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相关概念视频

Synthesis and Regulation of Thyroid Hormones01:20

Synthesis and Regulation of Thyroid Hormones

4.4K
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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The Thyroid Gland01:23

The Thyroid Gland

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The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...
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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...
2.6K
Gastritis-II: Pathophysiology01:17

Gastritis-II: Pathophysiology

296
Gastritis is marked by disruption of the mucosal barrier that usually protects the stomach tissue from digestive juices and manifests in acute and chronic forms.
In acute gastritis, the gastric mucosa becomes swollen and red and undergoes superficial erosion. Superficial ulceration may lead to bleeding.
In chronic gastritis, persistent or repeated insults lead to chronic inflammatory changes and, eventually, thinning or atrophy of the gastric tissue.
Gastritis can stem from various causes, each...
296
The Parathyroid Glands00:59

The Parathyroid Glands

2.0K
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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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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相关实验视频

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An Orthotopic Mouse Model of Anaplastic Thyroid Carcinoma
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甲状腺血缩与乳头甲状腺癌相关.

Takuya Seko1, Hiroki Kato2, Tomohiro Ando1

  • 1Department of Radiology, Gifu University, 1-1 Yanagido, Gifu, 501-1194, Japan.

Neuroradiology
|August 13, 2024
PubMed
概括

在乳头甲状腺癌 (PTC) 患者的甲状腺血缩 (THA) 与CT扫描中较弱的对比度增强有关. 这一发现,很可能是由于类原体,不会影响患者的预后.

关键词:
缩性缩症 缩性缩症这就是为什么CTCTCTCTCTCT类似体的原蛋白.这种癌症是乳头癌 (papillary carcinoma).甲状腺腺是什么?甲状腺是什么?

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Author Spotlight: Integrating Ultrasound Imaging with Biochemical Markers for Thyroid Disease Diagnosis
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科学领域:

  • 放射学 放射学是一门学科.
  • 在瘤学瘤学.
  • 病理学 病理学 病理学

背景情况:

  • 甲状腺血缩 (THA) 是一种影响甲状腺副体的疾病.
  • 乳头甲状腺癌 (PTC) 是最常见的甲状腺癌类型.

研究的目的:

  • 调查CT成像特征,病理发现和患有与甲状腺血缩 (THA) 相关的乳头甲状腺癌 (PTC) 患者的预后.

主要方法:

  • 追溯分析了225名患有本体病理学证明的PTC的患者,这些患者接受了手术前CT.
  • 在PTC的ipsilateral侧,THA被定义为甲状腺副甲状腺缩.
  • 在有和没有THA的患者之间,CT发现,生存率和病理特征的比较.

主要成果:

  • 在16%的PTC患者中观察到甲状腺血缩 (THA).
  • 与没有THA的PTC相比,具有THA的PTC显示出明显较低的对比增强CT衰减.
  • 几乎所有含有THA的PTC (97%) 均表现出类似体的原蛋白,其特征是低细胞的,eosinophilic的化原蛋白捆.

结论:

  • 甲状腺血 (THA) 是偶尔在患有乳头甲状腺癌 (PTC) 的患者中发现的一种发现.
  • 微弱的CT扫描对比度增强是THA的PTC患者的独特特征,可能归因于类原蛋白.
  • 在带有和没有THA.的PTC患者之间,没有观察到总体存活率或无病存活率的显著差异.