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Immunological Investigations
A Journal of Molecular and Cellular Immunology
Volume 47, 2018 - Issue 4
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Original Articles

The role of TNF alpha polymorphism and expression in susceptibility to nasal polyposis

, , &
Pages 360-371 | Published online: 01 Feb 2018
 

ABSTRACT

Objective: In this study, we first performed a meta-analysis to assess the role of single-nucleotide polymorphism (SNP) within tumor necrosis factor alpha (TNF alpha) gene and TNF alpha expression in the risk of nasal polyposis.

Methods: STATA 12.0 software was utilized to conduct the Mantel–Haenszel statistics, Cohen statistics, Begg’s test, Egger’s tests and sensitivity analysis.

Results: We systemically carried out the database retrieval and initially identified 486 articles. After screening, 15 articles were included in our meta-analysis. For TNF alpha rs1800629 G/A SNP, compared with control group, an increased risk of nasal polyposis of case group was observed in the models of A vs. G [p (P value of association) = 0.009, OR (odds ratio) = 1.35], GA vs. GG (p = 0.001, OR = 1.69), GA+AA vs. GG (p = 0.010, OR = 1.47). The similar results were observed in Caucasian subgroup (p < 0.05, OR > 1). For TNF alpha rs361525 G/A SNP, no significant difference between control and case group was detected (all p > 0.05). In addition, a significant difference exists between case and control groups in the meta-analyses of TNF alpha expression in nasal mucosal cells, secreted TNF alpha (p < 0.05, OR > 1), but not serum TNF alpha (p = 0.090).

Conclusion: The present meta-analysis revealed that TNF alpha rs1800629, increased TNF alpha expression and secretion of nasal mucosal cells were associated with an increased risk of nasal polyposis.

Declaration of interest

The authors declare that there are no conflicts of interest.

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