rs113938679 - SLC4A4 - GC
Magnitude 2.2 · 1 study on file
Reported associations
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Genome-wide Association Study for Vitamin D Levels Reveals 69 Independent Loci. - American journal of human genetics (2020) · Manousaki D, Mitchell R, Dudding T, Haworth S, Harroud A, Forgetta V, Shah RL, Luan J, Langenberg C, Timpson NJ, Richards JB · PubMed 32059762
We aimed to increase our understanding of the genetic determinants of vitamin D levels by undertaking a large-scale genome-wide association study (GWAS) of serum 25 hydroxyvitamin D (25OHD). To do so, we used imputed genotypes from 401,460 white British UK Biobank participants with available 25OHD levels, retaining single-nucleotide polymorphisms (SNPs) with minor allele frequency (MAF) > 0.1% and imputation quality score > 0.3. We performed a linear mixed model GWAS on standardized log-transformed 25OHD, adjusting for age, sex, season of measurement, and vitamin D supplementation. These results were combined with those from a previous GWAS including 42,274 Europeans. In silico functional follow-up of the GWAS results was undertaken to identify enrichment in gene sets, pathways, and expre
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Lifestyle context
Concrete actions anchored to the cited research. We do not prescribe, we describe.
Bloodwork
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Serum 25-hydroxyvitamin D Moderate
SLC4A4 variant associated with reduced vitamin D status across 443,734 participants
Check serum 25-hydroxyvitamin D level annually or every 6-12 months
Diet
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Vitamin D-rich food sources Moderate
Dietary vitamin D intake complements supplementation strategy for genetic predisposition
Include fatty fish, egg yolks, mushrooms; target 2-3 servings weekly
Supplements
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Vitamin D3 supplementation Moderate
Genetic predisposition to lower vitamin D status may require proactive supplementation
1000-4000 IU daily, adjusted based on serum levels and season