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ID:36748477
大小:70.68 KB
页数:9页
时间:2019-05-14
《白血病病人血栓前状态分子标志物的变化及临床意义》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、白血病病人血栓前状态分子标志物的变化及临床意义【关键词】白血病;血栓前状态;D-二聚体;膜蛋白质类;vWF;抗凝血酶Ⅲ [摘要]目的观察白血病病人凝血、抗凝及纤溶指标的变化,以探讨凝血系统的变化与白血病并发出血的关系。方法采用酶联免疫吸附法,检测了86例初发白血病病人的血浆D-二聚体(D-D)、血小板α颗粒膜蛋白-140(GMP-140)、血管性血友病因子∶抗原(vWF∶Ag)的含量,发色底物法检测抗凝血酶Ⅲ(AT-Ⅲ)活性,并与45例健康人比较。结果白血病病人血浆D-D、GMP-140、vWF∶Ag含量明显升高,与对照组比较差异有显著性(t=9.208~10.782,P<0.001
2、),且急性非淋巴细胞性白血病(ANLL)病人各指标变化明显高于急性淋巴细胞性白血病(ALL)及慢性白血病病人(t=5.237~31.598,P<0.001),而ANLL病人AT-Ⅲ活性明显低于ALL、慢性白血病病人及对照组(t=9.857~19.963,P<0.001),慢性白血病病人除了vWF∶Ag含量高于对照组外(t=2.534,P<0.05),其余各指标与对照组比较差异无显著性(t=0.301~1.889,P>0.05)。白血病病人血浆GMP-140、vWF∶Ag、D-D、AT-Ⅲ活性水平之间呈明显的相关性(r=-0.759~0.915,P<0.05、0.
3、01)。结论白血病病人存在明显的高凝状态,表现为血小板活性增加及血管内皮细胞损伤,抗凝活性降低及继发纤溶功能亢进。 [关键词]9白血病;血栓前状态;D-二聚体;膜蛋白质类;vWF;抗凝血酶Ⅲ [ABSTRACT]ObjectiveToexploretherelationshipbetweenincidenceofhemorrhageinpatientswithleukemiaandchangesofthemarkersofcoagulation,anticoagulationandfibrinolysis.MethodsPlasmaplateletgranularmembraneprot
4、ein140(GMP-140),vonWillebrandfactorAg(vWF∶Ag),D-dimer(D-D)weredetectedbyEnzymeLinkedImmunosorbentAssay(ELISA),Anti-thrombinⅢ(AT-Ⅲ)activitybychromogenicsubstratemethodin86patients.Theresultswerecomparedwith45healthysubjects.ResultsThelevelsofplasmamembraneproteins,vWF∶Ag,D-Dweresignificantlyelevated
5、inthepatientsanddif-feredsignificantlyfromthecontrol(t=9.208-10.782,P<0.001).ThechangesofmolecularmarkersinpatientswithANLLwereelevatedsignificantlythanthosewithALLandchronicleukemia(t=5.237-31.598,P<0.001).ThelevelsofplasmaAT-ⅢactivityinpatientswithANLLwerelowersignificantlythanthosewithALL,
6、chronicleukemiaandcontrolgroup(t=9.857-19.963,P<0.001).Therewasnosignificantdifferencebetweenpatientswithchronicleukemiaandthecontrols(t=0.301-1.889,P>0.05)exceptthelevelsofvWF∶Ag(t=2.534,P<0.05).Thereweresignificantcorrelationsbetweenthe9molecularmarkersinpatientswithleukemia(r=-0.759-0.9
7、15;P<0.01,0.05).ConclusionThereexistsanobvioushypercoagulablestateinpatientswithleukemia.Theactivationofplatelet,fibrinolyticsystemandtheinjuryofvascularendotheliuminpatientswithleukemiamaybethecausesofb
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