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Association Between Osteoprotegerin Gene Polymorphisms and Rheumatoid Arthritis Susceptibility: A Meta-analysis
Yuehong Chen1, Yuan Yang1, Gang Liu1
1Department of Rheumatology and Immunology, West China Hospital, Sichuan University, 37 Guoxue Xiang, Chengdu, Sichuan, China.
Background And Aims:
We undertook this study to assess the association between osteoprotegerin (OPG) gene polymorphisms and rheumatoid arthritis (RA) susceptibility.
Methods:
English language databases of PubMed Medline and OVID EMBASE and Chinese databases of China National Knowledge Infrastructure, Chinese Biomedical Literature Database and Wanfang were searched to identify case-control studies studied the relationship between OPG gene polymorphisms and RA susceptibility. Two reviewers separately and repeatedly screened searched studies according to study selection criteria and collected data. Data analyses of five comparison models-allelic model, heterozygote model, homozygote model, dominant model and recessive model-were conducted in Review Manager Software 5.1.
Results:
A total of five studies including 1713 RA cases and 1845 controls were eligible in this meta-analysis. Single nucleotide polymorphisms (SNPs), rs3102735 T/C or A/G, rs2073618 G/C and rs3134069 T/G, of OPG gene were studied. Data from five studies of SNPs rs3102735 were OR = 1.22, 95% CI 0.86-1.73, OR = 1.06, 95% CI 0.86-1.32, OR = 1.79, 95% CI 0.65-4.89, OR = 1.16, 95% CI 0.85-1.59, OR = 1.73, 95% CI 0.67-4.46, respectively, for the five comparison models in order. For SNPs rs2073618, results derived from three studies were OR = 1.06, 95% CI 0.95-1.19, OR = 1.11, 95% CI 0.94-1.31, OR = 1.09, 95% CI 0.84-1.42, OR = 1.10, 95% CI 0.94-1.30, OR = 1.04, 95% CI 0.84-1.30, respectively. With respect to SNPs rs3134069, only one study assessed the associations, reporting no statistically significant results among the five comparison models.
Conclusion:
SNPs rs3102735, rs2073618 and rs3134069 of OPG gene polymorphisms are not susceptibility factors of RA based on currently available evidence.
