METHODS Use light microscopical observation and crystal violet colorimetric method to study morphological and bioactivity change of HVEC and EVC 304 after incubated with PAF, SY, SY+PAF, Ginkolide,and Ginkolide+PAF.

• 方法 将培养的人脐静脉血管内皮细胞 (HVEC)和EVC 30 4细胞系分别分为PAF、SY、SY +PAF、银杏内酯(ginkolide)和 ginkolide +PAF 5组 ,以光镜和结晶紫比色法观察细胞形态和生物活性变化。