ABSTRACT
OBJECTIVE: To observe the effects of peroxisome proliferators-activated receptor-gamma (PPARgamma) on the function of the vital organs in rats with pancreatitis. METHODS: Acute pancreatitis (AP) was induced in 30 male SD rats by ductal injection of 4% sodium taurocholate at 1.0 ml/kg. The rats received subsequent intravenously injection of 0.3 mg/kg of PPARgamma ligand (rosiglitazone, n=10), PPARgamma antagonist (GW9662, n=10) followed 10 min later by rosiglitazone administration at 0.3 mg/kg, or left untreated (AP model group, n=10). Another 10 male SD rats receiving no particular treatment served as the control group. The rats were sacrificed 6 h after the operation, and blood samples were collected for measurement of the biochemical indices of the vital organs. The histological changes of the pancreas and portal vein blood endotoxin content were examined. RESULTS: The rats in AP group and GW9662 group showed significantly higher level of the biochemical indices for the vital organs, pathological scores of the pancreas and portal vein blood endotoxin content were significantly higher in the control group and roglitazone-treated groups (P<0.05). CONCLUSION: PPARgamma ligand roglitazone can significantly ameliorate multiple organ injuries and effectively protect the functions of the organs in rats with experimental pancreatitis.
Subject(s)
Multiple Organ Failure/prevention & control , PPAR gamma/metabolism , Pancreatitis, Acute Necrotizing/drug therapy , Thiazolidinediones/therapeutic use , Anilides/pharmacology , Animals , Hypoglycemic Agents/administration & dosage , Hypoglycemic Agents/therapeutic use , Injections, Intravenous , Male , NF-kappa B/metabolism , PPAR gamma/agonists , PPAR gamma/antagonists & inhibitors , Random Allocation , Rats , Rats, Sprague-Dawley , Rosiglitazone , Thiazolidinediones/administration & dosageABSTRACT
OBJECTIVE: To investigate the relationship between the circulating endothelial cell (CEC), coagulation, fibrinolysis indexes and inflammation related cytokines in patients with multiple organ dysfunction syndrome (MODS). METHODS: Thirty-five patients with MODS (MODS group) and 20 healthy individuals (control group) were enrolled for study. CECs were harvested by isopycnic centrifugation method. Plasma prothrombin time (PT), activated partial thromboplastin time (APTT), fibrinogen (FG), D-dimer, and serum tumor necrosis factor-alpha (TNF-alpha), interleukin-6 (IL-6) were determined simultaneously. The relationship between dynamic changes in CEC, TNF-alpha, IL-6 and that in PT, APTT, FG, D-dimer was analyzed. RESULTS: Compared to the control group, CEC numbers, serum TNF-alpha, IL-6 levels and plasma D-dimer level significantly increased, PT and APTT were prolonged, and FG significantly decreased in MODS group (all P<0.05). The quantity of CEC and serum levels of TNF-alpha and IL-6 elevated with the lapse of time. Correlation analysis revealed a significant positive correlation between CEC and serum levels of TNF-alpha and IL-6 (r(1)=0.536, P(1)=0.000; r(2)=0.412, P(2)=0.002), and the same correlation between serum TNF-alpha, IL-6 levels and PT, APTT. CONCLUSION: Elevation of serum inflammation related cytokines and vascular endothelial cell damage occur in MODS patients. Serum inflammation related cytokines play an important role in endothelial damage, and an increase in CEC number may be attributed to vessel injury.
