Es had been 2.1 ?0.7 and 2.1 ?0.six, respectively, with no important differences among the

Es had been 2.1 ?0.7 and 2.1 ?0.six, respectively, with no important differences among the groups. The initial PEEP worth of Group Elaspol was 5.9 ?three.3, which was drastically higher than that of Group Manage (3.4 ?two.7 cmH2O). The PaO2/FIO2 ratios under mechanical ventilation management 24, 48 and 72 hours following the starting of drug administration had been 209 ?87, 222 ?92, and 222 ?82 mmHg in Group Elaspol, and had been 191 ?91, 207 ?91, and 211 ?one hundred mmHg in Group Manage. The ventilator-free days of Group Elaspol and Group Handle were 18 ?9 and 10 ?12 days, respectively, and these values showed a considerable distinction (P < 0.001). Furthermore, the survival rate after 28 days was significantly higher in Group Elaspol than in Group Control (GroupIntroduction Many patients who experience surgical stress including burn injury become susceptible to severe sepsis and septic organ dysfunction including acute lung injury (ALI), which remains the primary contributor to morbidity and mortality in burn patients. Proinflammatory cytokines including several chemokines are implicated in this process. The pharmacological modulation with steroid inhibiting the process of cytokine synthesis may serve as effective therapy for the prevention of tissue injury and the resultant organ dysfunction including respiratory failure. We developed a murine model of septic ALI after burn insult and examined the effects of 4μ8C biological activity prolonged administration of moderate doses of steroid. Methods Male BALB/c mice were divided into three groups. Group I served for sham burns. In groups II and III, a 15 BSA fullthickness burn was made on the dorsum under ether anesthesia, followed by adequate fluid resuscitation. After the burn injury, 3 mg/kg prednisolone (PSL) in group III was administered subcutaneously daily for 10 days. On the 11th day, 10 mg/kg lipopolysaccharide (LPS) was injected intravenously. In the first experiment, we observed the survival within 72 hours after LPS injection in each group (n = 10). In the second experiment, we sacrificed the animals at 12 hours after LPS injection, then obtained plasma and lung tissue to determine the levels of TNF and macrophage inflammatory protein-2 (MIP-2, a functional homologue of human IL-8 in mice) in these samples (n = 8, sandwich ELISA). We also determined gene expression (n = 4, MIP2/GAPDH mRNA ratio by RT-PCR), myeloperoxidase activities (MPO, n = 8) and histopathological findings in the lung tissue. Results The survival and production of cytokines are shown in Table 1. Histopathological findings in group III were obviously attenuated.Table 1 (abstract P23) Lung MIP-2/ Plasma Lung GAPDH MIP-2 MIP-2 mRNA (pg/ml) (pg/mg) ratio 6,396 791?70.0 11.6?0.345 0.975 0.052?Group I (sham PS) II (burn PS) III (PSL)Survival ( ) 100 0 50*Plasma TNF (pg/ml) 1,190 749?Lung MPO (U/mg) 0.405 0.574** 0.244?3,024** 13,766** 142.5**Mean values are presented. *P < 0.05 vs group II, **P < 0.005 vs group I, P < 0.01 vs group I, P < 0.05 vs group I, �P < 0.005 vs group II.Conclusions In this animal model, a pretreatment with PSL as the cytokine synthesis inhibitor improved the survival and attenuated the production of cytokines. The complications associated with sepsis after burn insults, especially ALI, could PubMed ID:http://www.ncbi.nlm.nih.gov/pubmed/20799121 be preventable by the pharmacological modulation with prolonged administration of moderate doses of steroid.SCritical CareMarch 2007 Vol 11 Suppl27th International Symposium on Intensive Care and Emergency MedicineP24 Glucosamine enhances heat shoc.