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Regulation of Angiogenesis and Blood Supply01:24

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Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl...
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The development of the vascular system in a fetus is a complex and intricate process that begins as early as 15 to 16 days post-conception. This process starts outside the embryo, specifically in the mesoderm of the yolk sac, chorion, and connecting stalk. Approximately two days later, the formation of blood vessels occurs within the embryo itself.
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相关实验视频

Updated: Dec 6, 2025

Bioengineering Human Microvascular Networks in Immunodeficient Mice
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生物工程的人类血管

Laura E Niklason1,2, Jeffrey H Lawson3,4

  • 1Departments of Anesthesiology and Biomedical Engineering, Yale University, New Haven, CT, USA. laura.niklason@yale.edu lawson@humacyte.com.

Science (New York, N.Y.)
|October 9, 2020
PubMed
概括
此摘要是机器生成的。

通过结合组织工程,生理学和生物制造技术的进步, 人工动脉正准备进行血管疾病治疗的革命.

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科学领域:

  • 生物医学工程
  • 血管生物学
  • 复原医学

背景情况:

  • 亚历克西斯·卡雷尔 (Alexis Carrel) 开创的血管解剖术对于治疗血管损伤和疾病至关重要.
  • 动脉移植已经从早期的人造材料演变为现代聚合物织物.
  • 人们对动脉生理学和细胞生物学的理解有了显著的进步.

研究的目的:

  • 突出人体动脉在手术治疗中的进步和潜力.
  • 讨论使人工动脉发展成为可能的跨学科进展.
  • 让人工动脉成为治疗血管疾病的未来支柱.

主要方法:

  • 通过结合组织工程的最新进展.
  • 整合了生理学和细胞生物学方面的知识.
  • 使用生物制造技术的进步.

主要成果:

  • 人工动脉正在临床应用.
  • 跨学科的进步为人工动脉的发展铺平了道路.
  • 这些工程血管有望成为重要的治疗选择.

结论:

  • 人工动脉是血管外科的一个重大进步.
  • 多个科学领域的融合推动了这一创新.
  • 人工动脉预计将成为血管疾病的标准治疗方法.