Methods: The immunodeficient BARB/c mices model was prepared by hydroprednison acetate and then the changes of T-cell subsets leveles was detected by cytotoxicity assay.

• 方法：通过制备氢化泼尼松免疫低下的小鼠模型、用细胞毒试验测定小鼠T细胞亚群水平的变化。