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Vitamin D receptor polymorphisms may contribute to asthma risk

Ji-Chang Han¹, Jin Du¹, Ya-Jun Zhang¹

¹a Department of Respiration , Huaihe Hospital of Henan University , Kaifeng , China.

The Journal of Asthma : Official Journal of the Association for the Care of Asthma

|April 19, 2016

Summary

This meta-analysis found that specific vitamin D receptor (VDR) gene polymorphisms (rs2228570, rs7975232, rs731236, and rs3782905) are linked to an increased risk of asthma, suggesting their potential as biomarkers.

Area of Science:

Genetics
Pulmonology
Molecular Biology

Background:

Asthma is a prevalent chronic respiratory condition causing significant illness and death.
Understanding genetic factors influencing asthma susceptibility is crucial for effective management.

Purpose of the Study:

To investigate the association between four vitamin D receptor (VDR) gene polymorphisms and asthma risk.
To conduct a comprehensive meta-analysis of existing studies to confirm these genetic links.

Main Methods:

Systematic literature search across major scientific databases (PubMed, Web of Science, etc.).
Inclusion of 9 high-quality studies involving 2,116 asthma patients and 1,884 controls.
Statistical analysis using Stata 12.0 to evaluate VDR gene polymorphism associations.

Main Results:

Polymorphisms rs2228570, rs7975232, and rs731236 in the VDR gene showed a significant association with increased asthma risk.
The rs3782905 polymorphism was also linked to higher asthma risk in the allele model.
No significant association was found for rs3782905 in the dominant model.

Conclusions:

This meta-analysis provides strong evidence linking specific VDR gene polymorphisms to increased asthma susceptibility.
These VDR polymorphisms may serve as valuable biomarkers for predicting asthma risk.
Further research into VDR's role in asthma pathogenesis is warranted.

Keywords:

Asthma Vitamin D receptor allele model case and control study dominant model meta-analysis polymorphism susceptibility

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