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相关实验视频

线粒体完整性和功能在动脉生成中的功能.

Scott W Ballinger1, Cam Patterson, Cynthia A Knight-Lozano

  • 1Sealy Center for Molecular Cardiology and Division of Cardiology, The University of Texas Medical Branch, Galveston, Tex, USA.

Circulation
|July 31, 2002
PubMed
概括
此摘要是机器生成的。

由反应性氧和物种引起的线粒体DNA损伤是动脉样硬化发展的早期事件. 这种损伤有助于血管细胞功能障碍和疾病进展.

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科学领域:

  • 心血管研究研究心血管研究
  • 线粒体生物学 线粒体生物学
  • 氧化压力是一种氧化压力.

背景情况:

  • 冠状动脉样硬化的疾病是导致死亡的主要原因.
  • 反应性氧和物种 (RS) 有助于血管细胞功能障碍和动脉生成.
  • 线粒体DNA的氧化损伤导致线粒体功能障碍.

研究的目的:

  • 调查线粒体氧化剂生成和DNA损伤在动脉样硬化病变进展中的作用.
  • 在人类和小鼠模型中检查线粒体DNA损伤和动脉样硬化之间的关系.

主要方法:

  • 对人类动脉样本的分析.
  • 对易患动脉样硬化症的阿波利波蛋白E的研究.小鼠.
  • 评估线粒体DNA损伤和动脉样硬化病变的程度.
  • 对缺乏超氧化物脱酶的小鼠的评估.

主要成果:

  • 线粒体DNA损伤与动脉样和老鼠大动脉的动脉样中的动脉样程度相关.
  • 线粒体DNA损伤在年轻的apolipoprotein E(-/-) 小鼠中先发生了动脉动脉生成.
  • 缺少超氧化物脱酶的小鼠显示线粒体DNA损伤增加并加速了动脉生成.

结论:

  • 线粒体DNA损伤,可能来自反应性氧和物种,可能是动脉样硬化病变开始的早期事件.
  • 这种损伤有助于血管功能障碍和动脉样硬化的进展.