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相关概念视频

Hormones and Bone Tissue01:17

Hormones and Bone Tissue

3.0K
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...
3.0K
Bone Disorders01:29

Bone Disorders

4.0K
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...
4.0K
Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

3.7K
The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...
3.7K
Bone Remodeling01:40

Bone Remodeling

38.6K
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.
38.6K
Essential Minerals for Bone Health01:31

Essential Minerals for Bone Health

4.5K
The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
4.5K
Nature and Nurture01:10

Nature and Nurture

20.8K
Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience,...
20.8K

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相关实验视频

Updated: Sep 19, 2025

Culturing and Measuring Fetal and Newborn Murine Long Bones
06:58

Culturing and Measuring Fetal and Newborn Murine Long Bones

Published on: April 26, 2019

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定期的饮食很重要:骨生长及其他方面.

Rhonda D Kineman1,2, Shoshana Yakar3

  • 1Section of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA.

The Journal of clinical investigation
|June 16, 2025
PubMed
概括

每天三餐可以通过刺激格林和生长激素的释放来增强年轻男性的骨生长. 这种对骨积累的影响取决于 ghrelin 信号系统,以确保最佳的骨健康.

科学领域:

  • 内分泌学 在内分泌学.
  • 骨生物学 骨生物学 骨生物学
  • 营养科学 营养科学

背景情况:

  • 饮食模式对生长的影响尚未完全理解.
  • 研究食物时间和生理反应之间的关系对于理解生长机制至关重要.

研究的目的:

  • 研究如何将食物摄入量限制在离散的餐饮中,会影响年轻男性的生长标志物.
  • 确定格林信号系统在调解饮食模式对骨生长的影响中的作用.

主要方法:

  • 在年轻男性追踪食物摄入模式的观察性研究.
  • 测量吃饭前的格林释放和吃饭后的生长激素脉冲释放.
  • 评估体板扩张作为骨生长的指标.

主要成果:

  • 每天将食物摄入量限制在三餐内,会导致腹前腺激林的释放.
  • 这种模式导致了食后生长激素脉冲,与增加的体板扩张有关.
  • 对骨生长的积极影响取决于完整的 ghrelin 信号系统.

结论:

  • 饮食引起的格林释放可能通过激素信号增强骨积累.
  • 协调荷尔蒙线索与食物摄入量可以优化骨收购和长期骨健康.

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Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

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Using Real-Time Cell Metabolic Flux Analyzer to Monitor Osteoblast Bioenergetics

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Last Updated: Sep 19, 2025

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Culturing and Measuring Fetal and Newborn Murine Long Bones

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Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts
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Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

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Using Real-Time Cell Metabolic Flux Analyzer to Monitor Osteoblast Bioenergetics

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  • 了解这些机制可以为改善整个寿命的骨健康策略提供信息.