Quick Search:         Advanced Search
Chinese Version
Online office
Journal Online
Download
Top
Links
刘丽,周宇,李双杰.黄芪甲苷对急性肝衰竭小鼠抗氧化、抗凋亡机制探讨[J].,2023,43(6):722-728
黄芪甲苷对急性肝衰竭小鼠抗氧化、抗凋亡机制探讨
Exploration on the Mechanism of Anti-Oxidation and Anti-Apoptosis of AstragalosideⅣ in Acute Liver Failure Mice
  
DOI:10.7661/j.cjim.20230509. 047
中文关键词:  急性肝衰竭  黄芪甲苷  小鼠  抗氧化  抗凋亡  中药
英文关键词:acute liver failure  Astragaloside -Ⅳ  mice  anti-oxidation  anti-apoptosis  Chinese herbal medicine
基金项目:浙江省卫生健康科技计划青年创新人才项目(No. 2022RC283);诸暨市医药卫生科技计划项目(No. 2020YW045)
Author NameAffiliation
刘丽,周宇,李双杰 1.诸暨市人民医院儿科(浙江 311800)
2.诸暨市人民医院重症监护室(浙江 311800)
3. 湖南省儿童医院肝病中心(长沙 410007) 
Hits: 241
Download times: 207
中文摘要:
      目的 研究黄芪甲苷(AS-Ⅳ)对急性肝衰竭小鼠转录因子NF-E2相关因子2( Nrf2) /血红素氧化酶-1(HO-1)和B淋巴细胞瘤-2基因(Bcl-2)/ Bcl-2相关X蛋白(Bax)表达的影响,并探讨其抗氧化、抗凋亡的作用机制。方法 将50只C57BL6雄性小鼠随机分为正常组,模型组,低、中、高剂量AS-Ⅳ组,每组10只。低、中、高剂量AS-Ⅳ组分别给予50、150、500 mg/(kg·d)AS-Ⅳ预处理3天,正常组和模型组仅给予助溶剂预处理,然后正常组腹腔注射生理盐水,余4组分别给予D-GalN/LPS腹腔注射建立急性肝衰竭小鼠模型。留取肝组织病理标本,采用Western Blot和Real-Time PCR技术检测各组Nrf2、HO-1、Bcl-2、Bax、半胱氨天冬蛋白酶-3(Caspase-3)蛋白及mRNA的表达水平。结果 与正常组比较,模型组小鼠肝组织Nrf2、HO-1、Bcl-2/Bax蛋白及mRNA表达降低(P<0.01),Caspase-3蛋白及mRNA表达增加(P<0.01)。与模型组比较,低剂量AS-Ⅳ组小鼠肝组织Nrf2蛋白及HO-1、Bcl-2/Bax蛋白及mRNA表达增加(P<0.01),Caspase-3蛋白及mRNA表达减低(P<0.01);中剂量AS-Ⅳ组Nrf2 mRNA及HO-1、Bcl-2/Bax蛋白及mRNA表达增加(P<0.05,P<0.01),Caspase-3蛋白及mRNA表达减低(P<0.01);高剂量AS-Ⅳ组Nrf2、HO-1、Bcl-2/Bax蛋白及mRNA表达增高(P<0.01),Caspase-3蛋白及mRNA表达下降(P<0.01)。与低剂量AS-Ⅳ组比较,中、高剂量AS-Ⅳ组HO-1、Bcl-2/Bax蛋白及mRNA表达升高(P<0.05,P<0.01),高剂量AS-Ⅳ组Nrf2蛋白及mRNA表达升高(P<0.05,P<0.01),Caspase-3蛋白及mRNA表达下降(P<0.05,P<0.01);与中剂量ASⅣ组比较,高剂量AS-Ⅳ组HO-1蛋白及mRNA、Bcl-2/Bax蛋白、Nrf2 mRNA表达升高(P<0.05,P<0.01),Caspase-3蛋白及mRNA表达下降(P<0.01)。结论 高剂量AS-Ⅳ对急性肝衰竭小鼠有保护作用,其机制可能与通过Nrf2增强HO-1的表达,减轻氧化应激所致急性肝损伤,以及上调Bcl-2的表达,降低Bax、Caspase-3水平,从而抑制肝细胞凋亡有关。
英文摘要:
      Objective To observe the effect of AstragalosideⅣ(AS-Ⅳ)on the expression of NF-E2-related factor 2(Nrf2)/heme oxygenase-1(HO) and Bcl-2/Bax in acute liver failure(ALF)mice, and to explore its mechanism of anti-oxidative and anti-apoptotic. Methods Fifty C57BL6 male mice were randomly divided into normal control group, model group, low dose AS-Ⅳ group, medium dose AS-Ⅳ group, and high dose AS-Ⅳ group, 10 mice in each group. Different dosage(50, 150, 500 mg-1·kg-1·d-1)of AS-Ⅳ was administrated by gavage to the three intervention groups for 3 days, at the same time, cosolvent was given to the normal control group and the model group. Then the normal control group was given normal saline by intraperitoneal injection, while the other 4 groups were given D-GalN and LPS by intraperitoneal injection to establish mice models of ALF. Liver histopathological specimens were retained, and the Nrf2, HO-1, Bcl-2, Bax, Caspase-3 protein and mRNA expression in liver tissues were detected by Western Blot and Real-Time PCR. Results Compared with the normal group, the expression of Nrf2, HO-1, and Bcl-2/Bax protein and mRNA in the liver tissue decreased(P<0.01), Caspase-3 protein and mRNA increased(P<0.01). Compared with the model group, the expression of Nrf2 protein, HO-1 and Bcl-2/Bax protein and mRNA increased(P<0.01), Caspase-3 protein and mRNA decreased(P<0.01)in the low dose AS-Ⅳ group. The expression of Nrf2 mRNA, HO-1, and Bcl-2/Bax protein and mRNA increased(P<0.05, P<0.01), Caspase-3 protein and mRNA decreased in the medium dose AS-Ⅳ group(P<0.01). The expression of Nrf2, HO-1,Bcl-2/Bax protein and mRNA increased(P<0.01), Caspase-3 protein and mRNA decreased in the high dose AS-Ⅳ group(P<0.01). Compared with the low dose AS-Ⅳ group,the expression of HO-1 and Bcl-2/Bax protein and mRNA increased(P<0.05,P<0.01)in the medium and high dose AS-Ⅳ group,the expression of Nrf2 protein and mRNA increase(P<0.05,P<0.01),Caspase-3 protein and mRNA decreased (P<0.05,P<0.01)in the high dose AS-Ⅳ group. Compared with the medium dose AS-Ⅳ group,the expression of HO-1 protein and mRNA,Bcl-2/Bax protein,Nrf2 mRNA increased(P<0.05,P<0.01),Caspase-3 protein and mRNA decreased(P<0.01)in the high dose AS-Ⅳ group. Conclusion Early administration of high dose AS-Ⅳ can protect mice against acute liver failure induced by D-GalN/LPS, its mechanism may be related to the enhanced expression of antioxidant protein HO-1 by Nrf2, which can alleviate the acute liver injury induced by oxidative stress, and the up-regulation of the expression of anti apoptosis protein Bcl-2, but down-regulation of Bax, Caspase-3, inhibiting hepatic apoptosis.
View Full Text  View/Add Comment  Download reader