阿魏酸钠拮抗豚鼠哮喘的作用及机制研究  

The expremental research of sodium ferulate on asthmatic guinea pig

作　　者：孙云[1] 徐峰[1] 王德俊[1] 张洪泉[1] 

机构地区：[1]扬州大学医学院药理学教研室,江苏扬州225001

出　　处：《中国药理学通报》2004年第11期1296-1298,共3页Chinese Pharmacological Bulletin

基　　金：江苏省科委自然科学基金资助项目NoBK95 13 5 3 13

摘　　要：目的　探讨阿魏酸钠拮抗卵白蛋白引发豚鼠哮喘的药理学机制。方法　利用卵白蛋白致敏豚鼠后 2wk ,iv阿魏酸钠后吸入 0 2 %的卵白蛋白× 7d。取豚鼠血 ,利用E LASA法测定血液中的粒细胞 巨噬细胞刺激因子 ,白细胞介素 4、5 ,及荧光酶标记法测定阳离子蛋白 ,取支气管肺泡灌洗液计数其中的嗜酸性粒细胞 ,并利用反向高效液相色谱法测定其中的磷酸二酯酶。结果　与对照组相比 ,阿魏酸钠2 5、5 0、10 0mg·kg-1给药后 ,粒细胞 巨噬细胞刺激因子及白细胞介素 - 4、5被抑制 ,随剂量加大抑制效果增强 ;肺泡灌洗液中的嗜酸性粒细胞也随剂量加大数量减少 ,相应的阳离子蛋白减少 ;灌洗液细胞中的磷酸二酯酶活性降低。结论　阿魏酸钠可能通过抑制各种细胞因子、调节嗜酸性粒细胞 ,达到缓解或抑制哮喘的发作。Aim To evaluate the pharmacological effects of sodi um ferulate on asthmatic guinea pigs. Methods Guinea pigs were sensit ized by ovalbumin. Two weeks later,ment of Sodium ferulate were injected every d ay five minutes before inhale, the guinea pigs were killed 7 days later. Granul ocyte-macrophage colony-stimulating factor (GM-CSF), interleukin-4 (IL-4), interleukin-5(IL-5), Eosinophil cationic protein (ECP) in serum were measured by Enzyme-linked immunosorbent assay(ELISA) and fluoroimmunoassay method, the e osinophils (EOSs) were counted and the phosphodiesterase (PDE) in the bronchoalv eolar lavage fluid(BALF) were determined by inverse high-performance liquid chr omatography (HPLC) method. Result After treatment with sodium f erulate for one week at the dose of 25,50,100 mg·kg -1 respectively, th e GM-CSF, IL-4, IL-5 contents were inhibited as compared with the untreated g roup in a dose dependent manner.The count of eosinophil was decreased.The activi ty of PDE of cell in BALF and the level of ECP were decreased.Conclusion Sodium ferulate attenuates the GM-CSF, IL-4, IL-5 in serum and eosi nophils and the activity of PDE and ECP and has protective effect in asthmatic g uinea pig.

关 键 词：阿魏酸钠 豚鼠 哮喘 卵白蛋白 嗜酸性粒细胞 阳离子蛋白 白细胞介素-4 磷酸二酯酶 拮抗 刺激因子 

分 类 号：R562.25[医药卫生—呼吸系统] R392[医药卫生—内科学]