控制性低温对大鼠肢体爆炸伤后继发肺损伤的作用
发布时间:2018-06-17 19:28
本文选题:肢体爆炸伤 + 控制性低温 ; 参考:《第三军医大学学报》2007年17期
【摘要】:目的观察早期全身和局部控制性低温对大鼠肢体爆炸伤后继发肺损伤的作用,探讨控制性低温在肢体爆炸伤后继发肺损伤防治中的临床应用价值。方法采用大鼠肢体爆炸伤模型,动物按随机数字表法分为4组(每组8只):正常对照组(C)、单纯致伤组(Ⅰ:致伤)、全身低温组(Ⅱ:致伤+全身低温6h)和局部低温组(Ⅲ:致伤+局部低温6h);各组分别于致伤后6h取标本。测定肺TNF-α、IL-6、IL-10和MDA浓度;观察肺脏病理学变化。结果大鼠致伤6h后肺TNF-α、IL-6、IL-10和MDA浓度显著升高(P0.01);肺脏充血水肿和炎细胞浸润明显;致伤大鼠经全身低温或局部低温处理6h后肺、IL-6、IL-10及MDA浓度均明显降低(P0.05);肺脏充血水肿和炎细胞浸润程度明显减轻。结论早期全身或局部控制性低温可明显抑制肢体爆炸伤大鼠肺脏的炎性损伤和氧化损伤,减轻肺脏充血水肿和炎细胞浸润程度,有利于减轻爆炸伤后继发性肺损伤。
[Abstract]:Objective to observe the effect of early systemic and local controlled hypothermia on secondary lung injury after limb explosion injury in rats, and to explore the clinical value of controlled hypothermia in the prevention and treatment of secondary lung injury after limb explosion injury. Methods the rat limb explosion injury model was used. Animals were randomly divided into 4 groups (8 rats in each group: normal control group, simple injury group (鈪,
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