Genetic and environmental determinants of 25-hydroxyvitamin D levels in multiple sclerosis
Background: Evidence is accumulating supporting a beneficial effect of vitamin D in multiple sclerosis (MS). Genome-wide association studies (GWAS) have shown significant associations between 25-hydroxyvitamin D (25(OH)D) and single nucleotide polymorphisms (SNPs) in key genes in the vitamin D metab...
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| Published in: | Multiple sclerosis Vol. 21; no. 11; pp. 1414 - 1422 |
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| Main Authors: | , , , , , , , |
| Format: | Journal Article |
| Language: | English |
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London, England
SAGE Publications
01.10.2015
Sage Publications Ltd |
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| ISSN: | 1352-4585, 1477-0970, 1477-0970 |
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| Abstract | Background:
Evidence is accumulating supporting a beneficial effect of vitamin D in multiple sclerosis (MS). Genome-wide association studies (GWAS) have shown significant associations between 25-hydroxyvitamin D (25(OH)D) and single nucleotide polymorphisms (SNPs) in key genes in the vitamin D metabolism.
Objective:
To examine the association between 25(OH)D and six GWAS SNPs and environmental factors in 1497 MS patients.
Methods:
Blood samples and lifestyle questionnaires were collected between 2009 and 2012. Genotyping of GC-, CYP2R1- and NADSYN1-SNPs was performed by TaqMan allelic discrimination (Life Technologies).
Results:
We found significant associations between 25(OH)D and SNPs in GC (rs7041, p = 0.01 and rs2282679, p = 0.03) and CYP2R1 (rs10741657, p =1.8 × 10−4). Season of blood sampling (p = 2.8 × 10−31), sex (p = 1.9 × 10−5), BMI (p = 2.3 × 10−5), vitamin supplements (p = 7.0 × 10−22), and fish intake (p = 0.02) also had significant effects on 25(OH)D.
Conclusion:
In this cross-sectional study, we found significant effects of environmental factors and SNPs in GC and CYP2R1 on 25(OH)D in MS patients. Since 25(OH)D might have protective effects in MS, and vitamin D supply is a modifiable factor, it may be important to include this in the MS treatment regimen. |
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| AbstractList | Evidence is accumulating supporting a beneficial effect of vitamin D in multiple sclerosis (MS). Genome-wide association studies (GWAS) have shown significant associations between 25-hydroxyvitamin D (25(OH)D) and single nucleotide polymorphisms (SNPs) in key genes in the vitamin D metabolism.
To examine the association between 25(OH)D and six GWAS SNPs and environmental factors in 1497 MS patients.
Blood samples and lifestyle questionnaires were collected between 2009 and 2012. Genotyping of GC-, CYP2R1- and NADSYN1-SNPs was performed by TaqMan allelic discrimination (Life Technologies).
We found significant associations between 25(OH)D and SNPs in GC (rs7041, p = 0.01 and rs2282679, p = 0.03) and CYP2R1 (rs10741657, p =1.8 × 10(-4)). Season of blood sampling (p = 2.8 × 10(-31)), sex (p = 1.9 × 10(-5)), BMI (p = 2.3 × 10(-5)), vitamin supplements (p = 7.0 × 10(-22)), and fish intake (p = 0.02) also had significant effects on 25(OH)D.
In this cross-sectional study, we found significant effects of environmental factors and SNPs in GC and CYP2R1 on 25(OH)D in MS patients. Since 25(OH)D might have protective effects in MS, and vitamin D supply is a modifiable factor, it may be important to include this in the MS treatment regimen. Background: Evidence is accumulating supporting a beneficial effect of vitamin D in multiple sclerosis (MS). Genome-wide association studies (GWAS) have shown significant associations between 25-hydroxyvitamin D (25(OH)D) and single nucleotide polymorphisms (SNPs) in key genes in the vitamin D metabolism. Objective: To examine the association between 25(OH)D and six GWAS SNPs and environmental factors in 1497 MS patients. Methods: Blood samples and lifestyle questionnaires were collected between 2009 and 2012. Genotyping of GC -, CYP2R1 - and NADSYN1 -SNPs was performed by TaqMan allelic discrimination (Life Technologies). Results: We found significant associations between 25(OH)D and SNPs in GC (rs7041, p = 0.01 and rs2282679, p = 0.03) and CYP2R1 (rs10741657, p =1.8 × 10-4 ). Season of blood sampling (p = 2.8 × 10-31 ), sex (p = 1.9 × 10-5 ), BMI (p = 2.3 × 10-5 ), vitamin supplements (p = 7.0 × 10-22 ), and fish intake (p = 0.02) also had significant effects on 25(OH)D. Conclusion: In this cross-sectional study, we found significant effects of environmental factors and SNPs in GC and CYP2R1 on 25(OH)D in MS patients. Since 25(OH)D might have protective effects in MS, and vitamin D supply is a modifiable factor, it may be important to include this in the MS treatment regimen. Evidence is accumulating supporting a beneficial effect of vitamin D in multiple sclerosis (MS). Genome-wide association studies (GWAS) have shown significant associations between 25-hydroxyvitamin D (25(OH)D) and single nucleotide polymorphisms (SNPs) in key genes in the vitamin D metabolism.BACKGROUNDEvidence is accumulating supporting a beneficial effect of vitamin D in multiple sclerosis (MS). Genome-wide association studies (GWAS) have shown significant associations between 25-hydroxyvitamin D (25(OH)D) and single nucleotide polymorphisms (SNPs) in key genes in the vitamin D metabolism.To examine the association between 25(OH)D and six GWAS SNPs and environmental factors in 1497 MS patients.OBJECTIVETo examine the association between 25(OH)D and six GWAS SNPs and environmental factors in 1497 MS patients.Blood samples and lifestyle questionnaires were collected between 2009 and 2012. Genotyping of GC-, CYP2R1- and NADSYN1-SNPs was performed by TaqMan allelic discrimination (Life Technologies).METHODSBlood samples and lifestyle questionnaires were collected between 2009 and 2012. Genotyping of GC-, CYP2R1- and NADSYN1-SNPs was performed by TaqMan allelic discrimination (Life Technologies).We found significant associations between 25(OH)D and SNPs in GC (rs7041, p = 0.01 and rs2282679, p = 0.03) and CYP2R1 (rs10741657, p =1.8 × 10(-4)). Season of blood sampling (p = 2.8 × 10(-31)), sex (p = 1.9 × 10(-5)), BMI (p = 2.3 × 10(-5)), vitamin supplements (p = 7.0 × 10(-22)), and fish intake (p = 0.02) also had significant effects on 25(OH)D.RESULTSWe found significant associations between 25(OH)D and SNPs in GC (rs7041, p = 0.01 and rs2282679, p = 0.03) and CYP2R1 (rs10741657, p =1.8 × 10(-4)). Season of blood sampling (p = 2.8 × 10(-31)), sex (p = 1.9 × 10(-5)), BMI (p = 2.3 × 10(-5)), vitamin supplements (p = 7.0 × 10(-22)), and fish intake (p = 0.02) also had significant effects on 25(OH)D.In this cross-sectional study, we found significant effects of environmental factors and SNPs in GC and CYP2R1 on 25(OH)D in MS patients. Since 25(OH)D might have protective effects in MS, and vitamin D supply is a modifiable factor, it may be important to include this in the MS treatment regimen.CONCLUSIONIn this cross-sectional study, we found significant effects of environmental factors and SNPs in GC and CYP2R1 on 25(OH)D in MS patients. Since 25(OH)D might have protective effects in MS, and vitamin D supply is a modifiable factor, it may be important to include this in the MS treatment regimen. Background: Evidence is accumulating supporting a beneficial effect of vitamin D in multiple sclerosis (MS). Genome-wide association studies (GWAS) have shown significant associations between 25-hydroxyvitamin D (25(OH)D) and single nucleotide polymorphisms (SNPs) in key genes in the vitamin D metabolism. Objective: To examine the association between 25(OH)D and six GWAS SNPs and environmental factors in 1497 MS patients. Methods: Blood samples and lifestyle questionnaires were collected between 2009 and 2012. Genotyping of GC-, CYP2R1- and NADSYN1-SNPs was performed by TaqMan allelic discrimination (Life Technologies). Results: We found significant associations between 25(OH)D and SNPs in GC (rs7041, p = 0.01 and rs2282679, p = 0.03) and CYP2R1 (rs10741657, p =1.8 × 10−4). Season of blood sampling (p = 2.8 × 10−31), sex (p = 1.9 × 10−5), BMI (p = 2.3 × 10−5), vitamin supplements (p = 7.0 × 10−22), and fish intake (p = 0.02) also had significant effects on 25(OH)D. Conclusion: In this cross-sectional study, we found significant effects of environmental factors and SNPs in GC and CYP2R1 on 25(OH)D in MS patients. Since 25(OH)D might have protective effects in MS, and vitamin D supply is a modifiable factor, it may be important to include this in the MS treatment regimen. |
| Author | Albrechtsen, Anders Koch-Henriksen, Nils Frikke-Schmidt, Ruth Søndergaard, Helle Bach Sellebjerg, Finn Oturai, Annette Laursen, Julie H Soelberg Sørensen, Per |
| Author_xml | – sequence: 1 givenname: Julie H surname: Laursen fullname: Laursen, Julie H organization: Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Danish Multiple Sclerosis Center, Denmark – sequence: 2 givenname: Helle Bach surname: Søndergaard fullname: Søndergaard, Helle Bach organization: Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Danish Multiple Sclerosis Center, Denmark – sequence: 3 givenname: Anders surname: Albrechtsen fullname: Albrechtsen, Anders organization: Centre of Bioinformatics, Faculty of Science, University of Copenhagen, Denmark – sequence: 4 givenname: Ruth surname: Frikke-Schmidt fullname: Frikke-Schmidt, Ruth organization: Department of Clinical Biochemistry, Rigshospitalet, Copenhagen University Hospital, Denmark – sequence: 5 givenname: Nils surname: Koch-Henriksen fullname: Koch-Henriksen, Nils organization: Rigshospitalet, Copenhagen University Hospital, Danish Multiple Sclerosis Treatment Register, Denmark/Clinical Institute, Department of Clinical Epidemiology, University of Aarhus, Denmark – sequence: 6 givenname: Per surname: Soelberg Sørensen fullname: Soelberg Sørensen, Per organization: Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Danish Multiple Sclerosis Center, Denmark – sequence: 7 givenname: Finn surname: Sellebjerg fullname: Sellebjerg, Finn organization: Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Danish Multiple Sclerosis Center, Denmark – sequence: 8 givenname: Annette surname: Oturai fullname: Oturai, Annette organization: Department of Neurology, Rigshospitalet, Copenhagen University Hospital, Danish Multiple Sclerosis Center, Denmark |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/25533295$$D View this record in MEDLINE/PubMed |
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| Keywords | Multiple sclerosis environment genetics 25-hydroxyvitamin D vitamin D |
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Evidence is accumulating supporting a beneficial effect of vitamin D in multiple sclerosis (MS). Genome-wide association studies (GWAS) have shown... Evidence is accumulating supporting a beneficial effect of vitamin D in multiple sclerosis (MS). Genome-wide association studies (GWAS) have shown significant... Background: Evidence is accumulating supporting a beneficial effect of vitamin D in multiple sclerosis (MS). Genome-wide association studies (GWAS) have shown... |
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| SubjectTerms | Adolescent Adult Aged Aged, 80 and over Biological Specimen Banks Cross-Sectional Studies Denmark Environment Female Genome-Wide Association Study Genotype Humans Male Middle Aged Multiple Sclerosis - blood Multiple Sclerosis - etiology Multiple Sclerosis - genetics Polymorphism, Single Nucleotide Vitamin D - analogs & derivatives Vitamin D - blood Young Adult |
| Title | Genetic and environmental determinants of 25-hydroxyvitamin D levels in multiple sclerosis |
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