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TM、PAI-1在放射性肺损伤中的表达及意义 被引量:2

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摘要 目的:探讨大鼠肺组织受照射后凝血、抗凝血途径的变化情况。方法:7.0Gy、14.4Gy单次照射大鼠的右肺,在照射后的1、7、30d和90d,取受照肺组织进行HE、Masson染色检查;免疫组化检测肺组织中TM,PAI-1的表达,并采用病理图像分析软件对其结果进行分析。结果:光镜下7.0Gy照射组见轻微的炎症改变,未见明显的胶原形成;14.4Gy照射组出现明显的炎症改变,并可见明显的胶原形成。TM的表达,与对照组比较,7.0Gy组除照射后1d有统计学意义(P<0.05)外,其余各时点均无统计学意义(P>0.05);14.4Gy组除7d外,其余各时点均有统计学意义(P<0.05);PAI-1的表达,与对照组比较,7.0Gy组除照射后第90天外,其余各观察时点均有统计学意义(P<0.05);14.4Gy组在各观察时点均有统计学意义(P<0.05)。结论:肺的放射损伤呈明显的剂量依赖性;我们推测内皮细胞的放射损伤,在肺的放射损伤中起着基础性的作用;内皮细胞损伤导致了受照组织持续的凝血障碍,主要表现为高凝状态。
出处 《实用医学杂志》 CAS 北大核心 2011年第6期973-975,共3页 The Journal of Practical Medicine
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