[1]杨丹,余德立,孙宝飞,等.五花血藤提取物对大鼠视网膜缺血再灌注损伤中凋亡相关因子表达的影响[J].眼科新进展,2020,40(9):806-810.[doi:10.13389/j.cnki.rao.2020.0184]
 YANG Dan,YU Deli,SUN Baofei,et al.Effects of sargentodoxa cuneata extracts on apoptosis related factors expression in rat retina after ischemical reperfusion injury[J].Recent Advances in Ophthalmology,2020,40(9):806-810.[doi:10.13389/j.cnki.rao.2020.0184]
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五花血藤提取物对大鼠视网膜缺血再灌注损伤中凋亡相关因子表达的影响/HTML
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《眼科新进展》[ISSN:1003-5141/CN:41-1105/R]

卷:
40卷
期数:
2020年9期
页码:
806-810
栏目:
实验研究
出版日期:
2020-09-05

文章信息/Info

Title:
Effects of sargentodoxa cuneata extracts on apoptosis related factors expression in rat retina after ischemical reperfusion injury
作者:
杨丹余德立孙宝飞康朝胜孙江龄余资江
550025 贵州省贵阳市,贵州医科大学基础医学院人体解剖学教研室(杨丹,孙宝飞,康朝胜,余资江);550001 贵州省贵阳市,贵州中医药大学临床二系眼科(余德立);550001 贵州省贵阳市,贵阳市口腔医院(孙江龄)
Author(s):
YANG Dan1YU Deli2SUN Baofei1KANG Chaosheng1SUN Jiangling3YU Zijiang1
1.Department of Anatomy,School of Basic Medicine,Guizhou Medical University,Guiyang 550025,Guizhou Province,China
2.Ophthalmology of 2nd Clinical,Guizhou University of Traditional Chinese Medicine,Guiyang 550001,Guizhou Province,China
3.Guiyang Hospital of Stomatology,Guiyang 550001,Guizhou Province,China
关键词:
视网膜缺血-再灌注损伤五花血藤提取物Bcl-2BaxCaspase-3
Keywords:
retinal ischemia-reperfusion injury sargentodoxa cuneata extracts Bcl-2 Bax Caspase-3
分类号:
R774.1
DOI:
10.13389/j.cnki.rao.2020.0184
文献标志码:
A
摘要:
目的 探讨五花血藤提取物(sargentodoxa cuneata extracts,SCE)对大鼠视网膜缺血-再灌注损伤(RIRI)中凋亡相关因子Bcl-2、Bax和Caspase-3蛋白表达的影响。方法 选取健康清洁级成年SD大鼠90只,随机分成对照组、RIRI组与SCE组,每组30只。于RIRI后6 h、12 h、24 h、48 h与72 h时,每组分别随机处死6只大鼠进行相关实验。通过Nissl染色观察各组大鼠视网膜神经细胞形态学的变化,免疫组织化学法检测各组大鼠视网膜内各细胞层凋亡相关因子Bcl-2、Bax和Caspase-3的表达。结果 对照组视网膜神经节细胞内Nissl小体丰富,染色较深,呈块状分布;RIRI组Nissl小体较对照组少,染色浅且分布不均;SCE组染色情况均较RIRI组有所改善。Bcl-2蛋白在对照组中几乎不表达,在24 h RIRI组中其阳性表达开始增强,48 h时达到高峰,在SCE组各个时间点上Bcl-2蛋白阳性表达均多于RIRI组,差异均有统计学意义(均为P<0.05)。Bax蛋白在对照组中略有表达,在12 h RIRI组中其阳性表达持续增多,24 h时达到高峰,在SCE组各个时间点上Bax蛋白阳性表达均低于RIRI组,差异均有统计学意义(均为P<0.05)。Caspase-3蛋白在对照组中几乎不表达,在6 h RIRI组中表达开始升高,12 h时达到高峰,在SCE组各个时间点上Caspase-3蛋白阳性表达均低于RIRI组,差异均有统计学意义(均为P<0.05)。结论 SCE可能通过上调Bcl-2蛋白表达的同时下调Bax、Caspase-3蛋白的表达来发挥抗凋亡作用,从而对大鼠RIRI起到保护作用。
Abstract:
Objective To investigate the effect of sangntodoxa cuneata extracts (SCE) on the expression of apoptosis related factors Bcl-2, Bax and Caspase-3 in rats with retinal ischemia-reperfusion injury (RIRI).Methods Ninety healthy and clean adult SD rats were randomly divided into control group, RIRI group and sargentodoxa cuneata extracts (SCE) group, 30 rats in each group. Then the 6 rats were sacrificed at 6h, 12h, 24h, 48h and 72h during reperfusion time for experiment. Nissl staining was used to observe the morphological changes of neural cells in each layer of retina in each group, and immunohistochemistry was used to detect the expression of apoptosis related factors Bcl-2, Bax and Caspase-3 in each layer of retina before and after SCE treatment.Results Nissl bodies were abundant, stained deeply and distributed in blocks in the control group. In the RIRI group, the nissl bodies were less than those in the control group, with light staining and uneven distribution. However, the staining of SCE group was better than that of the RIRI group. In the control group, the expression of Bcl-2 protein was almost non-existent, and the positive expression began to increase at 24 h after reperfusion, reaching the peak at 48 h after reperfusion. The positive expression of the SCE group was higher than that of the RIRI group at according time point (all P<0.05). Bax protein was slightly expressed in the control group, and the positive expression increased continuously after 12 h of reperfusion, reaching the peak at 24 h. The positive expression of SCE group was lower than that of the RIRI group at according time point (all P<0.05). In the control group, the expression of Caspase-3 protein was almost non-existent, it began to increase at 6h after reperfusion, reaching the peak at 12h. The positive expression in the SCE treatment group was lower than that in the model group in every period (all P<0.05).Conclusion SCE may up-regulate the expression of Bcl-2 protein and down-regulate the expression of Bax and Caspase-3 protein, so as to play the role of anti-apoptosis and protect the retinal ischemia-reperfusion injury in rats.

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备注/Memo

备注/Memo:
国家自然科学基金资助项目(编号:81760573);贵州省科学技术厅资助项目(编号:黔科合LH[2015]7345)
更新日期/Last Update: 2020-09-05