Associations of IL-4, IL-4R, and IL-13 Gene Polymorphisms in Coal Workers' Pneumoconiosis in China: A Case-Control Study
2011

Gene Variants and Coal Workers' Pneumoconiosis Risk

Sample size: 1097 publication 10 minutes Evidence: moderate

Author Information

Author(s): Wang Meilin, Wang Shasha, Song Zhifang, Ji Xiaomin, Zhang Zhengdong, Zhou Jianwei, Ni Chunhui

Primary Institution: Nanjing Medical University

Hypothesis

The study investigates the association between polymorphisms in IL-4, IL-4R, and IL-13 genes and the risk of coal workers' pneumoconiosis (CWP) in a Chinese population.

Conclusion

The IL-4 C-590T polymorphism is associated with a decreased risk of coal workers' pneumoconiosis.

Supporting Evidence

  • The IL-4 CT/CC genotypes were associated with a significantly decreased risk of CWP.
  • Individuals with 11–12 risk alleles had a 47% higher risk of CWP than those with 0–8 risk alleles.
  • The study suggests that genetic factors may influence the risk of developing CWP.

Takeaway

This study found that certain gene changes can make coal workers less likely to get a lung disease caused by coal dust.

Methodology

A case-control study was conducted with 556 CWP patients and 541 controls, analyzing six gene polymorphisms.

Potential Biases

Selection bias may have occurred as subjects were recruited from a specific hospital.

Limitations

The study had a moderate sample size and potential selection bias due to its hospital-based design.

Participant Demographics

Participants included 556 coal workers with pneumoconiosis and 541 matched controls from coal mines.

Statistical Information

P-Value

0.049

Confidence Interval

95% CI = 0.58–0.95

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0022624

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