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相关概念视频

Embryonic Stem Cells00:57

Embryonic Stem Cells

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Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
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Development of the reproductive organs in an embryo starts from a bipotential state. This means the early embryo can develop either male or female reproductive organs. The formation of these organs begins with the growth of gonadal ridges that arise from the intermediate mesoderm during the fifth week of development.
Near the gonadal ridges, two duct systems are present: the mesonephric ducts (Wolffian ducts) and paramesonephric ducts (Müllerian ducts). These ducts form the basis for the...
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Ethics and Bioethics01:22

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Ethics is a philosophical study of moral actions. Ethics attempts to determine what is valuable for individuals and society. It examines the rational justification of moral judgments and analyzes what is morally just, fair, and right. Bioethics is a sub-discipline of applied ethics that analyzes the philosophical, social, and legal issues in life sciences and medicine. Ethical theories serve as a foundation for decision-making and represent the viewpoints from which people seek direction. They...
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相关实验视频

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人类胚胎学与胚胎模型的伦理框架

Nicolas C Rivron1, Alfonso Martinez Arias2, Martin F Pera3

  • 1Institute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna Biocenter (VBC), 1030 Vienna, Austria.

Cell
|August 18, 2023
PubMed
概括

新的人类胚胎模型挑战了法律定义. 这项研究提出了更新的法律定义和道德指导方针,用于负责任地使用这些干细胞衍生胚胎模型.

关键词:
类动物一个定义一个胚胎胚胎模型胚胎学伦理学胃类动物人类在法律上

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科学领域:

  • 生物伦理学
  • 发育生物学
  • 法律研究

背景情况:

  • 全球对人类胚胎及其保护的法律定义有很大差异.
  • 从多能干细胞获得的早期人类胚胎体外模型已经出现,挑战现有的法律框架.
  • 这些胚胎模型的创建需要重新评估它们的法律地位和道德考虑.

研究的目的:

  • 提出对人类胚胎的精细法律定义.
  • 建议"临床人类胚胎模型"在何时可以获得法律保护.
  • 概述人类胚胎模型的合理和有益使用的伦理原则.

主要方法:

  • 审查和分析目前对人类胚胎的法律定义.
  • 根据已确立的生物伦理原则制定伦理框架.
  • 对自然胚胎的法律保护与体外模型的比较分析.

主要成果:

  • 确定目前对人类胚胎的法律定义的模两可.
  • 关于授予胚胎模型法律保护的具体标准或"转折点"的建议.
  • 制定以伦理和社会利益为导向的胚胎模型应用路线图.

结论:

  • 现有的法律定义不足以解决人类胚胎模型带来的复杂性.
  • 监管胚胎模型研究需要一个细微的方法,包括道德考虑和"转折点".
  • 制定明确的指导方针将促进利用人类胚胎模型进行负责任的研究.