组织因子相关血小板微粒对恶性淋巴瘤患者血栓发生的提示作用

本研究通过测定血浆血小板微粒密度及血浆组织因子凝血活性,探讨组织因子相关血小板微粒密度与恶性淋巴瘤患者血栓发生之间的关系,判断其能否成为预测淋巴瘤患者血栓发生的敏感性指标。研究分为3组:A组为正常对照组(50例),均为健康体检者,采血前1周未服用任何药物,均排除高凝状态疾病;B组为淋巴瘤非血栓患者组(50例);C组为淋巴瘤合并血栓患者组(8例)。从3组人员抽取静脉血离心得到血浆,用流式细胞术和发色底物法分别检测血浆中血小板微密度及血浆组织因子凝血活性。结果表明,与A组相比,B组血浆血小板微粒密度和组织因子凝血活性均升高;C组与B组相比,血小板微粒密度和组织因子凝血活性进一步明显升高。结论:血浆组织因子相关血小板微粒密度对淋巴瘤患者血栓发生有提示作用,可以作为临床检测血栓的指标。

Predictive value of tissue factor-associated platelet microparticles in thrombosis of patients with lymphoma

This study was purposed to investigate the relationship between tissue factor associated platelet micropaticles and thrombosis of patients with lymphoma by detecting the density of platelet micropaticles and the tissue factor coagulative activity, and to evaluate the possibility of tissue factor coagulative activity for predication of thrombosis in lymploma patients. This study was divided into 3 groups: A group including 50 healthy persons who did not take any drugs and had no hypercoagulation diseases; B group including 50 cases of lymphoma without thrombosis, and C group including 8 cases of lymplona with thrembosis. The plasma was isolated from venous blood by centrifugation. The density of platelet microparticles was detected by flow cytometry; the tissue factor coagulative activity of plasma was measured by chromogenic substrate. The results indicated that compared with group A, the density of platelet microparticles increased in group B. Compared with group B, group C had significantly higher density of platelet microparticles and tissue factor coagulative activity (P < 0.01). It is concluded that the density of tissue factor associated platelet microparticle has predictive value for lymphoma with thrombosis, which can be used as target of clinical test.