缺氧性肺动脉高压是临床许多心肺疾病发生、发展过程中 ,重要的病理生理环节 ,但其形成机制还不清楚。对其深入研究 ,无疑对深化缺氧性肺动脉高压的发病理论 ,提高其防治水平有重要意义。一氧化氮 (ＮＯ)是近年来发现的新型气体信号分子 ,参与机体循环等多系统生理与病理生理过 Hypoxic pulmonary hypertension is the clinical pathophysiology of many cardiopulmonary diseases, the development process, but its mechanism of formation is unclear. To its in-depth study, undoubtedly deepen the pathogenesis of hypoxic pulmonary hypertension and improve their level of prevention is of great significance. Nitric oxide (NO) is a new type of gas signaling molecule discovered in recent years. It participates in many systemic and pathophysiological processes such as circulatory system