocha, Pamela Emanuele Lacerda
Objective: Vitamin D has taken center stage in research and treatment of multiple sclerosis (MS). The objective of the present study was to assess the serum vitamin D levels of a large population of patients with MS and controls living in a restricted tropical area. Methods: Data from 535 patients with MS and 350 control subjects were obtained from 14 cities around the Tropic of Capricorn. Results: The mean serum 25-OH vitamin D level was 26...
January 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28063629/the-autoimmune-risk-gene-zmiz1-is-a-vitamin-d-responsive-marker-of-a-molecular-phenotype-of-multiple-sclerosis
#2
N L Fewings, P N Gatt, F C McKay, G P Parnell, S D Schibeci, J Edwards, M A Basuki, A Goldinger, M J Fabis-Pedrini, A G Kermode, C P Manrique, J L McCauley, D Nickles, S E Baranzini, T Burke, S Vucic, G J Stewart, D R Booth
Multiple Sclerosis (MS) is a neurological condition driven in part by immune cells from the peripheral circulation, the targets for current successful therapies. The autoimmune and MS risk gene ZMIZ1 is underexpressed in blood in people with MS. We show that, from three independent sets of transcriptomic data, expression of ZMIZ1 is tightly correlated with that of hundreds of other genes. Further we show expression is partially heritable (heritability 0.26), relatively stable over time, predominantly in plasmacytoid dendritic cells and non-classical monocytes, and that levels of ZMIZ1 protein expression are reduced in MS...
January 4, 2017: Journal of Autoimmunity
https://www.readbyqxmd.com/read/28063332/metabolomics-a-potential-way-to-know-the-role-of-vitamin-d-on-multiple-sclerosis
#3
REVIEW
Diego Luque-Córdoba, María D Luque de Castro
The literature about the influence of vitamin D on multiple sclerosis (MS) is very controversial, possibly as a result of the way through which the research on the subject has been conducted. The studies developed so far have been focused exclusively on gene expression: the effect of a given vitamin D metabolite on target receptors. The influence of the vitamin D status (either natural or after supplementation) on MS has been studied by measurement of the 25 monohydroxylated metabolite (also known as circulating form), despite the 1,25 dihydroxylated metabolite is considered the active form...
December 29, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28056806/suppression-of-experimental-autoimmune-encephalomyelitis-by-ultraviolet-light-is-not-mediated-by-isomerization-of-urocanic-acid
#4
Amy A Irving, Steven J Marling, Lori A Plum, Hector F DeLuca
BACKGROUND: Ultraviolet B irradiation confers strong resistance against experimental autoimmune encephalomyelitis, a model of multiple sclerosis. This protection by ultraviolet B is independent of vitamin D production but causes isomerization of urocanic acid, a naturally occurring immunosuppressant. METHODS: To determine whether UCA isomerization from trans to cis is responsible for the protection against experimental autoimmune encephalomyelitis afforded by ultraviolet B, trans- or cis-urocanic acid was administered to animals and their disease progression was monitored...
January 5, 2017: BMC Neuroscience
https://www.readbyqxmd.com/read/27966076/the-level-of-testosterone-vitamin-d-and-irregular-menstruation-more-important-than-omega-3-in-non-symptomatic-women-will-define-the-fate-of-multiple-scleroses-in-future
#5
Shima Tavakol, Sahar Shakibapour, Sepideh Arbabi Bidgoli
Multiple sclerosis is one of the most salient degenerative disorders of CNS with dysregulated immune process that resulted in axonal damage and demyelination. In the present investigation, the serum level of testosterone was assessed in women who were struggling with multiple sclerosis (MS). Also, the level of omega-3, vitamin D, and the irregular menstruation in women 5 years before the onset MS symptoms were surveyed. Although the levels of omega-3 and vitamin D in women MS patients were non-significant and significantly less than the healthy ones, they were significantly less in the whole population of MS patients...
December 13, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27942349/the-risks-and-benefits-of-sun-exposure-2016
#6
REVIEW
David G Hoel, Marianne Berwick, Frank R de Gruijl, Michael F Holick
Public health authorities in the United States are recommending that men, women and children reduce their exposure to sunlight, based on concerns that this exposure will promote skin cancer. On the other hand, data show that increasing numbers of Americans suffer from vitamin D deficiencies and serious health problems caused by insufficient sun exposure. The body of science concerning the benefits of moderate sun exposure is growing rapidly, and is causing a different perception of sun/UV as it relates to human health...
January 2016: Dermato-endocrinology
https://www.readbyqxmd.com/read/27942348/estimated-economic-benefit-of-increasing-25-hydroxyvitamin-d-concentrations-of-canadians-to-or-above-100%C3%A2-nmol-l
#7
REVIEW
William B Grant, Susan J Whiting, Gerry K Schwalfenberg, Stephen J Genuis, Samantha M Kimball
Mounting evidence from observational and clinical trials indicates that optimal vitamin D reduces the risk of many diseases. We used observational studies and recent data on 25-hydroxyvitamin D [25(OH)D] concentrations of Canadians from Cycle 3 of the Canadian Health Measures Survey to estimate the reduction in disease incidence, mortality rates, and the total economic burden (direct plus indirect) of disease if 25(OH)D concentrations of all Canadians were raised to or above 100 nmol/L. Recently, the mean 25(OH)D concentration of Canadians varied depending on age and season (51-69 nmol/L), with an overall mean of 61 nmol/L...
January 2016: Dermato-endocrinology
https://www.readbyqxmd.com/read/27934854/interactions-between-genetic-lifestyle-and-environmental-risk-factors-for-multiple-sclerosis
#8
REVIEW
Tomas Olsson, Lisa F Barcellos, Lars Alfredsson
Genetic predisposition to multiple sclerosis (MS) only explains a fraction of the disease risk; lifestyle and environmental factors are key contributors to the risk of MS. Importantly, these nongenetic factors can influence pathogenetic pathways, and some of them can be modified. Besides established MS-associated risk factors - high latitude, female sex, smoking, low vitamin D levels caused by insufficient sun exposure and/or dietary intake, and Epstein-Barr virus (EBV) infection - strong evidence now supports obesity during adolescence as a factor increasing MS risk...
January 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/27919484/vitamin-d-supplementation-reduces-relapse-rate-in-relapsing-remitting-multiple-sclerosis-patients-treated-with-natalizumab
#9
Julie Hejgaard Laursen, Helle Bach Søndergaard, Per Soelberg Sørensen, Finn Sellebjerg, Annette Bang Oturai
BACKGROUND: Vitamin D insufficiency is common among multiple sclerosis patients, and hypovitaminosis D has been associated with multiple sclerosis (MS) risk and disease activity. OBJECTIVE: To investigate how recommendations on vitamin D3 supplements affect 25-hydroxyvitamin D (25(OH)D) levels in patients with relapsing-remitting MS (RRMS) and to examine the clinical effects associated with changes in 25(OH)D levels. METHODS: In this prospective cohort study, baseline blood samples were collected from 170 natalizumab-treated RRMS patients during winter 2009-2010 and were repeated the following winter...
November 2016: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/27910985/uvb-radiation-vitamin-d-and-multiple-sclerosis
#10
H F DeLuca, L Plum
Acheson et al. (1960) observed an inverse relationship between sunlight exposure and the incidence of Multiple Sclerosis (MS). This led to the suggestion that increased levels of vitamin D caused by sunlight in some way suppresses MS. Further, super physiological doses of the metabolically active metabolite of vitamin D, i.e. 1α,25 dihydroxy vitamin D suppresses the animal model of MS i.e. experimental autoimmune encephalomyelitis (EAE). However, this response was accompanied by hypercalcemia. Hypercalcemia itself can suppress EAE...
December 2, 2016: Photochemical & Photobiological Sciences
https://www.readbyqxmd.com/read/27904983/vdbp-cyp27b1-and-25-hydroxyvitamin-d-gene-polymorphism-analyses-in-a-group-of-sicilian-multiple-sclerosis-patients
#11
L Agnello, C Scazzone, B Lo Sasso, C Bellia, G Bivona, S Realmuto, F Brighina, R Schillaci, P Ragonese, G Salemi, Marcello Ciaccio
Multiple sclerosis (MS) is a chronic demyelinating disease of central nervous system regarded as one of the most common causes of neurological disability in young adults. The exact etiology of MS is not yet known, although epidemiological data indicate that both genetic susceptibility and environmental exposure are involved. A poor vitamin D status has been proposed as the most attractive environmental factor. Several evidence have highlighted the importance of mutations in vitamin D-regulating genes for vitamin D status...
November 30, 2016: Biochemical Genetics
https://www.readbyqxmd.com/read/27903815/neonatal-vitamin-d-status-and-risk-of-multiple-sclerosis-a-population-based-case-control-study
#12
Nete Munk Nielsen, Kassandra L Munger, Nils Koch-Henriksen, David M Hougaard, Melinda Magyari, Kristian T Jørgensen, Marika Lundqvist, Jacob Simonsen, Tine Jess, Arieh Cohen, Egon Stenager, Alberto Ascherio
OBJECTIVE: As previous research has suggested that exposure to vitamin D insufficiency in utero may have relevance for the risk of multiple sclerosis (MS), we aimed to examine the direct association between level of neonatal vitamin D and risk of MS. METHODS: We carried out a matched case-control study. Dried blood spots samples (DBSS) belonging to 521 patients with MS were identified in the Danish Newborn Screening Biobank. For every patient with MS, 1-2 controls with the same sex and birth date were retrieved from the Biobank (n = 972)...
January 3, 2017: Neurology
https://www.readbyqxmd.com/read/27876126/regular-sun-exposure-benefits-health
#13
H J van der Rhee, E de Vries, J W Coebergh
Since it was discovered that UV radiation was the main environmental cause of skin cancer, primary prevention programs have been started. These programs advise to avoid exposure to sunlight. However, the question arises whether sun-shunning behaviour might have an effect on general health. During the last decades new favourable associations between sunlight and disease have been discovered. There is growing observational and experimental evidence that regular exposure to sunlight contributes to the prevention of colon-, breast-, prostate cancer, non-Hodgkin lymphoma, multiple sclerosis, hypertension and diabetes...
December 2016: Medical Hypotheses
https://www.readbyqxmd.com/read/27876009/lifestyle-medication-and-socio-demographic-determinants-of-mental-and-physical-health-related-quality-of-life-in-people-with-multiple-sclerosis
#14
George A Jelinek, Alysha M De Livera, Claudia H Marck, Chelsea R Brown, Sandra L Neate, Keryn L Taylor, Tracey J Weiland
BACKGROUND: Health-related quality of life (QOL) is a key outcome for people with multiple sclerosis (MS). While modifiable lifestyle factors, like smoking, physical activity and vitamin D, have strong associations with development and progression of MS, few studies have examined such associations with QOL. METHODS: Using patient-reported data from 2312 people with MS from 54 countries, regression models explored associations of socio-demographic, therapeutic and lifestyle factors with QOL, using the Multiple Sclerosis Quality of Life-54 (MSQOL-54)...
November 22, 2016: BMC Neurology
https://www.readbyqxmd.com/read/27857120/multiple-sclerosis-latitude-and-vitamin-d-influence-disease-course-in-multiple-sclerosis
#15
Heather Wood
No abstract text is available yet for this article.
January 2017: Nature Reviews. Neurology
https://www.readbyqxmd.com/read/27829351/recent-updates-in-imperative-natural-compounds-for-healthy-brain-and-nerve-function-a-systematic-review-of-implications-for-multiple-sclerosis
#16
Nima Sanadgol, Shahram Shahraki Zahedani, Mohammad Sharifzadeh, Roghayeh Khalseh, Gullam Reza Barbari, Mohammad Abdollahi
BACKGROUND: The evolution of the 'Green' movement in western society has changed attitudes in the general population who now perceive natural compounds as being inherently harmless and more desirable than artificial chemical products. OBJECTIVE: Considering the growing interest towards introducing naturally emerged medicines, the purpose of this review was to overview the ongoing research into prevention and treatment of multiple sclerosis (MS) lesions. METHOD: This review was carried out by searching bibliographic databases such as PubMed and Scopus for studies reported between 1th January 2008 to 30rd January 2016 on MS patients or animal models of MS, investigating the beneficial effects of natural compounds in MS treatment...
November 8, 2016: Current Drug Targets
https://www.readbyqxmd.com/read/27806875/immune-regulatory-effects-of-high-dose-vitamin-d3-supplementation-in-a-randomized-controlled-trial-in-relapsing-remitting-multiple-sclerosis-patients-receiving-ifn%C3%AE-the-solarium-study
#17
Anne-Hilde Muris, Joost Smolders, Linda Rolf, Marielle Thewissen, Raymond Hupperts, Jan Damoiseaux
Multiple sclerosis (MS) is characterized by a disturbed immune homeostasis and low serum vitamin D levels are associated with an increased disease activity. While vitamin D has been hypothesized to promote the maintenance of immune homeostasis, vitamin D supplementation could be of benefit to patients with MS. The SOLAR study investigated the effects of high dose vitamin D3 supplementation on clinical outcomes in a randomized controlled trial. Here we present the immune regulatory effects, investigated in the SOLARIUM sub-study...
November 15, 2016: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/27792005/down-regulation-of-cyp27b1-gene-expression-in-iranian-patients-with-relapsing-remitting-multiple-sclerosis
#18
Zahra Rezaie, Mohammad Taheri, Leila Kohan, Arezou Sayad
BACKGROUND: Multiple sclerosis (MS) as a complex neurological disease can be due to vitamin D deficiency. CYP27B1 is referred to as a vitamin D metabolizing enzyme. MATERIALS AND METHODS: This study compared the expression level of CYP27B1 in Relapsing-Remitting MS (RRMS) patients with normal individuals in Iran. The RNA was extracted from 50 RRMS patients and 50 normal controls. Quantitative RT-PCR was adopted to measure the expression level of CYP27B1 gene. RESULTS: The expression level of CYP27B1gene was significantly lower in the RRMS patients than their normal counterparts (P value = 0...
October 14, 2016: Human Antibodies
https://www.readbyqxmd.com/read/27764518/administration-of-vitamin-d3-induces-cnpase-and-myelin-oligodendrocyte-glycoprotein-expression-in-the-cerebral-cortex-of-the-murine-model-of-cuprizone-induced-demyelination
#19
F Mashayekhi, Z Salehi
In the central nervous system (CNS) the main proteins of myelin are proteolipid protein (PLP), myelin basic protein (MBP), myelin oligodendrocyte glycoprotein (MOG) and CNPase. Myelin oligodendrocyte glycoprotein is a minor component of the myelin sheath, but is an important autoantigen linked to the pathogenesis of multiple sclerosis (MS). CNPase is expressed exclusively by oligodendrocytes in the CNS, and the appearance of CNPase seems to be one of the earliest events of oligodendrocyte differentiation and myelination...
2016: Folia Neuropathologica
https://www.readbyqxmd.com/read/27725127/vitamin-d-modulates-different-il-17-secreting-t-cell-subsets-in-multiple-sclerosis-patients
#20
Denise S M Medrado da Costa, Joana Hygino, Thais B Ferreira, Taissa M Kasahara, Priscila O Barros, Clarice Monteiro, Aleida Oliveira, Felipe Tavares, Claudia Cristina Vasconcelos, Regina Alvarenga, Cleonice A M Bento
Vitamin D deficiency is an environmental risk factor for MS, a Th17 cell-mediated autoimmune disease that results in demyelination in the CNS. Therefore, we aimed to evaluate the ability of in vitro 1,25(OH)2D in modulating different Th17 cell subsets in MS patients in remission phase. In the present study, the production of Th17-related cytokines (IL-1β, IL-6, IL-17, IL-22), as well as GM-CSF, was significantly higher in cell cultures from MS patients than in healthy subjects (HS). The 1,25(OH)2D reduced all pro-inflammatory cytokines essayed, mainly those released from HS cell cultures...
October 15, 2016: Journal of Neuroimmunology
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