安徽医科大学学报2016，Vol.51Issue(7)：961-964,4.
糖尿病大鼠病程不同阶段角膜上皮紧密连接蛋白 claudin－1表达的变化
Effects of hyperglycemia on the expression of corneal epithelial tight junction protein claudin-1 in type 2 diabetic rats
摘要
Abstract
Objective To assess the expression of the corneal epithelial TJ protein claudin -1 in type 2 diabetic rats at different time points.Methods 80 eight-week-old male SD rats were randomly divided into the normal control and diabetic mellitus(DM) groups(n =40 each).A high-fat diet combined with STZ injection was used to induce type 2 DM.Normal and diabetic rats were sacrificed at 4, 8, 16 weeks respectively(after STZ injection) before de-bridement.Hematoxylin and eosin was used to study the morphological differences between normal and diabetic cor -nea.Immunofluorescene and Western blot were used to determine the expression of corneal epithelial TJ protein claudin-1.Results Corneal epithelial cells reduction and stroma edema were evident at 8 and 16 weeks by HE. Claudin-1 expression in the corneal epithelium of the diabetic group was lower and fainter compared to the normal group at 16 weeks(after STZ injection)(P <0.05), which were similar to the normal group at 4 and 8 weeks.Con-clusion Continual hyperglycemia has a negative effect on ocular surface tissues and the expression of corneal epi -thelial tight junction protein claudin -1 with progressing of type 2 diabetic mellitus.关键词
糖尿病/角膜上皮/紧密连接蛋白/免疫荧光染色/Western blotKey words
diabetes mellitus/tight junction/corneal epithelium/immunofluorescence staining/Western blot分类
医药卫生引用本文复制引用
倪梦圆,廖荣丰..糖尿病大鼠病程不同阶段角膜上皮紧密连接蛋白 claudin－1表达的变化[J].安徽医科大学学报,2016,51(7):961-964,4.基金项目
安徽高校省级自然科学基金(KJ2012A166) ,安徽省自然科学基金(1408085MH191) （KJ2012A166）
