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Association between a vascular endothelial growth factor gene polymorphism (rs2146323) and diabetic retinopathy: a meta-analysis.

ABSTRACT: Vascular endothelial growth factor (VEGF) is thought to play an important role in the pathogenesis of diabetic retinopathy (DR). Previous studies have associated the VEGF rs2146323 polymorphism with the risk of DR. However, the results of these studies are inconsistent. A meta-analysis was performed to evaluate the association between the VEGF rs2146323 polymorphism and the risk of DR.The PubMed, EMBASE, Web of Science and Google Scholar literature databases until March 2015 were searched. The differences in the studies were expressed in the form of an odds ratio (OR) and the corresponding 95% confidence interval (CI). Heterogeneity among the studies was tested using the I(2) statistic based on the Q test.A total of four studies (598 cases and 709 controls) were included in the meta-analysis. A significant association was found involving the rs2146323 polymorphism in the dominant model (CA + AA VS. CC) (OR = 1.38, CI = 1.10-1.72, P = 0.005) and the co-dominant model (CA VS. CC) (OR = 1.37, CI = 1.08-1.74, P = 0.008).Our meta-analysis confirmed the association between the VEGF rs2146323 polymorphism and the risk of DR.

SUBMITTER: Zeng Y

PROVIDER: S-EPMC4640352 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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Association between a vascular endothelial growth factor gene polymorphism (rs2146323) and diabetic retinopathy: a meta-analysis.

Zeng Ying Y Dai Fangjie F Yang Ke K Tang Yongqing Y Xu Meng M Zhou Yiwu Y

BMC ophthalmology 20151109

<h4>Background</h4>Vascular endothelial growth factor (VEGF) is thought to play an important role in the pathogenesis of diabetic retinopathy (DR). Previous studies have associated the VEGF rs2146323 polymorphism with the risk of DR. However, the results of these studies are inconsistent. A meta-analysis was performed to evaluate the association between the VEGF rs2146323 polymorphism and the risk of DR.<h4>Methods</h4>The PubMed, EMBASE, Web of Science and Google Scholar literature databases un ...[more]

PMID: 26553067

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Project description:OBJECTIVE:To investigate the relationship between vascular endothelial growth factor (VEGF) gene polymorphisms and Retinopathy of prematurity (ROP) development in preterm infants of China Han ethnic population. METHODS:VEGF gene promoter polymorphisms (-165C/T and -141A/C) were studied in 54 neonates with ROP but not requiring treatment (regressive ROP group), 48 neonates with ROP that requires cryotherapy/photocoagulation (severe ROP group), and in a control group of 62 preterm infants without ROP. Genotyping for VEGF gene promoter was performed by polymerase chain reaction (PCR) and gene sequencing. RESULTS:In this study, -165C/T genotype was found to be associated with severe ROP (P=0.012<0.05), but not with regressive ROP. For the dominant genetic model, subjects carrying the -165T allele had a decreased risk of ROP compared to those non-carrying the -165C allele in both regressive ROP regressive group and severe ROP group, and especially in severe ROP group (in regressive ROP group: OR=2.069, 95% CI=0.986-4.340; in severe ROP group: OR=3.677, 95% CI=1.339-10.099). For the allelic model, comparing the A allele to the C allele, the -165C/T site also showed a decreased risk of ROP in both regressive ROP group and severe ROP group (in regressive ROP group: OR=2.395, 95% CI=1.112-5.157; in severe ROP group: OR=4.258, 95% CI=1.518-11.945). In -141A/C genotypes and alleles were found not to be associated with severe ROP or regressive ROP. Linkage disequilibrium analysis revealed -165C/T and -141A/C were a strong linkage disequilibrium, and haplotype analysis revealed that T-165C-141 haplotype was associated with resistance to severe ROP but C-165A-141 haplotype was associated with risk to severe ROP. No statistically significant differences were observed in regressive ROP group. CONCLUSION:VEGF -165C/T SNP is associated with ROP especial in severe ROP. VEGF -141A/C SNP is not associated with ROP. T-165C-141 and C-165A-141 haplotypes may have a role in severe ROP.

Dataset Information

Association between a vascular endothelial growth factor gene polymorphism (rs2146323) and diabetic retinopathy: a meta-analysis.

Publications

Association between a vascular endothelial growth factor gene polymorphism (rs2146323) and diabetic retinopathy: a meta-analysis.

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