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| 1 | Acute-on-chronic liver failure:Pathogenesis,prognostic factors and management显示文摘Acute-on-chronic liver failure(ACLF) is increasingly recognized as a complex syndrome that is reversiblein many cases. It is characterized by an acute deterioration of liver function in the background of a pre-existing chronic liver disease often associated with a high short-term mortality rate. Organ failure(OF) is always associated, and plays a key role in determining the course, and the outcome of the disease. The definition of ACLF remains controversial due to its overall ambiguity, with several disparate criteria among various associations dedicated to the study of liver diseases. Although the precise pathogenesis needs to be clarified, it appears that an altered host response to injury might be a contributing factor caused by immune dysfunction, ultimately leading to a pro-inflammatory status, and eventually to OF. The PIRO concept(Predisposition, Insult, Response and Organ Failure) has been proposed to better approach the underlying mechanisms. It is accepted that ACLF is a different and specific form of liver failure, where a precipitating event is always involved, even though it cannot always be ascertained. According to several studies, infections and active alcoholism often trigger ACLF. Viral hepatitis, gastrointestinal haemorrhage, or drug induced liver injury, which can also provoke the syndrome. This review mainly focuses on the physiopathology and prognostic aspects. We believe these features are essential to further understanding and providing the rationale for improveddisease management strategies. | Sara Blasco-Algora José Masegosa-Ataz María Luisa Gutiérrez-García Sonia Alonso-López Conrado M Fernández-Rodríguez | 2015 | World Journal of Gastroenterology2015，21，42： | 45 |
| 2 | Effect of Rheum palmatum L.on NF-κ B signaling pathway of mice with acute liver failure显示文摘Objective:To explore the regulation effect of Rheum palmatum(R.palmatum) L.on NF-κ.B signaling pathway of ALF mice.Methods:The intraperitoneal injection of D-GalN/LPS was employed for the model building.Mice in the treatment group and positive control group were given the R,palmatum L.and bifendate before the model building.Mice in the normal group were given the intraperitoneal injection of equivalent normal saline for continuously 3d.After 16 h of model building,the blood was collected from eyeballs of mice and then mice were executed.The measurement was performed on the content of ALT,AST,NO and 11-1βin the serum of mice in eaeh group,as well as the activity of Caspase 3 and Caspase 8 in the liver tissue.HE staining was employed to detect the pathological morphology of liver;and the western blot was used to detect the expression of iNOS,COX-2,Bax,Bcl-2,PCNA,NF-κ B p65 and I κ.B.Results:The content of ALT,AST,NO and I1-1β in the serum and the activity of Caspase 3 and Caspase 8 in the liver tissue were increased in the mice of ALF model group.Besides,the expression of iNOS,COX-2 and Bax was increased,the expression of Bcl-2 and PCNA was decreased,the phosphorylation of NF-κ B p65 and 1κ B was significant and the treatment group of R.palmatum L.could inhibit such change.Conclusions:Through NF-κB signaling pathway,the R.palmatum L.could reduce the content of enzyme of liver function and inflammation factor in the serum of ALF mice,regulate the expression of cell apoptosisrelated protein and improve the symptoms of ALF mice. | Rong-Zhen Zhang Hua Qiu Na Wang Fu-Li Long De-Wen Mao | 2015 | Asian Pacific Journal of Tropical Medicine2015，8，10： | 4 |
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