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相关概念视频

Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

3.0K
Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
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Bone Remodeling01:40

Bone Remodeling

38.4K
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
38.4K
Hormones and Bone Tissue01:17

Hormones and Bone Tissue

2.7K
The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
2.7K
Bone Disorders01:29

Bone Disorders

3.6K
Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
3.6K
Bone Cells and Tissue01:30

Bone Cells and Tissue

4.7K
Bones contain a relatively small number of cells entrenched in a matrix of organic and inorganic components. Although bone cells compose only a small amount of the bone volume, they are crucial to its function. Four types of cells are found within the bone tissue— osteoblasts, osteocytes, osteogenic cells, and osteoclasts.
Osteoblasts and Osteocytes
The osteoblast is the bone cell responsible for forming new bone tissue. It is found in the growing portions of bone, including the...
4.7K
Skeleton and Calcium Homeostasis01:21

Skeleton and Calcium Homeostasis

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Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
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相关实验视频

Updated: Jul 16, 2025

Isolation, Purification, and Differentiation of Osteoclast Precursors from Rat Bone Marrow
11:11

Isolation, Purification, and Differentiation of Osteoclast Precursors from Rat Bone Marrow

Published on: May 19, 2019

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Echinococcus granulosus通过增加骨质细胞分化来促进骨质再吸收.

Haohao Sun1, Sibo Wang2, Wenbo Tan1

  • 1Medical College of Shihezi University, Shihezi, Xinjiang 832000, China.

Acta tropica
|September 18, 2023
PubMed
概括

骨性囊性赤球菌 (CE) 是一种罕见的寄生性骨病,导致严重的骨损伤. 这项研究揭示了 Echinococcus granulosus 刺激骨质细胞形成,解释了骨损伤,并提供了新的治疗途径.

关键词:
骨水化物疾病模型的模型.骨的再吸收 骨的再吸收骨性囊性赤道球菌病.骨质细胞分化差异化原始人选择了cesces.

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A Simple Pit Assay Protocol to Visualize and Quantify Osteoclastic Resorption In Vitro
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A Simple Pit Assay Protocol to Visualize and Quantify Osteoclastic Resorption In Vitro

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Osteoclast Derivation from Mouse Bone Marrow
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Osteoclast Derivation from Mouse Bone Marrow

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相关实验视频

Last Updated: Jul 16, 2025

Isolation, Purification, and Differentiation of Osteoclast Precursors from Rat Bone Marrow
11:11

Isolation, Purification, and Differentiation of Osteoclast Precursors from Rat Bone Marrow

Published on: May 19, 2019

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A Simple Pit Assay Protocol to Visualize and Quantify Osteoclastic Resorption In Vitro
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A Simple Pit Assay Protocol to Visualize and Quantify Osteoclastic Resorption In Vitro

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Osteoclast Derivation from Mouse Bone Marrow
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Osteoclast Derivation from Mouse Bone Marrow

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科学领域:

  • 寄生虫学的寄生虫学
  • 骨生物学 骨生物学 骨生物学
  • 免疫学 免疫学 免疫学

背景情况:

  • 骨性囊性赤球菌 (CE) 是一种罕见但严重的寄生性骨病,由Echinococcus granulosus引起.
  • 它导致显著的发病率,残疾率和死亡率,但仍未得到充分研究,特别是在骨破坏机制方面.
  • 目前的治疗方法通常是无效的,复发和残疾率很高.

研究的目的:

  • 调查埃奇诺科克细粒菌在骨质CE中引起骨破坏的机制.
  • 为基础研究和骨性CE的创新临床治疗提供理论基础.

主要方法:

  • 建立了骨质细胞原生细胞和 Echinococcus granulosus protoscoleces (PSCs) 的共同培养系统.
  • 开发了脊柱和股骨CE的体内疾病模型.
  • 验证了E. granulosus对骨质细胞分化和活性的作用,在体外和体内.

主要成果:

  • 证实了Echinococcus granulosus protoscoleces直接刺激骨质细胞的形成和分化.
  • 在两种实验模型中都证明了E. granulosus对骨质细胞活动的刺激作用.
  • 阐明了E. granulosus在介导骨质CE的骨质侵蚀特征中的作用.

结论:

  • Echinococcus granulosus直接促进骨质细胞形成,解释了在骨质CE中观察到的骨损坏.
  • 这项研究填补了骨性CE病理生理学的关键知识缺口.
  • 这些发现为开发更有效的治疗策略提供了潜在的目标,以对抗这种被忽视的疾病.