Evidence map›Paper›PMID 32867112›Full record

ArticleNutrients2020

The Role of Polymorphisms in Vitamin D-Related Genes in Response to Vitamin D Supplementation.

Sara Tomei, Parul Singh, Rebecca Mathew, Valentina Mattei, Mathieu Garand, Mariam Alwakeel, Elham Sharif, Souhaila Al Khodor

Open access · goldAbstract read
In one paragraph

Article in Nutrients, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 14% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

18 citing papers in PubMed, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Vitamin D-Related Genes and Thyroid Cancer-A Systematic Review.International journal of molecular sciences · 2022
    Pooled it
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Vitamin D metabolism and extraskeletal outcomes: an update.Archives of endocrinology and metabolism · 2022
    Review
  11. Article
  12. Observational
  13. Article
  14. Impact of daily vitamin DFrontiers in nutrition · 2022
    Article
  15. Antioxidants (Basel, Switzerland) · 2021
    Article
  16. Article
  17. Article
  18. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

Sara TomeiResearch Department, Sidra Medicine, Doha 26999, Qatar.ORCID 0000-0001-5334-9140
Parul SinghResearch Department, Sidra Medicine, Doha 26999, Qatar.
Rebecca MathewResearch Department, Sidra Medicine, Doha 26999, Qatar.
Valentina MatteiResearch Department, Sidra Medicine, Doha 26999, Qatar.
Mathieu GarandResearch Department, Sidra Medicine, Doha 26999, Qatar.ORCID 0000-0003-4243-853X
Mariam AlwakeelDepartment of Biomedical Sciences, College of Health Sciences, Qatar University, Doha 26999, Qatar.ORCID 0000-0002-9030-1696
Elham SharifDepartment of Biomedical Sciences, College of Health Sciences, Qatar University, Doha 26999, Qatar.ORCID 0000-0001-8463-8893
Souhaila Al KhodorResearch Department, Sidra Medicine, Doha 26999, Qatar.
Qatar University · QA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVitamin D deficiency represents a major healthcare problem. Vitamin D status is influenced by genetic and environmental determinants. Several observational studies have evaluated the association of single-nucleotide polymorphisms (SNPs) in vitamin D-related genes and vitamin D levels. Nevertheless, little is known about the role of these SNPs in the response to vitamin D supplementation. We conducted an interventional study to define the association between SNPs in vitamin D-related genes and the response to vitamin D supplementation in 100 self-reported healthy women of Arab ancestry for the majority.

methodsA total of 100 healthy female subjects received a weekly oral dose of 50,000 IU vitamin D for 12 weeks. Serum vitamin D concentration and metabolic profiles were measured at baseline and 12 weeks post-vitamin D supplementation. The genotypes of 37 SNPs selected from previously reported vitamin D-related genes have been assessed by Fluidigm genotyping assay.

resultsRs731236 (VDR gene) and rs7116978 (CYP2R1 gene) showed a significant association with vitamin D status. The rs731236 GG genotype and the rs7116978 CC genotype were associated with a "vitamin D sufficiency" state. Rs731236 GG and rs7116978 CC genotypes showed a higher response to vitamin D supplementation. Transcription factor binding site prediction analysis showed altered binding sites for transcription factors according to the different rs7116978 alleles. Interestingly, the 37 SNPs previously established to play a role in vitamin D-related pathways explained very little of the response to vitamin D supplementation in our cohort, suggesting the existence of alternative loci whose number and effect size need to be investigated in future studies.

conclusionIn this paper, we present novel data on vitamin D-related SNPs and response to vitamin D supplementation demonstrating the feasibility of applying functional genomic approaches in interventional studies to assess individual-level responses to vitamin D supplementation.

Indexed as

Dietary SupplementsAdultArabsFemaleFollow-Up StudiesHumansPolymorphism, Single NucleotideVitamin DVitaminsYoung AdultVitamin DVitamins25-hydroxyvitamin D25(OH)Dbloodpolymorphismssingle-nucleotide polymorphismSNPvitamin Dvitamin D deficiency

Identifiers

PMID32867112
PMCPMC7551134
OpenAlexW3081282712

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.