Branchford Brian R, Ng Christopher J, Neeves Keith B, Di Paola Jorge
Dept. of Pediatrics - Hematology/Oncology, University of Colorado School of Medicine, Aurora, CO, USA; University of Colorado Hemophilia and Thrombosis Center, Aurora, CO, USA.
Dept. of Chemical & Biological Engineering, Colorado School of Mines, Golden, CO, USA.
Thromb Res. 2015 Jul;136(1):13-9. doi: 10.1016/j.thromres.2015.05.012. Epub 2015 May 21.
Assessment of platelet function and coagulation under flow conditions can augment traditional static assays used to evaluate patients with suspected hemostatic or thrombotic disorders. Among the available flow-based assays, microfluidic devices require the smallest blood volume and provide multiple output options. These assays are based on the presence of wall shear stress that mimics in vivo interactions between blood components and vessel walls. Microfluidic devices can generate essential information regarding homeostatic regulation of platelet activation and subsequent engagement of the coagulation cascade leading to fibrin deposition and clot formation. Emerging data suggest that microfluidic assays may also reveal consistent patterns of hemostatic or thrombotic pathology, and could aid in assessing and monitoring patient-specific effects of coagulation-modifying therapies.
在流动条件下评估血小板功能和凝血功能,可以补充用于评估疑似止血或血栓形成障碍患者的传统静态检测方法。在现有的基于流动的检测方法中,微流控装置所需血量最少,并提供多种输出选项。这些检测方法基于壁面剪应力的存在,该剪应力模拟了血液成分与血管壁之间的体内相互作用。微流控装置可以生成有关血小板激活的稳态调节以及随后凝血级联反应的参与情况的重要信息,凝血级联反应会导致纤维蛋白沉积和凝块形成。新出现的数据表明,微流控检测方法还可能揭示止血或血栓形成病理的一致模式,并有助于评估和监测凝血调节疗法对特定患者的影响。