为观察人进入高原后机体体液免疫力的改变,本文检测了健康人群(n=33)由海拔2260m进入海拔4800m前后血清Ig(IgG、IgA、IgM)、C_3、CH_(50)及ERFC水平的变化。结果表明,进入高原后早期人体体液免疫指标无明显改变;对应用缺氧代偿率区别出来的3个不同适应水平组群进行比较,其免疫指标也无显著性差异。由此提示,人进入高原后早期体液免疫功能无障碍。 In order to observe the change of humoral immunity in human body after entering the plateau, the levels of serum Ig (IgG, IgA, IgM), C_3, CH_ (50) and ERFC in healthy subjects (n = 33) Variety. The results showed that there was no significant change of body fluid immune index in the early stage after entering the plateau. There was no significant difference in the immunological indexes between the three groups with different adaptive levels discriminated by the rate of hypoxia. This prompted that people enter the plateau early humoral immune function barrier.