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相关概念视频

Functions of Thyroid Hormones01:18

Functions of Thyroid Hormones

2.8K
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...
2.8K
Synthesis and Regulation of Thyroid Hormones01:20

Synthesis and Regulation of Thyroid Hormones

4.7K
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...
4.7K

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相关实验视频

Updated: Jul 12, 2025

Author Spotlight: Accurately Assessing Thyroid Hormone-Driven Motor Alterations in Mouse
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一种多功能,行为方法来研究甲状腺激素对小脑功能的影响.

Ayane Ninomiya1, Izuki Amano1, Noriyuki Koibuchi2

  • 1Department of Integrative Physiology, Gunma University Graduate School of Medicine.

Journal of visualized experiments : JoVE
|October 23, 2023
PubMed
概括

甲状腺激素对大脑发育至关重要. 一个新的梯子束测试有效地测量小脑甲状腺激素缺乏的小鼠的运动缺陷,优于传统方法.

科学领域:

  • 神经科学是一个神经科学.
  • 内分泌学 在内分泌学.
  • 发展生物学 发展生物学

背景情况:

  • 甲状腺激素 (TH) 对于中枢神经系统的发育至关重要,特别是小脑.
  • 遗传性甲状腺功能低下会导致神经问题,包括运动缺陷.
  • 在小脑TH缺乏的小鼠模型中评估微妙的运动障碍,在像旋转杆这样的常规测试中具有挑战性.

研究的目的:

  • 开发一种新的行为方法,梯子束测试,用于评估动物模型中轻度动的运动功能.
  • 评估梯子光束测试在检测小脑Purkinje细胞特异性TH缺陷的小鼠中运动缺陷和学习障碍的有效性.

主要方法:

  • 使用具有主导负TH受体的转基因小鼠,特别是在小脑Purkinje细胞中.
  • 开发并实施了一种具有可调节难度的多功能"梯子梁测试".
  • 将梯子束测试性能与常规旋转杆测试进行比较.

主要成果:

  • 梯子光束测试检测出TH缺乏的小鼠显著的运动性能损害,超过了旋转杆测试的灵敏度.
  • 使用梯子光束测试确定了运动学习的中断,而使用旋转杆测试没有观察到这一发现.

结论:

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  • 梯子束测试是一种多功能和灵敏的工具,用于评估动物模型中的运动功能和学习,这些动物模型具有微妙的性表型.
  • 这种新的行为方法可以应用于各种小脑功能障碍模型,有助于理解TH在运动控制中的作用.