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The Effect of Aging on Tissues01:19

The Effect of Aging on Tissues

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Several body functions deteriorate with age. The external signs of aging are easily identifiable. For example, the skin becomes dry, less elastic, and thins out, forming wrinkles. The skin of the face begins to appear looser due to a decrease in the levels of elastic and collagen fibers in the connective tissue. Additionally, melanin production in the hair follicle decreases with age, resulting in gray hair. Moreover, the senses of sight and hearing decline, so glasses and hearing aids may...
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通过动态生物材料加速衰老:在工程平台上总结老化的组织表型.

Christopher M Madl1

  • 1Department of Materials Science and Engineering, School of Engineering and Applied Sciences, University of Pennsylvania, Philadelphia, PA 19104, USA.

iScience
|May 30, 2023
PubMed
概括

了解人类的衰老至关重要,因为它驱动疾病风险. 新的生物材料平台可以模仿老化的组织微环境,潜在地揭示了减缓或逆转衰老效应的疗法.

科学领域:

  • 生物材料科学 生物材料科学
  • 衰老研究研究 衰老研究
  • 组织工程是组织工程.

背景情况:

  • 老龄化是许多疾病的主要危险因素,但人类的基本机制尚未完全理解.
  • 目前的人类衰老研究经常使用有限的细胞培养模型,这些模型不能准确地复制成熟的组织功能或老化的微环境.
  • 现有的模型缺乏可控的细胞微环境,以捕捉与年龄相关的组织力学和微观结构的变化.

研究的目的:

  • 开发先进的生物材料平台,可以更好地复制老年人体组织中发现的复杂细胞微环境.
  • 研究如何动态,生理相关的机械,结构和生化线索影响细胞衰老.
  • 在实验室模型中加速细胞衰老,使用这些生物材料系统进行机械研究.

主要方法:

  • 使用先进的生物材料平台,旨在提供动态和生理相关的线索.
  • 实施精心控制的细胞微环境,模仿组织力学和微观结构的与年龄相关的变化.
  • 选择性调整微环境参数,研究它们对细胞衰老过程的影响.

主要成果:

  • 生物材料平台成功捕捉了细胞微环境中的复杂变化.
  • 这些系统在模型实验室系统中展示了加速细胞衰老过程的能力.
  • 控制的微环境为研究衰老机制提供了一种明确的方式.
关键词:
生物工程是生物工程.生物材料是一种生物材料.卫生科学 卫生科学

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结论:

  • 生物材料平台通过复制老化的组织微环境,为研究人类衰老提供了一个有希望的方法.
  • 这些系统可以加速细胞衰老,方便识别衰老机制.
  • 调整微环境参数可能会导致新的治疗策略,以减轻衰老的有害影响.