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相关概念视频

Bone Disorders01:29

Bone Disorders

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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...
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What is the Skeletal System?01:02

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Overview
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Inborn Errors of Metabolism01:20

Inborn Errors of Metabolism

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Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
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Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

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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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Overview of Protein Metabolism01:21

Overview of Protein Metabolism

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Proteins are broken down into amino acids during digestion. Unlike fats and carbohydrates, which are stored for later use, proteins are not. Instead, amino acids are either used to produce ATP through oxidation or contribute to the creation of new proteins for the growth and repair of the body. Any surplus amino acids from the diet are converted into glucose or triglycerides rather than excreted.
Amino acids play various roles in the body once they are absorbed into cells. They are restructured...
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The Functions of the Skeletal System01:22

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The most apparent functions of the skeletal system are support, protection, and movement. However, bone tissue also performs several other critical metabolic functions. For one, the bone matrix acts as a reservoir for a number of minerals important to the functioning of the body, especially calcium and phosphorus. These minerals, present in the bone tissue, can be released back into the bloodstream when required. Calcium ions, for example, are essential for muscle contractions and controlling...
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相关实验视频

Updated: Sep 8, 2025

Murine Hind Limb Long Bone Dissection and Bone Marrow Isolation
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罕见代谢性骨病的临床特征和管理:印度罕见代谢性骨病注册表的审计

Mani Sangar1, Liza Das1,2, Simran Kaur1,3

  • 1Department of Endocrinology, Post-Graduate Institute of Medical Education and Research (PGIMER), 001, Nehru Extension Block, Chandigarh, India.

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概括
此摘要是机器生成的。

这项为期15年的研究分析了218名罕见代谢性骨病患者,确定了29种亚型. 脱矿障碍是最常见的,有风/骨质,突出显著的骨折和形负担.

关键词:
纤维发育不良/麦昆-阿尔布赖特综合征骨质变生不完美罕见的代谢性骨疾病癌症/骨质炎

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相关实验视频

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科学领域:

  • 内分泌学和新陈代谢
  • 遗传学和基因组学
  • 整形医学

背景情况:

  • 罕见的代谢性骨病 (MBD) 存在重大诊断和管理挑战.
  • 这些疾病会影响骨的发育和重塑,影响患者的健康.
  • 现有的注册表通常缺乏关于罕见MBD频谱的全面数据.

研究的目的:

  • 来自专门的注册表的罕见MBD患者的临床和人口统计数据的分析.
  • 鉴定不同罕见的脑膜炎亚型及其临床表现.
  • 研究罕见的骨髓疾病的遗传基础和管理策略.

主要方法:

  • 分析了来自rarembd.in注册表 (2010-2024) 的数据,其中包括218名罕见MBD患者.
  • 患者被分为不同类型的疾病:脱矿,骨基/软骨形成,硬化和未分类的疾病.
  • 基因检测确定了关键基因中的致病变体;记录了各种管理策略.

主要成果:

  • 登记处发现了29种罕见的MBD,其中非矿物质化障碍 (50.4%) 是最常见的.
  • 最常见的亚型是风/ 骨质疏松症 (27. 1%) 和骨质缺陷 (23. 4%).
  • 骨折影响了57.7%的患者,基因分析证实了SOST,ALPL和其他基因的变异.

结论:

  • 在 rarembd.in 登记处提供了有关罕见骨髓炎病的流行病学和临床谱的宝贵见解.
  • 脱矿性障碍,特别是恶心/骨质疏松症,是罕见的骨质疏松症的主要负担.
  • 遗传确认和多样化的治疗方法强调了罕见的骨髓疾病的复杂性.