动脉平滑肌细胞内脂过氧化物含量增加，超氧化物歧化酶活性减弱，与动脉粥样硬化的发生有着重要的关系．本实验通过对家兔主动脉平滑肌细胞进行体外培养，观察到中药疏肝活血方可以显著降低平滑肌细胞内脂过氧化物含量，明显提高超氧化物歧化酶活性。实验结果提示中药疏肝活血方可能有使动脉粥样硬化病变减轻和趋向静止的作用。 The increase of lipid peroxidation and the decrease of SOD activity in arterial smooth muscle cells have an important relationship with the occurrence of atherosclerosis. In this experiment, rabbit aorta smooth muscle cells were cultured in vitro. It was observed that Shugan Huoxue Decoction can significantly reduce the content of lipid peroxide in smooth muscle cells and significantly increase the activity of superoxide dismutase. The experimental results suggest that the traditional Chinese medicine Shugan Huoxue may reduce atherosclerotic lesions and tend to be static.