Evidence map›Paper›PMID 27160686›Full record

ArticleBMC pulmonary medicine2016

Vitamin D deficiency associates with susceptibility to tuberculosis in Pakistan, but polymorphisms in VDR, DBP and CYP2R1 do not.

Kashaf Junaid, Abdul Rehman, David A Jolliffe, Tahir Saeed, Kristie Wood, Adrian R Martineau

Open access · goldAbstract read
In one paragraph

Article in BMC pulmonary medicine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 2 pooled it
4.7field-weighted citation impact, top 5% 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

16 citing papers in PubMed, 2 syntheses or guidelines pooled it, 44 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Association of vitamin D receptorJournal of clinical tuberculosis and other mycobacterial diseases · 2026
    Article
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  5. Identification and Association ofCurrent issues in molecular biology · 2025
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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

6 authors at 2 institutions in 2 countries.

Kashaf JunaidDepartment of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, Lahore, 5400, Pakistan. kashaf_junaid@hotmail.com.
Abdul RehmanDepartment of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, Lahore, 5400, Pakistan.
David A JolliffeCentre for Primary Care and Public Health, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AB, UK.
Tahir SaeedGulab Devi Chest Hospital, Lahore, Pakistan.
Kristie WoodGenome Centre, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, EC1M 6BQ, UK.
Adrian R MartineauCentre for Primary Care and Public Health, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AB, UK.
Queen Mary University of London · GBUniversity of the Punjab · PK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSingle nucleotide polymorphisms (SNPs) in the genes encoding the vitamin D receptor (VDR) and the vitamin D binding protein (DBP) have been reported to modify the influence of vitamin D deficiency on susceptibility to active tuberculosis (TB) in the UK, but this phenomenon has not been investigated in settings with a high TB burden. SNPs in CYP2R1, which encodes a vitamin D 25-hydroxylase enzyme, are known to influence vitamin D status, but their potential role in determining susceptibility to TB has not previously been investigated in any setting.

methodWe conducted a case-control study in 260 pulmonary TB patients and 112 controls recruited in Lahore, Pakistan. Analyses were conducted to test for main effects of vitamin D status and SNPs in VDR (rs731236, rs2228570 and rs1544410), DBP (rs7041 and rs4588) and CYP2R1 (rs2060793, rs10500804 and rs10766197) on susceptibility to TB, and to investigate whether these SNPs modify the association between vitamin D status and disease susceptibility.

resultsProfound vitamin D deficiency (serum 25-hydroxyvitamin D concentration ≤ 20 nmol/L) was common among TB patients (118/260, 45 %), and was independently associated with susceptibility to TB (adjusted odds ratio 1.87, 95 % CI 1.15 to 3.04, P = 0.01). However, none of the SNPs investigated associated with susceptibility to TB, either in main effects analysis, or in interaction with vitamin D status.

conclusionProfound vitamin D deficiency was common among TB patients in this high-burden setting, and was independently associated with disease susceptibility. However, no statistically significant associations between SNPs in the vitamin D pathway and disease susceptibility was demonstrated.

Indexed as

Polymorphism, Single NucleotideSignal TransductionAdolescentAdultCase-Control StudiesCholestanetriol 26-MonooxygenaseCytochrome P450 Family 2DNA-Binding ProteinsFemaleGenetic Predisposition to DiseaseGenotypeHumansMaleMiddle AgedPakistanReceptors, Calcitriol25-hydroxyvitamin DCholestanetriol 26-MonooxygenaseCYP2R1 protein, humanCytochrome P450 Family 2DBP protein, humanDNA-Binding ProteinsReceptors, CalcitriolTranscription FactorsVDR protein, humanVitamin DHypovitaminosis DTuberculosisVitamin DVitamin D 25-hydroxylaseVitamin D binding proteinVitamin D Receptor

Identifiers

PMID27160686
PMCPMC4862192
OpenAlexW2346506482

What OpenQuestion holds

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LicenceCC BY
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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 OpenQuestion graph.