通脉糖眼明胶囊对老龄大鼠视网膜损伤的保护作用
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篇名: | 通脉糖眼明胶囊对老龄大鼠视网膜损伤的保护作用 |
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摘要: | 目的:探讨通脉糖眼明胶囊对老龄大鼠视网膜损伤的保护作用。方法:将老龄大鼠(24月龄)随机分为通脉糖眼明胶囊高、中、低剂量组(1.750、0.875、0.378 g/kg)、阳性对照药组(羟苯磺酸钙胶囊,0.175 g/kg)和模型组,每组10只,ig给予相应的药物,每天1次,连续给药90 d。第90天给药结束时,另取1.5月龄大鼠10只作为空白对照组。将60只大鼠禁食不禁水12 h,股静脉取血,测定血清中谷胱甘肽过氧化物酶(GSH-Px)、微量还原型谷胱甘肽(GSH)、超氧化物歧化酶(SOD)、丙二醛(MDA)水平;取右眼球,以HE染色法观察视网膜病理变化,并对视网膜神经节细胞层(RCL)神经元进行计数。结果:与空白对照组比较,模型组大鼠血清中GSH-Px、GSH、SOD水平均降低,MDA水平升高,RCL神经元数为空白对照组大鼠的(59±4)%(P<0.05或P<0.01),视网膜有损伤;与模型组比较,阳性对照药组及通脉糖眼明胶囊各剂量组大鼠血清中GSH-Px、GSH、SOD水平均升高, MDA水平降低,RCL神经元数依次为空白对照组的(98±7)%、(69±5)%、(78±7)%、(95±6)%(P<0.05或P<0.01),视网膜损伤程度减轻。结论:通脉糖眼明胶囊能抑制老龄化诱导的视网膜脂质过氧化,并能阻止老龄大鼠视网膜神经元凋亡,对老龄化诱导损伤的大鼠视网膜有保护作用。 |
ABSTRACT: | OBJECTIVE: To explore the protective effects of Tongmaitang yanming capsules on retinal damage of aged rats. METHODS: Aged rats (aged 24 months) were randomly divided into Tongmaitang yanming capsule high-dose, medium-dose and low-dose groups (1.750, 0.875, 0.378 g/kg), positive control drug group (Calcium dobesilate capsules, 0.175 g/kg) and model group, with 10 rats in each group. They were given relevant medicine intragastrically once a day for consecutive 90 days. At the end of the 90th day, another 10 rats aged 1.5 months were included into blank control group. After medication, 60 rats were provided with water but no food for 12 hours. Blood sample was collected from femoral, and the serum levels of GSH-Px, GSH, SOD and MDA was determined, respectively; right eyes were sampled, pathological change of retina was observed by HE staining and the number of retinal cell layer (RCL) neurons was counted. RESULTS: Compared with blank control group, serum levels of GSH-Px, GSH and SOD decreased in model group, while MDA level increased; the number of RCL neurons was (59±4)% of blank control group (P<0.05 or P<0.01), and retina damage was found. Compared with model group, the serum levels of GSH-Px,GSH and SOD increased in positive control drug group and Tongmaitang yanming capsule groups, while MDA level decreased; the number of RCL neurons in those groups were (98±7)%, (69±5)%, (78±7)% and (95±6)% of blank control group, respectively (P<0.05 or P<0.01); retina damage was relieved. CONCLUSIONS: Tongmaitang yanming capsules can inhibit aging-induced lipid peroxidation of rat retina, prevent the progressive loss of retina neurons and protect aging-induced retina damage of rats. |
期刊: | 2016年第27卷第16期 |
作者: | 朴春梅,屈相玲,周训蓉 |
AUTHORS: | PU Chunmei,QU Xiangling,ZHOU Xunrong |
关键字: | 通脉糖眼明胶囊;老龄大鼠;视网膜损伤;抗氧化;视神经 |
KEYWORDS: | Tongmaitang yanming capsules; Aged rat; Retina damage; Antioxidant activity; Retinal neuron |
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