Human Umbilical Vein Endothelial Cells (HUVEC)-Perfusion
试验速览
- 阶段
- 不适用
- 入组人数
- 30
- 试验地点
- 1
- 主要终点
- D-Dimer content of the plasmin degraded thrombus
研究概览
简要总结
Evaluation of fibrin and platelet deposition on a human umbilical endothelial cell surface in perfusion chamber experiments using human whole blood.
Open-label, non interventional study Perfusion chamber experiment will be performed in 30 healthy patients. The Impact of different pH-solutions on thrombus lysis will be evaluated in an in-vitro second step
Outcome:
D-Dimer content of the thrombus reflecting the size of the thrombus.
详细描述
All Subjects will have two perfusion chamber experiment as follow with an estimated maximum of blood loss of 165ml:
Before blood perfusion, perfuse the system including the chambers with human umbilical vein endothelial cell coated glass slides (HUVEC), with sodium chloride (NaCl) (0.9%), to ensure no leaks and to remove all air bubbles.
Blood is drawn from a vein in the arm with a Surflo® Winged Infusion Set, 19G (Terumo Europe, Leuven, Belgium) with a pump (Masterflex® L/S™, Cole-Parmer Instrument Company, Vernon Hills, Illinois, USA). Five mL of blood is discarded before each perfusion.
Three in serial placed flow chambers (with HUVEC) heated to 37°C are used. They are made of a Plexiglas block through which a cylindrical hole of 0.2 cm in diameter is machined. The aorta pieces are perfused at 10 mL/min for 5 minutes, followed by a 30 seconds perfusion with NaCl (0.9%).
The plasmin degraded thrombus D-Dimer content will be further evaluated under different conditions (different pH solutions).
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Age > 18 years
- •Written informed consent
排除标准
- •Use of any medication
- •Current diseases
结局指标
主要结局
D-Dimer content of the plasmin degraded thrombus
时间窗: Assessment will follow after all perfusion chamber experiments (1 week)
次要结局
未报告次要终点
研究者
Ghazaleh Gouya
Dr.
Medical University of Vienna