中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (47): 7064-7069.doi: 10.3969/j.issn.2095-4344.2016.47.010

• 材料生物相容性 material biocompatibility • 上一篇    下一篇

聚四氟乙烯人工血管对血小板聚集的影响及细胞相容性

姜正明,陈  魁,胡彩娜
  

  1. 郑州大学第一附属医院心血管内科,河南省郑州市  450000
  • 收稿日期:2016-08-22 出版日期:2016-11-18 发布日期:2016-11-18
  • 通讯作者: 胡彩娜,郑州大学第一附属医院心血管内科,河南省郑州市 450000
  • 作者简介:姜正明,男,1978年生,湖北省武汉市人,汉族,硕士,主治医师,主要从事心血管病介入及起搏治疗研究。
  • 基金资助:
    河南省教育厅项目(142300410356)

Effect of polytetrafluoroethylene artificial blood vessels on platelet aggregation and its cytocompatibility

Jiang Zheng-ming, Chen Kui, Hu Cai-na
  

  1. Department of Cardiovasology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
  • Received:2016-08-22 Online:2016-11-18 Published:2016-11-18
  • Contact: Hu Cai-na, Department of Cardiovasology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
  • About author:Jiang Zheng-ming, Master, Attending physician, Department of Cardiovasology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, Henan Province, China
  • Supported by:
    the Project of Henan Province Department of Education, No. 142300410356

摘要:

文章快速阅读:

 

文题释义:
人工血管
:是许多严重狭窄或闭塞性血管的替代品,多是以尼龙、涤纶、聚四氟乙稀等合成材料人工制造的,适用于全身各处的血管转流术,大、中口径人工血管应用于临床已取得满意的效果。
复钙时间:即血浆再钙化时间,是去掉钙的血浆中重新加入钙,使内源性凝血过程重现,标本与正常对照相差大于正常对照的40%,即可认为异常,是测定内源凝血系统缺陷的一种实验检查。用草酸钠抗凝的血浆,使抗凝剂与血浆中的钙离子结合而凝血过程中断,这种血浆加入适当的钙溶液后,血液的凝固过程则继续进行钙化。正常人血浆再钙化时间在3 min以内。

背景:聚四氟乙烯人工血管是临床常用的医用材料,但其具体的基础研究内容尚未完善。
目的:观察聚四氟乙烯人工血管对血小板聚集的作用及细胞相容性。
方法:①对血小板聚集的作用:检测聚四氟乙烯人工血管的凝血时间、复钙时间。将生理盐水、蒸馏水及聚四氟乙烯人工血管分别加入兔红细胞悬液中,计算溶血率;②细胞生物相容性:将SD大鼠原代心肌细胞分别接种于普通玻璃爬片与聚四氟乙烯人工血管片上,3 d后,检测细胞乳酸脱氢酶释放;5 d后,检测细胞增殖。
结果与结论:①聚四氟乙烯人工血管对兔血的动态凝血时间、复钙时间没有影响;聚四氟乙烯人工血管的溶血率为2.3%;②与接种于普通玻璃爬片上的心肌细胞相比,接种于聚四氟乙烯人工血管片上的心肌细胞增殖及乳酸脱氢酶释放无明显变化;③结果表明,聚四氟乙烯人工血管血小板聚集无影响,具有良好的血液相容性与细胞相容性。

关键词: 生物材料, 材料相容性, 聚四氟乙烯, 人工血管, 血小板聚集, 溶血实验, 复钙时间, 大鼠心肌细胞, 乳酸脱氢酶

Abstract:

BACKGROUND: Polytetrafluoroethylene artificial blood vessels have been extensively used in clinic. However, there is still a lack of basic study on it.
OBJECTIVE: To observe the effect of polytetrafluoroethylene artificial blood vessels on platelet aggregation and its cytocompatibility.
METHODS: Effect on platelet aggregation: Dynamic platelet clotting time and plasma recalcification time were detected. Normal saline, distilled water and polytetrafluoroethylene artificial blood vessels were added into the rabbit red cell suspensions, respectively, to count the hemolysis ratio. Cytocompatibility: Primary myocardial cells from Sprague-Dawley rats were respectively seeded onto the common round coverslip and polytetrafluoroethylene artificial blood vessels, and the lactate deshydrogenase release and cell proliferation were detected at 3 and 5 days, respectively.
RESULTS AND CONCLUSION: Polytetrafluoroethylene artificial blood vessels made no effects on the platelet clotting time and plasma recalcification time and 2.3% hemolysis ratio was observed. Compared with the common round coverslip, the myocardial cell proliferation and lactate deshydrogenase release showed no significant changes on the polytetrafluoroethylene artificial blood vessels. These results suggest that the polytetrafluoroethylene artificial blood vessel makes no effect on platelet aggregation and holds good hemocompatibility and cytocompatibility.

Key words: Polytetrafluoroethylene, Blood Vessels Prosthesis, Platelet Aggregation, Tissue Engineering

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