大鼠骨骼肌损伤后PMN、MNC及FBC百分率与损伤时间关系

Fa yi xue za zhi(2014)

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Abstract
目的:研究大鼠骨骼肌机械性损伤后不同时间点多形核白细胞(polymorphonuclear leucocytes , PMN)、单个核细胞(mononuclear cells,MNC)及成纤维样细胞(fibroblastic cells,FBC)百分率的变化。方法建立大鼠骨骼肌机械性损伤动物模型,随机分为伤后6h、12h、1d、3d、7d、10d、14d及正常对照组。应用HE染色法和图像分析检测大鼠骨骼肌损伤后不同时间点PMN、MNC及FBC百分率。结果伤后6~12 h,损伤区内可见PMN和MNC浸润,PMN百分率达到峰值;伤后1 d,损伤区内主要以MNC浸润为主,MNC百分率达到峰值,而PMN百分率开始下降;伤后3~7 d,FBC百分率开始逐渐增加,PMN和MNC百分率则逐渐下降;伤后10~14 d,FBC百分率达到峰值。结论大鼠骨骼肌损伤区内PMN、MNC及FBC百分率呈时间规律性变化,有望成为骨骼肌损伤时间推断的参考指标。
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Key words
forensic pathology,wounds and injuries,muscle,skeletal,polymorphonuclear leucocytes,mononuclear cells,fibroblastic cells,rats
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