Effects of Yupingfeng Powder on Immune Function of Rats with Lung-qi Deficiency Syndrome / 中国药房

ABSTRACT

OBJECTIVE:To study the effects of Yupingfeng powder on immune function of rats with lung-qi deficiency syn-drome. METHODS:60 SD rats were randomly divided into normal group,model group,positive group [Renshen beiqi tablet 0.6 g (crude drug)/kg] and Yupingfeng powder high-dose,medium-dose and low-dose groups [24,12,6 g (crude drug)/kg],with 10 rats in each group. Except for normal group,those groups were given SO2+comprehensive cold stimulation to induce lung-qi defi-ciency syndrome model. After modeling,treatment groups were given relevant drug solutions intragastrically,and normal group and model group were given constant volume of normal saline intragastrically,once a day,for consecutive 13 d. After administra-tion,serum levels of IL-3 and IL-6,the proportion of CD3+,CD4+,CD8+in T lymphocyte were determined,and pathological chang-es of lung and bronchus were observed. RESULTS:Compared with normal group,serum levels of IL-3 and IL-6 and the propor-tion of CD8+ in T lymphocyte increased significantly in model group,while the proportions of CD3+ and CD4+ in T lymphocyte and the ratio of CD4+/CD8+ decreased(P<0.01);obvious lung and bronchus injury and inflammatory reaction were observed. Compared with model group,serum level of IL-3 decreased significantly in positive group and Yupingfeng powder high-dose group;serum level of IL-6 and the proportion of CD8 + in T lymphocyte decreased significantly in positive group and Yupingfeng powder high-dose and medium-dose groups,while the proportion of CD3+ in T lymphocyte increased significantly;the proportion of CD4+and the ratio of CD4+/CD8+increased significantly in treatment groups(P<0.05 or P<0.01);lung and bronchial injury,and inflam-mation reaction were relieved. CONCLUSIONS:Yupingfeng powder can enhance immune function of rats with lung-qi deficiency syndrome.