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Published on: February 8, 2019
Association of ITGAV polymorphisms and risk of rheumatoid arthritis: evidence from a meta-analysis
Jun-Ming Huang1,2, Zhi-Ying Pang2, Guo-Bin Qi2
1Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology , Wuhan, China.
Objective:
Currently published papers regarding the relationship between integrin alpha V (ITGAV) gene polymorphisms and rheumatoid arthritis (RA) are contradictory. The aim of this meta-analysis was to evaluate the associations between the ITGAV gene polymorphisms and RA risk.
Methods:
Comprehensive literature search based on four electronic databases was applied to retrieve all related data. Two independent reviewers screened each article for eligibility according to the predetermined inclusion criteria. Pooled odds ratios (ORs) and 95% confidence intervals (95% CIs) were used to assess associations between ITGAV gene polymorphisms and RA.
Results:
Six articles involving 5794 RA patients and 5297 healthy controls were included in this meta-analysis. The combined data indicated that rs3911238, rs3738919, rs3768777, and rs10174098 in ITGAV gene were not associated with RA risk in the overall population. However, stratification analysis by ethnicity suggested that rs3768777 was related with risk of RA among Caucasian population (OR 3.51, 95%CI 2.06, 5.97; P < 0.0001), but not among Asian population (OR 1.06, 95%CI 0.67, 1.69; P = 0.81).
Conclusions:
Our meta-analysis confirmed that the ITGAV gene rs3768777 polymorphisms might be a risk factor among Caucasians. However, larger-scale studies in Caucasian population are still warranted to confirm the findings of our study.
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