首页> 外文期刊>Artificial Organs >Fabrication of a novel hybrid heart valve leaflet for tissue engineering: an in vitro study.
【24h】

Fabrication of a novel hybrid heart valve leaflet for tissue engineering: an in vitro study.

机译:用于组织工程的新型混合心脏瓣膜小叶的制作:一项体外研究。

获取原文
获取原文并翻译 | 示例
           

摘要

The objective of this study was to fabricate biomatrix/polymer hybrid heart valve leaflet scaffolds using an electrospinning technique and seeded by mesenchymal stem cells. Mesenchymal stem cells were obtained from rats. Porcine aortic heart valve leaflets were decellularized, coated with basic fibroblast growth factor/chitosan/poly-4-hydroxybutyrate using an electrospinning technique, reseeded, and cultured over a time period of 14 days. Controls were reseeded and cultured over an equivalent time period. Specimens were examined biochemically, histologically, and mechanically. Recellularization of the hybrid heart valve leaflet scaffolds was significantly improved compared to controls. Biochemical and mechanical analysis revealed a significant increase of cell mass, 4-hydroxyproline, collagen, and strength in the hybrid heart valve leaflets compared to controls. This is the first attempt in tissue-engineered heart valves to fabricate hybrid heart valve leaflets using mesenchymal stem cells combined with a slow release technique and an electrospinning technique.
机译:这项研究的目的是使用静电纺丝技术并通过间充质干细胞接种来制造生物基质/聚合物混合心脏瓣膜小叶支架。间充质干细胞获自大鼠。猪主动脉心脏瓣膜小叶脱细胞,使用静电纺丝技术用碱性成纤维细胞生长因子/壳聚糖/聚-4-羟基丁酸酯包被,再播种并培养14天。对照在相同的时间段内播种和培养。对标本进行了生化,组织学和机械检查。与对照相比,混合心脏瓣膜小叶支架的再细胞化显着改善。生化和力学分析显示,与对照组相比,杂种心脏瓣膜小叶的细胞质量,4-羟脯氨酸,胶原蛋白和强度显着增加。这是组织工程化心脏瓣膜中首次尝试使用间充质干细胞结合缓释技术和静电纺丝技术制造混合心脏瓣膜小叶。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号