Projects per year
Abstract
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. Meta-analysis of the summary statistics from 19 cohorts identified in CYP2R1 the low-frequency (minor allele frequency = 2.5%) synonymous coding variant g.14900931G>A (p.Asp120Asp) (rs117913124[A]), which conferred a large effect on 25-hydroxyvitamin D (25OHD) levels (−0.43 SD of standardized natural log-transformed 25OHD per A allele; p value = 1.5 × 10−88). The effect on 25OHD was four times larger and independent of the effect of a previously described common variant near CYP2R1. By analyzing 8,711 individuals, we showed that heterozygote carriers of this low-frequency variant have an increased risk of vitamin D insufficiency (odds ratio [OR] = 2.2, 95% confidence interval [CI] = 1.78–2.78, p = 1.26 × 10−12). Individuals carrying one copy of this variant also had increased odds of multiple sclerosis (OR = 1.4, 95% CI = 1.19–1.64, p = 2.63 × 10−5) in a sample of 5,927 case and 5,599 control subjects. In conclusion, we describe a low-frequency CYP2R1 coding variant that exerts the largest effect upon 25OHD levels identified to date in the general European population and implicates vitamin D in the etiology of multiple sclerosis.
| Original language | English |
|---|---|
| Pages (from-to) | 227-238 |
| Number of pages | 12 |
| Journal | American Journal of Human Genetics |
| Volume | 101 |
| Issue number | 2 |
| Early online date | 27 Jul 2017 |
| DOIs | |
| Publication status | Published - 3 Aug 2017 |
Research Groups and Themes
- ICEP
Keywords
- vitamin D
- multiple sclerosis
- GWAS
- low-frequency genetic variants
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Dive into the research topics of 'Low-Frequency Synonymous Coding Variation in CYP2R1 Has Large Effects on Vitamin D Levels and Risk of Multiple Sclerosis'. Together they form a unique fingerprint.Projects
- 2 Finished
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MRC UoB UNITE Unit - programme 3
Timpson, N. J. (Principal Investigator) & Timpson, N. J. (Principal Investigator)
1/06/13 → 31/03/18
Project: Research
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THE PUBLIC HEALTH IMPORTANCE OF VITAMIN D: DETERMINING CAUSAL EFFECTS OF INTRAUTERINE AND LIFETIME EXPOSURE TO VITAMIN D
Lawlor, D. A. (Principal Investigator)
1/10/08 → 1/12/13
Project: Research
Student theses
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Vitamin D and head and neck cancer: A examination of causality and mechanisms.: an examination of causality and mechanisms.
Dudding, T. (Author), Martin, R. (Supervisor) & Timpson, N. (Supervisor), 28 Nov 2019Student thesis: Doctoral Thesis › Doctor of Philosophy (PhD)
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