本实验研究长期被动吸烟对SD大鼠肺血流动力学和肺血管反应性的影响。
The effect of chronic passive cigarette smoking on pulmonary hemo-dynamics and vasoreactivity was studied in SD rats.
方法：通过被动吸烟和气道注射猪胰弹性蛋白酶（PPE）建立COPD大鼠模型。
Methods: A rat model of COPD was established by passive smoking and instillation of Porcine Pancreatic Elastase (PPE) into the airways.
目的了解左旋精氨酸对被动吸烟所致大鼠宫内发育迟缓及胎鼠脑发育的影响，通过其与NO、MDA和SOD的关系探讨其作用机制。
To explore the effects of L-arginine on the brains of fetal rats with IUGR and the relationship with the levels of NO, MDA and SOD.
目的了解左旋精氨酸对被动吸烟所致大鼠宫内发育迟缓及胎鼠脑发育的影响，通过其与NO、MDA和SOD的关系探讨其作用机制。
To explore the effects of L-arginine on the brains of fetal rats with IUGR and the relationship with the levels of NO, MDA and SOD.
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