Association of IL12B Gene Polymorphisms with Rheumatoid Arthritis: A Meta-analysis.

Arch Med Res

Department of Orthopedics, Affiliated Hospital of Nanjing Medical University, Changzhou Second People's Hospital, Changzhou, China. Electronic address:

Published: February 2016

Background And Aims: Currently published papers regarding the relationship between interleukin (IL)-12B gene polymorphisms and rheumatoid arthritis (RA) are contradictory. The aim of this meta-analysis was to evaluate the associations between the IL-12B gene polymorphisms (rs3122227 and rs6887695) and RA risk.

Methods: We searched PubMed, Embase, the Cochrane Library and the China Knowledge Resource Integrated Database. Pooled odds ratios (ORs) and 95% confidence intervals (95% CIs) were used to assess associations between IL12B gene polymorphisms and RA.

Results: A total of eight publications (4,409 cases and 5,591 controls) were included in this meta-analysis. The results demonstrated that rs3122227 and rs6887695 were not associated with RA risk based on current included studies. However, stratification analyses indicated rs6887695 was associated with RA in Asian patients. Rs3122227 was not related with RA in Asian or Caucasian patients.

Conclusions: Our data indicated that IL-12B gene polymorphisms were not related with RA. However, rs6887695 was associated with RA in Asian patients. Further larger-scale studies are urgently needed to identify the association between IL-12B gene polymorphisms and RA in Asian populations.

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http://dx.doi.org/10.1016/j.arcmed.2016.04.006DOI Listing

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