Evidence mapPaperPMID 28617856Full record

ArticlePloS one2017

The associations between VDR BsmI polymorphisms and risk of vitamin D deficiency, obesity and insulin resistance in adolescents residing in a tropical country.

Rayinda Rahmadhani, Nur Lisa Zaharan, Zahurin Mohamed, Foong Ming Moy, Muhammad Yazid Jalaludin

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 3 pooled it
3.0field-weighted citation impact, top 9% 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

30 citing papers in PubMed, 3 syntheses or guidelines pooled it, 57 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Vitamin D Receptor Polymorphisms Associated with Susceptibility to Obesity: A Meta-Analysis.Medical science monitor : international medical journal of experimental and clinical research · 2019
    Pooled it
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  13. The role of vitamin D receptor and IL-6 in COVID-19.Molecular genetics & genomic medicine · 2023
    Article
  14. Review
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  16. Article
  17. Association of VDR gene ApaI polymorphism with obesity in Iranian population.Biomedica : revista del Instituto Nacional de Salud · 2021
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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

5 authors at 1 institution in 1 country.

Rayinda RahmadhaniDepartment of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Nur Lisa ZaharanDepartment of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Zahurin MohamedDepartment of Pharmacology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Foong Ming MoyJulius Centre University of Malaya, Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
Muhammad Yazid JalaludinDepartment of Paediatrics, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia.
University of Malaya · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe vitamin D receptor (VDR) gene is expressed abundantly in different tissues; including adipocytes and pancreatic beta cells. The rs1544410 or BsmI single nucleotide polymorphism (SNP) in the intronic region of the VDR gene has been previously associated with vitamin D levels, obesity and insulin resistance.

aimsThis study was aimed to examine the association between BsmI polymorphism and risk of vitamin D deficiency, obesity and insulin resistance in adolescents living in a tropical country.

methodsThirteen-year-old adolescents were recruited via multistage sampling from twenty-three randomly selected schools across the city of Kuala Lumpur, Malaysia (n = 941). Anthropometric measurements were obtained. Obesity was defined as body mass index higher than the 95th percentile of the WHO chart. Levels of fasting serum vitamin D (25-hydroxyvitamin D (25(OH)D)), glucose and insulin were measured. HOMA-IR was calculated as an indicator for insulin resistance. Genotyping was performed using the Sequenom MassARRAY platform (n = 807). The associations between BsmI and vitamin D, anthropometric parameters and HOMA-IR were examined using analysis of covariance and logistic regression.

resultThose with AA genotype of BsmI had significantly lower levels of 25(OH)D (p = 0.001) compared to other genotypes. No significant differences was found across genotypes for obesity parameters. The AA genotype was associated with higher risk of vitamin D deficiency (p = 0.03) and insulin resistance (p = 0.03) compared to GG. The A allele was significantly associated with increased risk of vitamin D deficiency compared to G allele (adjusted odds ratio (OR) = 1.63 (95% Confidence Interval (CI) 1.03-2.59, p = 0.04). In those with concurrent vitamin D deficiency, having an A allele significantly increased their risk of having insulin resistance compared to G allele (adjusted OR = 2.66 (95% CI 1.36-5.19, p = 0.004).

conclusionVDR BsmI polymorphism was significantly associated with vitamin D deficiency and insulin resistance, but not with obesity in this population.

Indexed as

Polymorphism, Single NucleotideAdolescentAnthropometryFemaleGenetic Association StudiesGenetic Predisposition to DiseaseHumansInsulin ResistanceMalaysiaMaleObesityReceptors, CalcitriolVitamin D DeficiencyReceptors, CalcitriolVDR protein, human

Identifiers

PMID28617856
PMCPMC5472260
OpenAlexW2626387920

What Socratic holds

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Registered trials

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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.