Objective: To explore the impact of L arginine ( L Arg ) on apoptosis of smooth muscle cells in pulmonary arteries of the rats with hypoxic pulmonary vascular structural remodeling.

• 目的 :探讨L 精氨酸 (L arginine ,L Arg)对低氧性肺血管结构重建大鼠肺动脉平滑肌细胞凋亡的影响及其机制。