期刊
BIOMED RESEARCH INTERNATIONAL
卷 2016, 期 -, 页码 -出版社
HINDAWI LTD
DOI: 10.1155/2016/5305282
关键词
-
资金
- Henan Province Basis and Advancing Science Program [132300410362]
Aims. Studies on the associations of vitamin D receptor (VDR) gene polymorphisms with diabetic retinopathy (DR) susceptibility reported conflicting results. A systematic meta-analysis was undertaken to clarify this topic. Methods. A systematic search of electronic databases (PubMed, EMBASE, and CNKI) was carried out until March 31, 2016. The pooled odds ratio (OR) and 95% confidence interval (CI) were used to assess the strength of the association. Results. A total of 7 studies fulfilling the inclusion criteria were included in this meta-analysis (649 cases and 707 controls). Pooled ORs showed a significant association between FokI polymorphism and DR risk in all the four genetic models (OR = 1.612 (1.354 similar to 1.921), 1.988 (1.481 similar to 2.668), 1.889 (1.424 similar to 2.505), and 2.674 (1.493 similar to 4.790) in allelic, dominant, recessive, and additive models, resp., P-Z < 0.01), but not for TaqI or BsmI polymorphism (P-Z > 0.05). Similar results were found in the subgroup analysis. Sensitivity analysis indicated that the results were relatively stable and reliable. Results of Begg's and Egger's tests suggested a lack of publication bias. Conclusions. Our meta-analysis demonstrated that DR was significantly associated with VDR gene FokI polymorphism. However, due to the relatively small sample size in this meta-analysis, further studies with a larger sample size should be done to confirm the findings.
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