Objective: To investigate the role of subeschar tissue fluid (STF) in postburn cell damage. Methods: STF was collected from patients with full-thickness burn injury of 10% - 69% total body surface area (TFBSA) during ...Objective: To investigate the role of subeschar tissue fluid (STF) in postburn cell damage. Methods: STF was collected from patients with full-thickness burn injury of 10% - 69% total body surface area (TFBSA) during operation on postburn day 2 - 4, and that from guinea pigs were obtained in escharectomy 24 h after full-thickness scald injury of 30%’TBSA was induced. Respective incubation of human umbilical vein endothelial cells (HUVEC) and hepatocytes with STF were performed for the observation of the effects of STF on the activity, morphology, physiological function and monolayer cell permeability of HUVEC, and the percentages of apoptotic and necrotic hepatocytes were determined. Results: (l) STF had evident deleterious effect on endothelial cells. (2)are could induce apoptosis and necrosis of hepatocytes. Conclusion: STF plays an important role in causing early postburn damages.展开更多
To investigate the levels of cytokines in subeschar edema fluid (SEF). Methods: A guinea pig model with III°30% total body surface area (TBSA) was designed. SEF was collected serially at the time of escharectomy ...To investigate the levels of cytokines in subeschar edema fluid (SEF). Methods: A guinea pig model with III°30% total body surface area (TBSA) was designed. SEF was collected serially at the time of escharectomy for up to 72 h after scald injury. The levels of tumor necrosis factor.(TNFα), interleukin-6 (IL-6) and interleukin-8 (IL-8) were determined by using the enzyme-linked immunosorbent assay (ELISA). Results: The levels of TNFα,IL-6 and IL-8 in plasma and SEF increased in the early phase of scald injury. Furthermore, the contents of TNFα, IL-6 and IL-8 in SEF were higher than those in plasma.Conclusion: The findings indicate that the subeschar edema fluid is a biologically active reservoir, and is an important participant in the postburn pathophysiologic process.展开更多
文摘Objective: To investigate the role of subeschar tissue fluid (STF) in postburn cell damage. Methods: STF was collected from patients with full-thickness burn injury of 10% - 69% total body surface area (TFBSA) during operation on postburn day 2 - 4, and that from guinea pigs were obtained in escharectomy 24 h after full-thickness scald injury of 30%’TBSA was induced. Respective incubation of human umbilical vein endothelial cells (HUVEC) and hepatocytes with STF were performed for the observation of the effects of STF on the activity, morphology, physiological function and monolayer cell permeability of HUVEC, and the percentages of apoptotic and necrotic hepatocytes were determined. Results: (l) STF had evident deleterious effect on endothelial cells. (2)are could induce apoptosis and necrosis of hepatocytes. Conclusion: STF plays an important role in causing early postburn damages.
文摘To investigate the levels of cytokines in subeschar edema fluid (SEF). Methods: A guinea pig model with III°30% total body surface area (TBSA) was designed. SEF was collected serially at the time of escharectomy for up to 72 h after scald injury. The levels of tumor necrosis factor.(TNFα), interleukin-6 (IL-6) and interleukin-8 (IL-8) were determined by using the enzyme-linked immunosorbent assay (ELISA). Results: The levels of TNFα,IL-6 and IL-8 in plasma and SEF increased in the early phase of scald injury. Furthermore, the contents of TNFα, IL-6 and IL-8 in SEF were higher than those in plasma.Conclusion: The findings indicate that the subeschar edema fluid is a biologically active reservoir, and is an important participant in the postburn pathophysiologic process.