氧是机体及细胞进行有效能量代谢不可缺少的物质,低氧使机体及细胞的生理功能发生改变,严重时可引起一系列损伤和疾病。为适应低氧环境,生物经过长期进化,已形成一套完整的氧感受机制及在不同氧环境下的基因表达调控机制,以适应低氧环境,达到生存的目的。生物体对外界环境刺激? Oxygen is an indispensable substance in the body and cells for effective energy metabolism. Hypoxia changes the physiological functions of the body and cells. In severe cases, it can cause a series of injuries and diseases. In order to adapt to hypoxia environment, after long-term evolution of organisms, a complete set of oxygen sensing mechanisms and gene expression regulation mechanisms in different oxygen environments have been formed to adapt to the hypoxic environment and achieve the goal of survival. Organisms on the external environment to stimulate?