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相关概念视频

The Parathyroid Glands00:59

The Parathyroid Glands

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The two pairs of parathyroid glands embedded within the posterior surface of the thyroid gland are restricted by a dense capsule around them. These glands comprise two distinct cell populations—parathyroid oxyphil and parathyroid principal cells- pivotal in calcium homeostasis.
Oxyphil cells, whose functions remain elusive, emerge during late puberty, adding a layer of complexity to the parathyroid gland's intricacies. In contrast, principal parathyroid cells undertake a vital role by...
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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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Hormones and Bone Tissue01:17

Hormones and Bone Tissue

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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...
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Synthesis and Functions of Calcitonin00:51

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Calcitonin, a vital polypeptide hormone, regulates calcium levels within body fluids. It is released by the parafollicular cells, also known as C cells, situated in the follicular epithelium of the thyroid gland. Calcitonin responds to fluctuations in blood calcium levels and the influence of gastrointestinal hormones like gastrin and cholecystokinin.
The exact mechanisms by which calcitonin operates in calcium homeostasis remain elusive, but its significance is evident in several vital...
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Synthesis and Regulation of Thyroid Hormones01:20

Synthesis and Regulation of Thyroid Hormones

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Low blood levels of the thyroid hormones — triiodothyronine (T3) and thyroxine (T4) — signal the hypothalamus to release the thyrotropin-releasing hormone (TRH). TRH then reaches the pituitary gland and stimulates the release of thyroid-stimulating hormone(TSH) into the bloodstream.
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
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Functions of Thyroid Hormones01:18

Functions of Thyroid Hormones

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The thyroid hormone (TH) plays a pivotal role in the intricate orchestration of physiological processes, exerting profound effects on development, metabolism, and homeostasis throughout different life stages.
TH is indispensable for the normal development and maturation of the skeletal, muscular, and nervous systems during fetal and childhood growth. It facilitates bone mineral turnover and regulates protein synthesis in developing tissues, contributing significantly to overall growth and...
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相关实验视频

Updated: Jun 26, 2025

Generation of Hypoparathyroid Rats via Carbon-Nanoparticle-Assisted Parathyroidectomy
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甲状腺功能低下症的更新

Cherie Chiang1,2

  • 1Department of Endocrinology, Austin Health, Heidelberg.

Current opinion in endocrinology, diabetes, and obesity
|May 20, 2024
PubMed
概括
此摘要是机器生成的。

慢性小甲状腺功能低下症 (hypoPTH) 与骨折和生活质量低下有关. 新的PTH替代疗法有望改善患者的治疗结果和管理这种复杂的内分泌疾病.

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Establishment of a Simple and Effective Rat Model for Intraoperative Parathyroid Gland Imaging
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科学领域:

  • 内分泌学 在内分泌学.
  • 代谢性骨疾病 代谢性骨疾病

背景情况:

  • 慢性缺甲状腺症 (hypoPTH) 在管理方面存在持续的挑战.
  • 了解其原因,并发症和治疗的进步需要更新的临床指导.

研究的目的:

  • 审查最近的发现及其对成年慢性甲状腺功能障碍症患者护理的影响.
  • 要突出自2022年低甲状腺症指南以来的新进展.

主要方法:

  • 对近期有关甲状腺功能障碍症的文献的综述.
  • 对回顾性队列研究和随机对照试验 (RCT) 的分析.

主要成果:

  • 手术后缺甲状腺症很常见;与免疫相关的hypoPTH正在出现.
  • 低PTH患者的骨折风险较低,但高热症增加了结石风险.
  • PTH替代改善了生活质量,骨循环标志物和脏分泌.

结论:

  • 低PTH是一种慢性疾病,具有显著的发病率和生活质量受损.
  • 有效的管理需要对治疗目标和后续行动的认识.
  • 新的长效PTH替代策略为难以治疗的患者提供了潜在的替代方案.