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相关概念视频

Adaptability of Cytoskeletal Filaments01:12

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The cytoskeleton is a complex dynamic structure performing varied functions based on cellular requirements. The adaptability of the individual filaments in the cytoskeleton determines their ability to perform various functions within the cell. It can undergo rapid reorganization during processes like cell division or remain stable for several hours as in the interphase. The adaptability of these filaments depends on stringent regulatory mechanisms. The microfilament and microtubules of the...
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Cellular Adaptation I: Introduction and Atrophy01:23

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Cells can adapt to environmental changes to maintain function and avoid injury, a process called cellular adaptation. Adapted cells exist in a reversible intermediate state with changes in size, number, phenotype, metabolism, or function. These responses help cells meet altered physiological or pathological demands; for example, enlargement of breast and uterine tissues during pregnancy. Early adaptations may enhance function, but persistent stress eventually causes tissue damage.Types of...
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Cellular Adaptation II: Hypertrophy01:26

Cellular Adaptation II: Hypertrophy

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Hypertrophy is the increase in the size of individual cells, resulting in the enlargement of a tissue or organ. Unlike hyperplasia, which involves an increase in cell number, hypertrophy is characterized by an increase in cell volume. This process often occurs in response to higher functional demand or hormonal stimulation, leading to the production of more structural proteins and organelles, thereby enhancing the cells' work capacity.There are two primary types of hypertrophy:...
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相关实验视频

Updated: May 1, 2026

Building Finite Element Models to Investigate Zebrafish Jaw Biomechanics
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轨道水平的机械适应:对形态变化的数值分析.

Ekaterina Smotrova1, Simin Li2, Vadim V Silberschmidt2

  • 1Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University, Loughborough, UK; Laboratory of Mechanics of Biocompatible Materials and Devices, Perm National Research Polytechnic University, Komsomolsky Ave., 29, Perm, 614000, Russia.

Computers in biology and medicine
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PubMed
概括

骨梁通过六种机制使它们的形状和结构适应机械负荷,改善硬度和减少压力. 这项研究详细介绍了这些负载驱动的变化在个别的尾层面.

关键词:
亚巴克斯 (Abaqus) 是一个名为阿巴克斯的动物.骨的适应 骨的适应一个有限的元素.在外界,外界是外界.个别的轨道.椎间板体形态学 椎间板体形态学

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Author Spotlight: Comparing Alveolar and Long Bone Remodeling to Explore OTM Model Potential
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相关实验视频

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科学领域:

  • 生物力学 生物力学
  • 材料科学 材料科学 材料科学
  • 计算生物学 计算生物学

背景情况:

  • 骨头是一种动态的生物材料,它根据机械负荷而适应其结构和机械特性.
  • 椎骨适应通常涉及增强硬性和沿着负载方向对其架构进行重新调整.
  • 虽然组织和器官层面的适应得到了充分的研究,但在个体尾层面的适应过程仍然不太了解.

研究的目的:

  • 描述和分类由负载驱动的形态变化,这些变化发生在单个尾层面.
  • 为了确定这些形态适应在trabeculae背后的主要驱动因素.
  • 为了研究这些适应在椎骨上的机械后果.

主要方法:

  • 实施了基于机制调节的骨适应的数值模型.
  • 一个用户定义的子程序修改了基于机械刺激大小的轨道状物质.
  • 在压缩或剪切负荷下分析了各种形状的梯形的有限元模型.

主要成果:

  • 在压力或剪切负荷下,trabeculae表现出形态演变,包括重定向,分裂,合并,再吸收,稀薄和加厚.
  • 在12个分析的案例中,确定了6种不同的形态进化的机制.
  • 模拟的适应始终降低了平均·米塞斯应力,并提高了对负载的抵抗力.

结论:

  • 在对机械刺激的反应中,状经历了显著的形态变化.
  • 这些适应机制增强了椎骨的机械完整性和承载能力.
  • 了解尾层面的适应,可以了解骨的弹性和机械生物学.