The level of NO increases and the activity of GSH PX decreases in SAS patients, which leads to the imbalance between the abiltiy of antioxidation and the ability of oxidation to result in the in crease of LPO level.

• SAS患者NO水平升高 ,GSH PX活性降底导致其氧化和抗氧化能力失衡 ,LPO升高。