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Multiple sclerosis, vitamin d

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https://www.readbyqxmd.com/read/27910985/uvb-radiation-vitamin-d-and-multiple-sclerosis
#1
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
#2
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
#3
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)...
November 30, 2016: Neurology
https://www.readbyqxmd.com/read/27876126/regular-sun-exposure-benefits-health
#4
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
#5
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
#6
Heather Wood
No abstract text is available yet for this article.
November 18, 2016: 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
#7
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
#8
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
#9
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
#10
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
#11
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
https://www.readbyqxmd.com/read/27721584/the-three-sisters-of-fate-in-multiple-sclerosis-klotho-clotho-fibroblast-growth-factor-23-lachesis-and-vitamin-d-atropos
#12
Hamit Yasar Ellidag, Necat Yilmaz, Fatma Kurtulus, Ozgur Aydin, Esin Eren, Ayca Inci, Suleyman Dolu, Fatma Demet Arslan Ince, Özlem Giray, Aylin Yaman
BACKGROUND: The klotho (Klt)-fibroblast growth factor-23 (FGF-23)-vitamin D axis is the main component of calcium (Ca) and phosphorus (P) metabolisms; on the contrary, it is also secreted from the choroid plexus (CP). PURPOSE: This study is aimed at evaluating serum soluble Klt (sKlt), FGF-23, and 25-(OH)-vitamin D levels in multiple sclerosis (MS) patients. METHODS: Thirty-two relapsing-remitting MS patients (11 males and 21 females; mean age 38...
September 2016: Annals of Neurosciences
https://www.readbyqxmd.com/read/27721317/analysis-of-the-relationship-between-the-month-of-birth-and-risk-of-multiple-sclerosis-in-a-spanish-population
#13
Rocío N Villar-Quiles, Jordi A Matías-Guiu, Gloria Ortega, Inés González-Suárez, Celia Oreja-Guevara, Jorge Matías-Guiu
BACKGROUND: Some studies have suggested an association between the month of birth and risk of multiple sclerosis (MS), related to environmental factors, mainly sun exposure and maternal vitamin D levels. Few studies have been conducted in Southern Europe countries. Madrid has a continental climate with considerable variation of sun hours between winter and summer, so it may be relevant to study this relationship. METHODS: MS patients, born between 1932 and 2003, 1,335 of them from our database between 2004 and 2015, were analysed...
2016: European Neurology
https://www.readbyqxmd.com/read/27698283/corrigendum
#14
(no author information available yet)
Corrigendum to Season of birth and not vitamin D receptor promoter polymorphisms is a risk factor for multiple sclerosis by DA Fernandes de Abreu, MC Babron I, C Rebeix, J Fontenille, D Yaouanq, B Brassat, F Fontaine, F Clerget-Darpoux, F Jehan and Feron. Mult Scler 2009; 15: 1146-1152 [DOI: 10.1177/1352458509106780].
October 2016: Multiple Sclerosis: Clinical and Laboratory Research
https://www.readbyqxmd.com/read/27689613/increased-expression-ratio-of-matrix-metalloproteinase-9-mmp9-and-tissue-inhibitor-of-matrix-metalloproteinase-timp-1-rna-levels-in-iranian-multiple-sclerosis-patients
#15
Marzieh Khoshbin Nazdik, Mohammad Taheri, Mir Davood Omrani, Elham Sajjadi, Shahram Arsang-Jang, Zeinab Kazaei Koohpar, Hidetoshi Inoko, Arezou Sayad
OBJECTIVES: Multiple sclerosis (MS) is an autoimmune disease involving the central nervous system (CNS) with unknown immunopathogenic mechanisms. Matrix metalloproteinase-9 (MMP-9) facilitates T-cell migration into the CNS while the tissue inhibitor matrix metalloproteinase-1 (TIMP-1) inhibits MMP-9 actions. The aim of this study was to evaluate the expression of TIMP-1 RNA and MMP-9/TIMP-1 RNA ratio in blood cells of Iranian patients with relapsing-remitting multiple sclerosis (RRMS) treated with IFNb...
September 22, 2016: Human Antibodies
https://www.readbyqxmd.com/read/27683852/physical-activity-and-the-incidence-of-multiple-sclerosis
#16
Kirsten S Dorans, Jennifer Massa, Tanuja Chitnis, Alberto Ascherio, Kassandra L Munger
OBJECTIVE: To study whether physical activity during adulthood or early life is associated with multiple sclerosis (MS) incidence in 2 prospective cohorts of women. METHODS: Women in the Nurses' Health Study (NHS) (n = 81,723; 1986-2004) and NHS II (n = 111,804; 1989-2009) reported recent physical activity at baseline and in selected follow-up questionnaires. Using this information, we calculated total metabolic equivalent hours of physical activity per week, a measure of energy expenditure...
October 25, 2016: Neurology
https://www.readbyqxmd.com/read/27652346/mendelian-randomization-shows-a-causal-effect-of-low-vitamin-d-on-multiple-sclerosis-risk
#17
Brooke Rhead, Maria Bäärnhielm, Milena Gianfrancesco, Amanda Mok, Xiaorong Shao, Hong Quach, Ling Shen, Catherine Schaefer, Jenny Link, Alexandra Gyllenberg, Anna Karin Hedström, Tomas Olsson, Jan Hillert, Ingrid Kockum, M Maria Glymour, Lars Alfredsson, Lisa F Barcellos
OBJECTIVE: We sought to estimate the causal effect of low serum 25(OH)D on multiple sclerosis (MS) susceptibility that is not confounded by environmental or lifestyle factors or subject to reverse causality. METHODS: We conducted mendelian randomization (MR) analyses using an instrumental variable (IV) comprising 3 single nucleotide polymorphisms found to be associated with serum 25(OH)D levels at genome-wide significance. We analyzed the effect of the IV on MS risk and both age at onset and disease severity in 2 separate populations using logistic regression models that controlled for sex, year of birth, smoking, education, genetic ancestry, body mass index at age 18-20 years or in 20s, a weighted genetic risk score for 110 known MS-associated variants, and the presence of one or more HLA-DRB1*15:01 alleles...
October 2016: Neurology. Genetics
https://www.readbyqxmd.com/read/27647308/a-novel-combination-of-docosahexaenoic-acid-all-trans-retinoic-acid-and-1-25-dihydroxyvitamin-d3-reduces-t-bet-gene-expression-serum-interferon-gamma-and-clinical-scores-but-promotes-ppar%C3%AE-gene-expression-in-experimental-autoimmune-encephalomyelitis
#18
Mohammad Reza Shiri-Shahsavar, Abbas Mirshafiee, Karim Parastouei, Abbas Ebrahimi-Kalan, Saeed Yekaninejad, Farid Soleymani, Reza Chahardoli, Ramin Mazaheri Nezhad Fard, Ali Akbar Saboor-Yaraghi
Vitamins are immunologically interesting due to their significant immunomodulatory activities. Experimental autoimmune encephalomyelitis (EAE) is one of the most commonly used experimental models for studying autoimmune disorder in multiple sclerosis (MS). The aim of this study was to evaluate the protective and ameliorative effects of novel combination of all-trans retinoic acid (ATRA), 1,25-dihydroxyvitamin D3 (D3), and docosahexaenoic acid (DHA) on EAE-specific determinants and target gene expressions. Mice were randomly categorized into three groups before EAE induction [non-treated EAE (Group E), treated EAE (Group T), and healthy mice (Group H)]...
September 19, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27645314/sunlight-exposure-do-health-benefits-outweigh-harm
#19
Mohammed S Razzaque
Vitamin D is a fat-soluble vitamin whose levels within the body are elevated following sunlight exposure. Numerous studies have shown that sunlight exposure can provide protection to a wide variety of diseases, ranging from different types of tumors to hypertension to type 1 diabetes to multiple sclerosis. Moreover, studies have shown that avoiding sunlight may influence the initiation and progression of these diseases. Avoidance of sunlight, coupled with the inclination towards consuming supplements, is becoming the primary choice to obtain vitamin D...
September 16, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27642308/vitamin-d-intake-and-its-protective-role-in-multiple-sclerosis-the-checkmate-to-survivin
#20
EDITORIAL
Raffaella Mormile
No abstract text is available yet for this article.
2016: Iranian Journal of Pharmaceutical Research: IJPR
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