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Fabrication of Biologically Derived Injectable Materials for Myocardial Tissue Engineering
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来自细胞外基质的组织工程心肌贴片提供区域机械功能.

Paul V Kochupura1, Evren U Azeloglu, Damon J Kelly

  • 1Department of Surgery, Stony Brook University, Stony Brook, New York, USA.

Circulation
|September 15, 2005
PubMed
概括
此摘要是机器生成的。

细胞外矩阵 (ECM) 心肌贴片改善了区域性心脏功能,并显示了心肌细胞再生,与达克隆贴片不同. 这种组织工程支架为心肌修复提供了卓越的机械效益.

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科学领域:

  • 生物材料科学 生物材料科学
  • 心血管研究研究心血管研究
  • 组织工程是组织工程.

背景情况:

  • 细胞外基质 (ECM) 作为组织工程支架,促进心肌细胞在心肌植入后再生.
  • 达克龙是一种用于手术修复中的心肌贴片的常规材料.
  • 来自ECM的补丁可能比达克龙具有机械优势.

研究的目的:

  • 在狗模型中,比较ECM衍生的心肌贴片与Dacron贴片的机械和功能益处.
  • 评估ECM贴片在心脏组织修复中的再生潜力.

主要方法:

  • 用ECM或Dacron补丁修复的右心室缺陷的狗模型.
  • 在8周评估全球和区域的缩和腹缩功能.
  • 组织学评估,包括免疫组织化学,以确定心肌细胞透.

主要成果:

  • 在ECM和达克伦组之间,总体缩和腹缩功能是可比的.
  • 与Dacron.com相比,ECM贴片显示区域缩功能 (缩区域收缩) 显著改善.
  • 在ECM贴片中,区域性透析功能 (回收率) 和心肌细胞的存在增强,而达克隆植入物中没有这种情况.

结论:

  • 来自ECM的心肌贴片在植入后8周提供区域性机械效益,归因于心肌细胞重新填充.
  • 这些发现凸显了ECM贴片在心肌修复方面比传统的Dacron贴片更高的疗效.