目的:探讨红细胞C_(3b)受体活性与血清锌水平、红细胞锌含量三者间的关系。方法:采用花环计数法测定红细胞C_(3b)受体活性;采用原子吸收分光光度法测定红细胞和血清锌含量。结果:慢活肝组红细胞C_(3b)受体活性和血清锌含量均降低,但红细胞锌含量与对照比较无差异。结论:本实验提示,红细胞C_(3b)受体活性降低可能主要与红细胞周围环境的变化有关。 Objective: To investigate the relationship between erythrocyte C_ (3b) receptor activity, serum zinc level and erythrocyte zinc level. Methods: The activity of C_ (3b) receptor of erythrocytes was determined by rosette counting method. The contents of erythrocyte and serum zinc were determined by atomic absorption spectrophotometry. Results: The activity of erythrocyte C_ (3b) receptor and the content of serum zinc decreased in slow - acting liver group, but there was no difference in the content of zinc in erythrocytes compared with the control. Conclusion: This experiment suggests that the decrease of erythrocyte C_ (3b) receptor activity may be mainly related to the changes of erythrocyte surrounding environment.