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[摘要]
目的:研究不同浓度的薏苡仁油对体外高糖条件下培养的人视网膜血管内皮细胞(HRCECs)增殖及血管内皮生长因子(VEGF)表达的影响。
方法:将新鲜人眼球提取的HRCECs进行体外培养,最终用于实验的为生长良好的第3~4代细胞,实验分为空白对照组、低糖对照组、高糖对照组,高糖+不同浓度(50μL/mL,100μL/mL,200μL/mL)薏苡仁油组。不同浓度的薏苡仁油对体外培养的HRCECs增殖的抑制作用是通过用噻唑蓝比色法(MTT)检测。各分组HRCECs中VEGF的表达由免疫细胞化学法检测。
结果:MTT比色法结果显示:不同浓度的薏苡仁油作用于体外培养的HRCECs 48h,其细胞增殖抑制与高糖对照组相比有显著性差异(P<0.05)。48h内呈浓度依赖性。而低糖对照组与高糖对照组差异无统计学差异(P>0.05)。免疫细胞化学检测法表明:用50,100,200μL/mL的薏苡仁油作用于高糖下HRCECs 48h,高糖+不同浓度薏苡仁油组与高糖对照组相比VEGF表达下降明显(P<0.05),将高糖+不同浓度薏苡仁油组之间进行两两比较亦具有统计学意义(P<0.05)。且呈浓度依赖性。高糖对照组与低糖对照组相比,VEGF表达明显(P<0.05)。
结论:薏苡仁油可抑制高糖环境下HRCECs的增殖和VEGF的表达。
[Key word]
[Abstract]
AIM: To study the effects of different concentrations of Coix seed oil on human retinal capillary endothelial cells(HRCECs)proliferation and vascular endothelial growth factor(VEGF)expression in high glucose environment.
METHODS: HRCECs extracted from human fresher eyeball and cultured in vitro, and ultimately used in the experiment were the growth of 3rd~4th cells, the experimental were divided into blank control group, low glucose control group, high glucose control group, high glucose +(50μL/mL, 100μL/mL, 200μL/mL)different concentrations Coix seed oil group. Detecting the multiplication of HRCECs by MTT, the immunocytochemical method was employed to detect the each group HRCECs of VEGF expression.
RESULTS:MTT assay results showed that: different concentrations of coix seed oil acted at HRCECs for 48h, inhibition of cell proliferation was significant difference compared with high glucose control group(P<0.05). Within 48h showed concentration dependence. There was no statistical difference between the low glucose group and high glucose control group(P>0.05). Immunocytochemical assay showed that: 50μL/mL, 100μL/mL, 200μL/mL Coix seed oil acted at HRCECs 48h, the expression of VEGF decreased significantly compared with the high glucose control group(P<0.05), and in a dose-dependent manner. However, in high glucose control group, the expression of VEGF was obvious higher than that of low glucose control group(P<0.05).
CONCLUSION:Coix seed oil can inhibit the HRCECs proliferation and suppress the VEGF expression in high glucose environment.
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