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本文应用血气分析仪测定分析了红芪对油酸致肺损伤大鼠Ｐ（Ａ－ａ）ＤＯ２变化的影响，应用电子显微镜观察了其气－血屏障超微结构的变化。结果：红芪能减少油酸型ＲＤＳ大鼠Ｐ（Ａ－ａ）ＤＯ２，维持肺有效的摄氧功能；能保护肺泡上皮细胞和毛细血管内皮细胞，使气体通过气－血屏障的弥散基本正常。本文为红芪治疗ＲＤＳ提供了理论依据。
In this paper, the effect of Hungsu on the change of P(A-a)DO2 in rats with oleic acid-induced lung injury was determined by blood gas analyzer. The ultrastructure of air-blood barrier was observed by electron microscopy. Results: Red peony can reduce P(A-a)DO2 in oleic acid-type RDS rats and maintain effective oxygen uptake in lungs. It can protect alveolar epithelial cells and capillary endothelial cells, and the diffusion of gas through gas-blood barrier is almost normal. . This article provides a theoretical basis for the treatment of RDS by Hung Hom.