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小檗胺对人中性粒细胞PAF生成和PAF诱导的兔血小板聚集的抑制作用

包丽华, 罗大力, 杨宝峰, 何树桩, 李文汉   

  1. 哈尔滨医科大学药理教研室, 哈尔滨 150086
  • 收稿日期:1996-04-11 修回日期:1996-07-19 出版日期:1997-03-15 发布日期:1997-03-15

Effects of Berbamine on PAF Production in Human Neutrophils and on Platelet Aggregation

Li-Hua Bao, Da-Li Luo, Bao-Feng Yang, Shu-Zhuang He, Wen-Han Li   

  1. Department of Pharmacology; Harbin Medical University; Harbin 150086
  • Received:1996-04-11 Revised:1996-07-19 Online:1997-03-15 Published:1997-03-15

摘要: 本实验研究了双苄基异喹啉类生物碱小檗胺(Berbamine)对人中性粒细胞血小板激活因子(PAF)的产生及PAF引起的兔血小板聚集的影响, 并与钙通道阻断剂维拉帕米进行比较。结果表明, 小檗胺(50 μmol/L, 100 μmol/L)和维拉帕米(10 μmol/L, 100 μmol/L)预处理的人粒细胞, A-23187攻击后, PAF的产生明显降低。小檗胺和维拉帕米也能抑制PAF(70 pmol/L)引起的血小板聚集, 其抑制作用呈剂量依赖性。本实验结果提示, 小檗胺和维拉帕米对PAF生成及血小板聚集的抑制作用可能与阻断钙离子内流有关。

关键词: 小檗胺, 维拉帕米, 血小板激活因子, 中性粒细胞, 人, 血小板聚集

Abstract: The effects of berbamine, an alkaloid of dibenzylisoquinoline, on PAF produc tion in human neutrophils and on platelet aggregation induced by PAF were studied and compared with those of the calcium antagonist verapamil. Preincubation with berbamine (50 mmol/L, 100 mmol/L) or verapamil (10 mmol/L, 100 mmol/L) was shown to significantly inhibit A 23187 stimulated PAF synthesis. Berbamine and verapamil were found to inhibit platelet aggregation induced by PAF 70 pmol/L in a dose dependent manner. These results suggest that the inhibitory effects of berbamine and verapamil on A-23187 stimulated PAF synthesis in human neutrophils and PAF induced platelet aggregation are possibly brought about by inhibiting cellular calcium influx.

Key words: Berbamine, Verapamil, Platelet activating factor (PAF), Neutrophils, Human, Platelet aggregation

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