大豆异黄酮(soyaiso flavones,SIF)作为一种从植物体内获取的类雌激素,既有以降脂、抗氧化来增加动脉血管的顺应性,扩张血管的作用,又有以类雌激素和抗雌激素的双重作用影响高原造血系统,是一种有效改善机体内环境的生物类保健食品。本文通过观察吸氧及吸氧+大豆异黄酮对高原人群血红蛋白值的变化,旨在研究大豆异黄酮对高原红细胞增多症发生、 Soybean isoflavones (SIF), as a kind of estrogen derived from plants, not only can increase arterial compliance and vasoconstriction with lipid-lowering and anti-oxidation, but also have the functions of estrogen- The dual role of hormones affect the plateau hematopoietic system is a kind of bio-based health food to effectively improve the body’s environment. In this paper, by observing the changes of hemoglobin value of oxygen inhalation and oxygen-enriched soy isoflavones in high altitude population, the purpose of this study is to investigate the effect of soy isoflavones on the occurrence of high altitude polycythemia,