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含有 Askorbic 酸的电纤维对减少心脏组织工程中的氧化应激的影响

Ella-Louise Handley¹, Anthony Callanan¹

¹Institute for Bioengineering, School of Engineering University of Edinburgh Edinburgh UK.

Journal of applied polymer science

|March 5, 2024

概括

这项研究开发了使用聚烯酸乙烯 (PCL) 纤维与酸结合的抗氧化支架,以对抗心脏病发作后的氧化应激. 这些新的支架有效地清除反应性氧物种 (ROS),并显示出对心脏组织工程的希望.

科学领域:

生物材料科学生物材料科学
再生医学是一种再生医学.
心血管研究研究心血管研究

背景情况:

心肌梗塞 (心脏病发作) 造成了恶劣的氧化微环境,阻碍了心脏组织的再生.
缺血-再输液损伤会升高活性氧物种 (ROS),导致心脏病发作区域的进一步细胞损伤.
组织工程移植提供了一种潜在的策略,可以提供治疗性化合物并减轻氧化应激.

研究的目的:

制造和表征电聚烯酸 (PCL) 支架,其中含有抗氧化性质的 Askorbic 酸.
评估这些支架在清理反应性氧物种 (ROS) 的有效性.
评估用于心脏组织工程应用的抗氧化剂载荷支架的机械性能和细胞兼容性.

主要方法:

制造电PCL纤维,含有不同度的 Askorbic 酸.
使用DPPH,超氧化和基基清除试验进行体外抗氧化能力的评估.
机械测试 (强度,扬模量) 和结晶性分析.
使用人类静脉内皮细胞 (HUVEC) 进行体外细胞培养研究,以评估细胞相容性.

主要成果:

装有甲酸的支架证明了对DPPH基,超氧化离子和基的剂量依赖的清理.
加入 Askorbic 酸改善了支架强度和 Young 的模量,并且晶度略有增加.
支架表现出良好的细胞兼容性,支持HUVEC粘附和生存在体外.

结论:

装有甲酸的PCL纤维支架有效中和反应性氧物种 (ROS).
这些抗氧化剂支架具有增强的机械性能和良好的细胞相容性.
开发的支架显示出在心脏组织工程中调节氧化微环境的巨大潜力,用于心肌梗塞治疗.

关键词:

抗氧化剂的脚手架亚斯科布酸是一种亚斯科布酸.心脏组织工程心脏组织工程电力旋转是指电力旋转.心肌梗塞的心脏病发作

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