Purpose:To study the relationship among high altitude pulmonary edema(HAPE) and nitric oxide(NO), nitric oxide synthase(NOS) and atrial natriuretic peptide(ANP).

• 目的：研究高原肺水肿的发生与血浆一氧化氮(NO)、一氧化氮合成酶(NOS)和心钠素(ANP)的关系。