Evidence map›Paper›PMID 31670295›Full record

ArticleLung India : official organ of Indian Chest Society

Effects of genetic polymorphisms in Vitamin D metabolic pathway on Vitamin D level and asthma control in South Indian patients with bronchial asthma.

Manju Rajaram, Sandhiya Selvarajan, Revathy Neelamegan, Sadishkumar Kamalanathan, Vikneswaran Gunaseelan, Alphienes Stanley Xavier, Saibal Das, Vignesh Karthikeyan, Vinodkumar Saka, Adithan Chandrasekaran

Open access · diamondAbstract read
In one paragraph

Article in Lung India : official organ of Indian Chest Society. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

7 citing papers in PubMed, 10 citations in OpenAlex.

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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

10 authors at 3 institutions in 1 country.

Manju RajaramDepartment of Pulmonary Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
Sandhiya SelvarajanDepartment of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
Revathy NeelameganDepartment of Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
Sadishkumar KamalanathanDepartment of Endocrinology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
Vikneswaran GunaseelanDepartment of Clinical Research, Narayana Hrudalya, Bengaluru, Karnataka, India.
Alphienes Stanley XavierDepartment of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
Saibal DasDepartment of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
Vignesh KarthikeyanCentre for Biotechnology, Cell Signaling Laboratory, Anna University, Chennai, Tamil Nadu, India.
Vinodkumar SakaDepartment of Pulmonary Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
Adithan ChandrasekaranDepartment of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
Jawaharlal Institute of Post Graduate Medical Education and Research · INAnna University, Chennai · INNarayana Health · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe study was designed to evaluate the single-nucleotide polymorphisms (SNPs) of genes involved in Vitamin D actions (rs2228570) and metabolic pathways (rs2248137 and rs10766197) and their associations with serum 25-hydroxy Vitamin D (25(OH)D) level and asthma control in South Indian patients with bronchial asthma. MATERIALS AND

methodsOne hundred and two patients of South Indian origin with bronchial asthma either naive to inhaled corticosteroids (ICSs) or not receiving ICS for ≥1 month were included and were treated with ICS (beclomethasone 200 μg twice daily) for 8 weeks. One hundred and one unrelated healthy South Indians were used as controls. Pulmonary function test and fractional exhaled nitric oxide were used to assess asthma control. Serum 25(OH)D levels (chemiluminescence immunoassay) and SNPs in Vitamin D pathway (real-time polymerase chain reaction) were assessed. The associations of SNPs and serum 25(OH)D with asthma control was determined using linear regression. All analyses were performed using SPSS (version 19) and "SNPStats." P < 0.05 was considered as statistically significant.

resultsVitamin D receptor (VDR) polymorphism (rs2228570) was found to be protective against asthma (P = 0.022), while there were no significant associations between the other two SNPs and asthma. Similarly, poor correlation and insignificant associations between the SNPs and serum 25(OH)D levels were observed in both cases and controls. There were also insignificant associations between the SNPs and asthma control.

conclusionVDR polymorphism (rs2228570) was found to be protective against asthma in South Indians, while other genes involved in the metabolic pathway of Vitamin D did not show associations with asthma.

Indexed as

Associationsbronchial asthmainhaled corticosteroidssingle-nucleotide polymorphismsVitamin D

Identifiers

PMID31670295
PMCPMC6852217
OpenAlexW2982847287

What OpenQuestion holds

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LicenceCC BY-NC-SA
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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.