期刊
RETINA-THE JOURNAL OF RETINAL AND VITREOUS DISEASES
卷 21, 期 5, 页码 469-477出版社
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/00006982-200110000-00009
关键词
blood-retinal barrier; diabetic retinopathy; interleukin-6; neovascularization; vascular endothelial growth factor
Purpose: To determine the relationship between the severity of diabetic retinopathy and the levels of interleukin-6 (IL-6) and vascular endothelial growth factor (VEGF) in aqueous humor and plasma. Methods: Forty-four eyes of 34 diabetic patients were studied. The concentrations of VEGF and IL-6 in plasma samples and in aqueous specimens obtained from the eyes during cataract surgery were measured by enzyme-linked immunosorbent assay. Results: Aqueous levels of VEGF and IL-6 were significantly correlated with the severity of diabetic retinopathy (rho = 0.793 and rho = 0.744, respectively). Vascular endothelial growth factor and IL-6 levels in aqueous humor were significantly correlated with the aqueous protein concentration (rho = 0.641 and rho = 0.646, respectively). The aqueous level of VEGF was significantly correlated with that of IL-6 (rho = 0.627). Aqueous levels of VEGF and IL-6 were also significantly correlated with the grade of fundus findings. Vascular endothelial growth factor and IL-6 concentrations were higher in the aqueous than in the plasma. Conclusion: The results of the current study suggest that there is a relationship between VEGF and IL-6 but the role of IL-6 in diabetic retinopathy is unclear and may warrant further investigation.
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