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相关概念视频

Aging01:26

Aging

59
Aging is a complex biological phenomenon influenced by various processes that affect cellular and systemic functions. Several prominent theories attempt to explain its mechanisms, highlighting cellular limitations, oxidative damage, and hormonal changes as central factors in aging.
Cellular Clock Theory
The cellular clock theory posits that the human lifespan is closely tied to the finite capacity of cells to divide, a phenomenon governed by telomeres, which are protective caps at the ends of...
59
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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相关实验视频

Updated: Jul 12, 2025

Comprehensive Autopsy Program for Individuals with Multiple Sclerosis
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多发性硬化症中的生物衰老.

Yinan Zhang1, Jeffrey Atkinson1, Christin E Burd2

  • 1Department of Neurology, The Ohio State University Wexner Medical Center, Columbus, OH, USA.

Multiple sclerosis (Houndmills, Basingstoke, England)
|October 25, 2023
PubMed
概括
此摘要是机器生成的。

衰老加剧了多发性硬化症 (MS) 的进展,特别是在老年人中. 了解生物衰老如何与MS途径相互作用,对于开发针对神经衰退的新疗法至关重要.

关键词:
动物模型动物模型生物标志物 生物标志物免疫学 免疫学 免疫学多发性硬化症多发性硬化症结果测量结果的测量.这是一个渐进的渐进式.

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科学领域:

  • 神经科学是一个神经科学.
  • 免疫学 免疫学 免疫学
  • 老年学是指老年学的学科.

背景情况:

  • 多发性硬化症 (MS) 主要影响老年人,患病率越来越高.
  • 渐进性多发性硬化症的形式具有挑战性,难以用当前的疾病修饰疗法 (DMT) 治疗.
  • 与多发性硬化病原发生相互作用的生物衰老机制尚未完全理解.

研究的目的:

  • 审查衰老生物学对多发性硬化症 (MS) 病原发生的影响.
  • 探索老龄化如何影响MS中残疾累积.
  • 为了确定进展性MS的潜在治疗点.

主要方法:

  • 审查当前关于衰老生物学和MS的文献.
  • 在老年动物中对MS的临床前模型 (实验性自身免疫脑膜炎 - EAE) 的分析.
  • 对患有多发性硬化症的人群中与年龄有关的生物标志物的检查.

主要成果:

  • 在EAE模型中,中年动物表现出更严重和更长时间的疾病与神经炎症.
  • 生物标志物表明,与对照人群相比,MS患者的生物衰老加速.
  • 将生物年龄与时间年龄区分开来,可能有助于更好地理解老化在多发性硬化症中的作用.

结论:

  • 衰老显著影响多发性硬化症的发病和疾病严重程度.
  • 针对衰老途径的新型生物标志物和老年疗法剂对渐进性多发性硬化症有希望.
  • 需要进一步的研究来开发与年龄相关的MS神经衰退的干预措施.