请输入关键字
确定
请输入关键字
确定
急性肝损伤小鼠模型

一、APAP诱导的急性肝损伤模型 


Yoon E ,  Babar A ,  Choudhary M , et al. [J]. Journal of Clinical & Translational Hepatology, 2016, 4(2):131-142.

APAP is taken up in the intestine within the first 2 hours after oral administration, metabolized in the liver via glucoronidation and sulfonation, and excreted in the urine. A small fraction (10-15%) is metabolized in hepatocytes by cytochrome P450 isomers to the alkylated, highly toxic metabolite N-acetyl-p-benzoquinoneimine (NAPQI). Antioxidant glutathione (GSH) converts NAPQI to the less harmful reduced form, which is then excreted via bile. When glutathione is depleted, increasing amounts of NAPQI bind to mitochondrial proteins and leading to hepatocyte necrosis.

Celastrol对APAP诱导的肝炎模型的体内疗效


from clipboard

(A) Celastrol treatment alleviate increased ALT and AST enzyme activity induced by APAP. 


Celastrol对肝损伤的保护作用

from clipboard

Protective effects of Celastrol in liver injury. Coagulative necrosis and bruising of cells in the marginal zone of the hepatic lobules were seen to varying degrees in the livers of the modeled animals, and the Celastrol treatment group showed significant improvement in the pathology.


Celastrol 减少 APAP 诱导的模型的细胞凋亡


from clipboard

Celastrol reduced apoptosis in APAP induced liver injury. (A) Tunel staining showing apoptosis in hepatic cells. (B) Statistic data of Tunel positive staining. 


 二、ConA诱导的急性肝损伤模型 

from clipboard

Heymann F, Hamesch K, Weiskirchen R, Tacke F.. Lab Anim. 2015 Apr;49(1 Suppl):12-20.

The pathogenesis and pathological changes in the ConA-induced mouse hepatitis model, in which liver injury is mediated by T cell and macrophage activation, partially mimic those of human autoimmune hepatitis, and therefore this model has been widely used to study the pathogenesis, pathological changes, and clinical treatment of diseases such as autoimmune hepatitis. Hepatocyte apoptosis, necrosis, and leukocyte infiltration are seen as prominent features of immune hepatitis. In this model, activated T cells and macrophages infiltrate the liver tissue mesenchyme and induce the secretion of several pro-inflammatory factors, such as TNF-α, IFN-γ, IL-1β and IL-2. 


Celastrol对ConA诱导的肝炎模型的体内疗效

from clipboard

Detection of liver injury-related factors in a ConA-guided NASH model after Celastrol intervention. (A) Celastrol treatment alleviate increased ALT and AST enzyme activity induced by ConA . 

Celastrol 对 ConA 诱导的模型中细胞因子水平的影响

from clipboard

(B) Celastrol treatment alleviate increased cytokines levels induced by Con A. *:P<0.05; **:P<0.01; ***:P<0.001 compared with ConA group.


 Celastrol对肝损伤的保护作用

from clipboard

Analysis of H&E staining in the protective effect of Celastrol on ConA induced NASH mouse models.Coagulative necrosis and bruising of cells in the marginal zone of the hepatic lobules were seen to varying degrees in the livers of the modeled animals, and the Celastrol treatment group showed significant improvement in the pathology.

Celastrol 减少 ConA 诱导的模型的细胞凋亡

from clipboard

Pathological analysis in the protective effect of Celastrol on ConA induced NASH mouse models. (A) Tunel staining showing apoptosis in hepatic cells. (B) Statistic data of Tunel positive staining. 


三、可提供服务内容

from clipboard