目的 观察翘芩清肺剂中药免煎颗粒剂及饮片煎煮剂的体外抑制金黄色葡萄球菌和鲍曼不动杆菌抑菌的效果,以评估其体外抑菌效果的差异,为翘芩清肺剂临床应用提供新的思路及科学依据。方法 使用KB试纸扩散法和改良液体稀释法观察翘芩清肺剂中药免煎颗粒剂和饮片煎煮剂对金黄色葡萄球菌ATCC25923、鲍曼不动杆菌ATCC19606的最小抑菌浓度(MIC)。结果 用KB法检测颗粒冲服剂和饮片煎煮剂金黄色葡萄球菌最低抑菌浓度为1.38 g/mL(P<0.01);鲍曼不动杆菌最低抑菌浓度为2.75 g/mL(P<0.01)。用改良液体稀释法冲服剂金黄色葡萄球菌最低抑菌浓度为10.0 g/mL(P<0.01);鲍曼不动杆菌最低抑菌浓度为5.5 g/mL(P<0.01)。煎煮剂两菌MIC均为5.5 g/mL(P<0.01)。饮片煎煮剂效果较冲服剂好(P<0.01)。结论 翘芩清肺剂中药免煎颗粒冲服剂及饮片煎煮剂均可有效抑制金黄色葡萄球菌和鲍曼不动杆菌的生长,饮片煎煮剂的抑菌效果比免煎颗粒剂较优;对鲍曼不动杆菌的抑菌效果均较金黄色葡萄球菌弱,但无显著性差异性。

Objective To observe the antibacterial effects of Qiaoqinqingfei traditional Chinese medicine decoction and herbal concentrate-granules on Staphylococcus aureus (SA) and Acinetobacter baumannii (AB) in vitro. To assess the different antibacterial effects in vitro between them. It would provide a new idea and scientific basis for the clinical application of Qiaoqinqingfei Formula. Methods The KB test paper diffusion method and modified liquid dilution method were used to observe the minimum inhibitory concentration (MIC) of Qiaoqinqingfei traditional Chinese medicine decoction and herbal concentrate-granules on the Staphylococcus aureus ATCC25923 and Acinetobacter baumannii ATCC19606. Results The MIC of SA and AB in the two form of Qiaoqinqingfei were 1.38 g/mL (P<0.01) and 2.75 g/mL(P<0.01) by the KB test paper diffusion method. The MIC of SA and AB in herbal concentrate-granules of Qiaoqinqingfei were10.0 g/mL (P<0.01) and 5.5 g/mL (P<0.01) by the modified liquid dilution method. And the MIC of SA and AB in decoction both were 5.5 g/mL (P<0.01) in traditional Chinese medicine decoction of Qiaoqinqingfei. Decoction was better than granules (P<0.01). Conclusion Traditional Chinese medicine decoction and herbal concentrate-granules of Qiaoqinqingfei may both effectively inhibited the growth of SA and AB. The bacteriostatic effect of decoction was better than decoction-free granules. The bacteriostatic effect of AB was weaker than Staphylococcus aureus, but there was no significant difference between them.

目的 初步探讨黄芩苷防治支气管哮喘的作用机理。方法 用卵蛋白致敏大鼠制备支气管哮喘动物模型,经黄芩苷干预治疗,运用免疫组化法及Western Blot法检测各组大鼠肺组织匀浆中p38 MAPK磷酸化蛋白表达量。结果 两种检测方法均显示,p38 MAPK磷酸化蛋白水平在模型组中有明显的增加,地塞米松组、黄芩苷高剂量组和低剂量组的p38 MAPK磷酸化蛋白水平均低于模型组(P<0.05)。结论 黄芩苷能有效治疗哮喘的作用与抑制哮喘大鼠p38 MAPK信号通路的表达密切相关。

Objective To explore the mechanism of Baicalin in treatment of bronchia asthma. Methods Animal models of bronchia asthma were made in rats sensitized with egg albumen. After the treatment of Baicalin, immunohistochemistry and western-blot methods were used to test expression quantity of phosphorylated p38 protein of lung tissue in all groups of guinea rats. Results Our data confirmed that the level of phosphorylated p38 protein increased significantly in model group, but it decreased in hexadecadrol group, high dose and low dose Baicalin group (P<0.05). Conclusion The effects of Baicalin in asthma model were associated with inhibition of P38 MAPK signal pathways in a dose-dependent manner.