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相关概念视频

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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Muscle Recovery and Fatigue01:24

Muscle Recovery and Fatigue

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Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective...
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Disorders of the Skeletal Muscle01:28

Disorders of the Skeletal Muscle

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The clinical conditions affecting the skeletal muscle tissue are broadly categorized as musculoskeletal and neuromuscular disorders.
Musculoskeletal disorders
Musculoskeletal disorders involve injuries and conditions affecting the skeletal muscles and associated connective tissues. These disorders can arise from acute biomechanical stresses or chronic overuse and can occur across different age groups. Common injuries include sprains, fractures, and muscular strains, often resulting from...
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Aging01:26

Aging

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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...
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Cross-bridge Cycle01:26

Cross-bridge Cycle

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As muscle contracts, the overlap between the thin and thick filaments increases, decreasing the length of the sarcomere—the contractile unit of the muscle—using energy in the form of ATP. At the molecular level, this is a cyclic, multistep process that involves binding and hydrolysis of ATP, and movement of actin by myosin.
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Mitochondria01:37

Mitochondria

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Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
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相关实验视频

Updated: Feb 28, 2026

In Situ Immunofluorescent Staining of Autophagy in Muscle Stem Cells
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In Situ Immunofluorescent Staining of Autophagy in Muscle Stem Cells

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肌肉功能的缺陷概念和炎症.

Giada Mariano1, Matteo Candeloro1, Raffaello Pellegrino2

  • 1Department of Innovative Technologies in Medicine & Dentistry, University "G. d'Annunzio", 66100 Chieti, Italy.

Biomedicines
|February 27, 2026
PubMed
概括
此摘要是机器生成的。

骨肌功能缺陷 (SMFD) 提供了对肌肉衰老的统一看法,整合了质量和质量. 这种与慢性炎症 (炎症) 相关的方法可以预测老年人的结果,并有助于早期干预.

关键词:
炎症导致的炎症.这种类型的麻症是sarcopenia.骨肌功能缺陷 骨肌功能缺陷

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相关实验视频

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科学领域:

  • 老年学是一门学科.
  • 肌肉生理学 肌肉生理学
  • 炎症研究 炎症研究

背景情况:

  • 衰老的肌肉功能障碍是复杂的,涉及萨尔科佩尼亚,迪纳佩尼亚,骨髓炎和电力衰竭.
  • 现有的模型无法将肌肉质量和质量完全整合到单一的功能测量中.
  • 炎症是一种慢性与年龄相关的炎症,越来越多地被认为是衰老过程的关键因素.

研究的目的:

  • 引入和验证骨肌功能缺陷 (SMFD) 作为肌肉衰老的统一概念.
  • 探索炎症在关联神经肌肉衰老与功能衰退中的作用.
  • 评估SMFD得分对老年患者结果的预测价值.

主要方法:

  • 使用了InCHIANTI研究队列.
  • 开发和应用SMFD得分,整合肌肉质量和质量.
  • 与各种老年结局相关的SMFD得分,包括残疾,身体表现,住院治疗,跌倒和疾病发病率.

主要成果:

  • SMFD评分有效地将肌肉质量和质量整合到一个单一的功能定义中.
  • SMFD与增加残疾风险,减少体力表现,住院治疗,跌倒和重大疾病有显著的关联.
  • 发炎被确定为一种将神经肌肉衰老与功能缺陷联系起来的中心机制.

结论:

  • 骨肌功能缺陷 (SMFD) 为理解和评估与年龄相关的肌肉恶化提供了一个有价值的,统一的框架.
  • SMFD得分是肌肉衰竭的强有力的指标,也是健康衰老的预测因素.
  • 准炎症途径是缓解肌肉衰老及其相关功能衰退的潜在治疗策略.