Portelinha Ana, Cerdeira Ana Sofia, Belo Luís, Braga Jorge, Tejera Eduardo, Pinto Ana, Pinto Fátima, Areias Maria José, Patrício Belmiro, Rebelo Irene
Institute for Molecular and Cell Biology, University of Porto, Portugal.
Thromb Res. 2009 May;124(1):52-6. doi: 10.1016/j.thromres.2008.10.005. Epub 2008 Dec 2.
Evaluation of haemostatic parameters--Plasma tissue plasminogen activator (t-PA), plasminogen activator inhibitor type 1 (PAI-1) and fibrin fragment D-dimer several years after the end of pregnancy to investigate if they are modified in women with history of preeclampsia (PE).
65 healthy women with history of PE and 54 control women with previous normal pregnancy were enrolled in this study. Groups were matched for age, time period since delivery, smoking status and alcohol consumption. t-PA, PAI-1 and fibrin fragment D-dimer antigen levels were quantified using standards commercial ELISA methods. Plasma fibrinogen was measured using automated capillary zone electrophoresis.
Systolic and diastolic blood pressures were higher in women with history of PE. Levels of t-PA, PAI-1 and fibrinogen were similar between groups as well as the t-PA/PAI-1 ratio. A significant increase in D-dimer levels was observed in women with history of PE.
The increase in D-dimer level suggests an abnormal haemostatic potential namely increased intravascular coagulation. This, together with the increased blood pressure, can reflect a tendency for an increased risk of cardiovascular/thrombotic events later in life.
评估妊娠结束数年之后的止血参数——血浆组织型纤溶酶原激活物(t-PA)、1型纤溶酶原激活物抑制剂(PAI-1)和纤维蛋白降解产物D-二聚体,以研究子痫前期(PE)病史女性的这些参数是否发生改变。
本研究纳入了65例有PE病史的健康女性和54例既往妊娠正常的对照女性。两组在年龄、分娩后的时间、吸烟状况和饮酒量方面进行了匹配。采用标准商业化酶联免疫吸附测定(ELISA)方法对t-PA、PAI-1和纤维蛋白降解产物D-二聚体抗原水平进行定量。使用自动毛细管区带电泳法测定血浆纤维蛋白原。
有PE病史的女性收缩压和舒张压更高。两组之间t-PA、PAI-1和纤维蛋白原水平以及t-PA/PAI-1比值相似。观察到有PE病史的女性D-二聚体水平显著升高。
D-二聚体水平升高表明止血潜能异常,即血管内凝血增加。这与血压升高一起,可反映出日后发生心血管/血栓事件风险增加的趋势。