Evidence map›Paper›PMID 34959812›Full record

SynthesisNutrients2021

Vitamin D and Type 1 Diabetes Risk: A Systematic Review and Meta-Analysis of Genetic Evidence.

Liana Najjar, Joshua Sutherland, Ang Zhou, Elina Hyppönen

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Nutrients, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
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

12 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Type 1 Diabetes Mellitus and Vitamin D.International journal of molecular sciences · 2025
    Review
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Review
  11. Article
  12. Review
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

4 authors.

Liana NajjarAustralian Centre for Precision Health, Unit of Clinical and Health Sciences, University of South Australia, P.O. Box 2471, Adelaide, SA 5001, Australia.
Joshua SutherlandAustralian Centre for Precision Health, Unit of Clinical and Health Sciences, University of South Australia, P.O. Box 2471, Adelaide, SA 5001, Australia.
Ang ZhouAustralian Centre for Precision Health, Unit of Clinical and Health Sciences, University of South Australia, P.O. Box 2471, Adelaide, SA 5001, Australia.
Elina HyppönenAustralian Centre for Precision Health, Unit of Clinical and Health Sciences, University of South Australia, P.O. Box 2471, Adelaide, SA 5001, Australia.ORCID 0000-0003-3670-9399

Funding

National Health and Medical Research Council GT1123603
6 · The paper itself

Abstract

Several observational studies have examined vitamin D pathway polymorphisms and their association with type 1 diabetes (T1D) susceptibility, with inconclusive results. We aimed to perform a systematic review and meta-analysis assessing associations between selected variants affecting 25-hydroxyvitamin D [25(OH)D] and T1D risk. We conducted a systematic search of Medline, Embase, Web of Science and OpenGWAS updated in April 2021. The following keywords "vitamin D" and/or "single nucleotide polymorphisms (SNPs)" and "T1D" were selected to identify relevant articles. Seven SNPs (or their proxies) in six genes were analysed:

Indexed as

AdolescentAdultAmidohydrolasesCarbon-Nitrogen Ligases with Glutamine as Amide-N-DonorChildChild, PreschoolCholestanetriol 26-MonooxygenaseCohort StudiesCytochrome P450 Family 2Diabetes Mellitus, Type 1FemaleGenetic Predisposition to DiseaseHumansMaleOxidoreductases Acting on CH-CH Group DonorsPolymorphism, Single Nucleotide25-hydroxyvitamin D7-dehydrocholesterol reductaseAmidohydrolasesCarbon-Nitrogen Ligases with Glutamine as Amide-N-DonorCholestanetriol 26-MonooxygenaseCYP24A1 protein, humanCYP2R1 protein, humanCytochrome P450 Family 2NADSYN1 protein, humanOxidoreductases Acting on CH-CH Group DonorsReceptors, CalcitriolSEC23A protein, humanVesicular Transport ProteinsVitamin DVitamin D3 24-HydroxylaseVitamin D-Binding Protein25-hydroxyvitamin DCYP2R1diabetes mellitusmeta-analysispolymorphismsingle nucleotidetype 1vitamin D

Identifiers

PMID34959812
PMCPMC8707565

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.