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1. An injection of D-galactosamine (GalN) into mice together with a lipopolysaccharide (LPS or endotoxin), interleukin-1 (IL-1) or tumour necrosis factor (TNF), sensitized the mice and induced fulminant hepatitis with severe congestion resulting in rapid death. Since LPS and these cytokines induce
Eighteen and twenty-four hours after intraperitoneal administration of D-galactosamine (1g/kg body weight) to rats, the activity of caspase-3-like protease in the liver increased significantly compared with that in the control group given saline. Histological examinations including the in situ
Intravenous administration of tumor necrosis factor-alpha (TNF-alpha) (0.5 microg/mouse) caused hepatocyte apoptosis in BALB/c mice when they were sensitized with D-galactosamine (GalN, 20 mg/mouse). Activation of nuclear factor kappa B (NF-kappa B) and expression of apoptotic Bcl-2 family members
BACKGROUND
Prostaglandin E1 (PGE1) reduces cell death in experimental and clinical liver dysfunction.
OBJECTIVE
Whether PGE1 protects against D-galactosamine (D-GalN)-associated hepatocyte cell death by the regulation of tumour necrosis factor-alpha (TNF-alpha) and/or nitric oxide (NO) in
Tumor necrosis factor (TNF) alpha-induced neutral sphingomyelinase-mediated generation of ceramide, a bioactive lipid molecule, is transduced by the adaptor protein FAN, which binds to the intracellular region of the CD120a TNFalpha receptor. FAN-deficient mice do not exhibit any gross abnormality.
OBJECTIVE
The aim was to determine the action mode of cornel iridoid glycoside (CIG) from Fructus corni on hepatoprotective activities, the effects of CIG on human hepatocyte cell line (L02) injured by D-galactosamine (GalN) and tumor necrosis factor-α (TNF-α) were examined.
METHODS
The percentage
It has been reported that α-tocopherol (α-Toc), a vitamin E analog, is effective for treatment of non-alcoholic steatohepatitis (NASH). However, it is unknown whether or not other vitamin E analogs are effective. Therefore we designed a new rat model of steatohepatitis induced by tumor necrosis
The present study was designed to investigate the effects of benzyloxicarbonyl-L-phenylalanyl-alanine-fluoromethylketone (Z-FA.FMK), an inhibitor of cathepsin B on lung injury that occurs concurrently with liver injury induced by D-galactosamine/tumor necrosis factor-alpha (D-GalN/TNF-alpha). Four
Polymyxin B (PMB), an antibiotic with anti-endotoxin activity, was used to examine the participation of endogenously produced endotoxin in the enhancement of recombinant human tumor necrosis factor (rhTNF)-induced toxicity in D-galactosamine (GalN)-sensitized mice. GalN-sensitized mice (700 mg/kg,
OBJECTIVE
To study the effects of matrine (Mat) on lipopolysaccharides (LPS)-induced fatal hepatitis in D-galactosamine (D-GalN)-sensitized mice and tumor necrosis factor (TNF) release from peritoneal macrophages (PMO).
METHODS
Mice were pretreated with Mat (10, 50 mg.kg-1, i.p., bid x 3 d), and
D-Galactosamine is an hepatocyte-specific inhibitor of RNA synthesis. It has been used to sensitize animals both to the lethal effects of bacterial endotoxin (lipopolysaccharide) and to a principal lipopolysaccharide-induced mediator of shock, tumor necrosis factor-alpha. The mechanism by which this
In previously published studies, we had demonstrated that hydrazine sulfate pretreatment protected mice against the lethal effects of endotoxin and that this protection was accompanied by a sustained increase in hepatic phosphoenolpyruvate carboxykinase activity (Silverstein, R., C.A.
Recent studies have suggested an association between tumor necrosis factor-alpha (TNF-alpha) and the development and progression of acute liver failure. To investigate the role of TNF-alpha in the mechanism of massive hepatic necrosis, we studied a mouse model of TNF-alpha and D-galactosamine (GalN)
The susceptibility of NC/Nga mice to tumor necrosis factor (TNF)-alpha was examined by using sensitization with d-galactosamine (d-GalN). Administration of TNF-alpha and d-GalN killed none of the NC/Nga mice, whereas it killed all of the BALB/c mice. Treatment with TNF-alpha and d-GalN caused few
High-mobility group box 1 (HMGB1) protein is released into the serum after tissue damage, and serves as a warning signal to enhance the inflammatory response. Acute liver injury is one of the diseases that starts with tissue damage and ends with systemic inflammation. We used D-(+)-galactosamine