补肾健脾三方对哮喘大鼠糖皮质激素受体及皮质酮的影响

目的：探讨补肾健脾方龟芪散、补肾方补肾定喘汤、健脾方加味六君子汤等扶正三方对连续激发哮喘的大鼠肺组织糖皮质激素受体（ＧＣＲ）及血浆皮质酮水平的调节作用。方法：将给予扶正三方和必可酮的大鼠列为治疗组，哮喘模型大鼠列为对照组，采用放射配基结合分析和放射竞争性蛋白结合分析法，比较观察药物对连续激发哮喘的大鼠肺组织ＧＣＲ及血浆皮质酮水平的影响。结果：哮喘激发后肺组织胞浆ＧＣＲ的结合位点数（ＲＴ）值逐日下降，血浆皮质酮水平降低。激发第７天，扶正三方可显著上调ＧＣＲ的ＲＴ值（Ｐ＜００５），并使血浆皮质酮水平明显上升（均Ｐ＜００５）。结论：扶正三方能提高哮喘大鼠肺组织的ＧＣＲ的ＲＴ值，并提高其血浆皮质酮水平

Effects of Kidney Nourishing and Spleen Invigorating Recipes on Glucocorticoid Receptors of Pulmonary Tissue and Plasma Corticosterone in Asthmatic Rats

Objective: To observe the effects of Guiqi San (GQS, a Chinese herbal preparation with effect of Kidney Nourishing and Spleen Invigorating), Bushen Dingchuan Tang (BSDCT, with effects of Kidney Nourishing) and Liujunzi Tang (LJZT, with effect of Spleen Invigorating) on glucocorticoid receptor (GCR) and plasma corticosterone (PCC) in asthmatic rats. Methods: The asthmatic model of rats made by intraperitoneal injection of ovalbumin two weeks before, and the asthma consecutively challenged daily with spray inhalation of 1% ovalbumin for 7 days. The asthmatic rat treated with above mentioned three recipes (per os) and Beclomethasone dipropionate (BDP) were taken as treated groups and the asthmatic rat as control group. GCR density of the pulmonary tissue and PCC were determined by radioligand binding assay and competitive protein radio binding assay. Results: The RT value of GCR reduced gradually and PCC lowered also after asthma being developed. On day 7th, the three recipes could markedly up regulate the RT of GCR and PCC. There was significant difference statistically as compared the pulmonary tissue GCR density and PCC of GQS (P<0 01, P<0 05), BSDCT (P<0 05, P<0 05) and LJZT (P<0 05, P<0 05) groups with those of control (asthmatic group) on the 7th day. Conclusion: GQS, BSDCT and LJZT played an up regulate role of GCR density and improvement of adrenocortical function in asthmatic rats in the management of asthma attacks.