阿司匹林、肝素对血小板活化及表达CD40L的影响

被引:9
作者
张菲斐
邵建华
朱兴雷
刘同宝
陈良华
许法运
机构
[1] 山东大学省立医院心内科,山东大学省立医院心内科,山东大学省立医院心内科,山东大学省立医院心内科,山东大学省立医院心内科,山东大学省立医院心内科济南,济南,济南,济南,济南,济南
关键词
血小板活化; CD40L; 阿司匹林; 肝素;
D O I
暂无
中图分类号
R541.4 [冠状动脉(粥样)硬化性心脏病(冠心病)];
学科分类号
1002 ; 100201 ;
摘要
目的 探讨血小板活化与表达CD40L的关系以及阿司匹林、肝素对此过程的影响。方法 体外分离健康人血小板 ,经不同浓度二磷酸腺苷 (ADP)、凝血酶诱导后 ,应用流式细胞术测定血小板活化指标P选择素和炎性标志CD40L表达水平 ,观察二者随诱导时间延长的变化过程 ,并分析阿司匹林、普通肝素、低分子肝素对血小板活化及表达CD40L的影响。结果 ADP、凝血酶均呈浓度依赖方式增加血小板P选择素、CD40L表达 ,二者表达水平随诱导时间延长而同步增减 ,呈显著正相关 (P <0 0 5 )。阿司匹林 (2 5 μg/ml)对ADP(4 μmol/L)和凝血酶 (1U/ml)诱导的血小板活化及CD40L表达无任何影响 (P >0 0 5 ) ;普通肝素 (2 5U/ml)和低分子肝素 (2 5U/ml)单独或与阿司匹林合用 ,均能极显著地抑制凝血酶诱导的血小板活化及CD40L表达 (P <0 0 0 1) ,但对ADP的诱导过程无影响 (P>0 0 5 )。结论 炎性介质CD40L可表达在活化血小板表面 ,在多种诱导剂存在的情况下 ,阿司匹林及肝素能部分抑制血小板的活化及CD40L表达
引用
收藏
页码:56 / 59
页数:4
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