Association of the NFKBIA gene polymorphisms with susceptibility to autoimmune and inflammatory diseases: a meta-analysis

Abstract

Objective: To quantitatively summarize the association of NFKBIA gene polymorphisms with autoimmune and inflammatory diseases.

Methods: We surveyed studies on the association of NFKBIA gene polymorphisms with autoimmune and inflammatory diseases in PubMed. Meta-analysis was performed in a fixed/random effect model.

Results: We identified 14 studies using a PubMed search. Meta-analysis was performed for NFKBIA gene polymorphisms at positions 2758 (A/G, 5 studies), -881 (A/G, 3 studies), -826 (C/T, 3 studies), and -297 (C/T, 3 studies). We did not detect associations of NFKBIA gene polymorphisms at positions 2758, -881, -297 with autoimmune and inflammatory diseases. An association of NFKBIA gene -826C/T polymorphism with autoimmune and inflammatory diseases was found (C vs. T: OR = 1.81, 95% CI = 0.97-3.36, P = 0.06; CT + TT vs. CC: OR = 2.11, 95% CI = 1.07-4.19, P = 0.03; TT vs. CC + CT: OR = 2.20, 95% CI = 0.78-6.21, P = 0.06; TT vs. CC: OR = 2.87, 95% CI = 0.78-10.62, P = 0.11; CT vs. CC: OR = 2.02, 95% CI = 1.22-3.36, P = 0.006).

Conclusion: This meta-analysis demonstrates that autoimmune and inflammatory diseases are associated with NFKBIA gene -826C/T polymorphism, but not with 2758A/G, -881A/G, and -279C/T.