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相关概念视频

Functions of Thyroid Hormones01:18

Functions of Thyroid Hormones

2.6K
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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Mitochondria01:37

Mitochondria

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Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
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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...
4.4K

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相关实验视频

Updated: Jun 18, 2025

Dissection and Downstream Analysis of Zebra Finch Embryos at Early Stages of Development
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在斑马的发育过程中,甲状腺激素增强了线粒体功能.

Marlene Oefele1, Michaela Hau1,2, Suvi Ruuskanen3

  • 1Evolutionary Physiology Research Group, Max Planck Institute for Biological Intelligence, Eberhard-Gwinner-Strasse, Seewiesen 82319, Germany.

Royal Society open science
|August 1, 2024
PubMed
概括

甲状腺激素 (TH) 可以促进成长中的鸟类的线粒体能量生产,即使在具有挑战性的环境中. 这项研究表明,TH增强了最大的线粒体容量,而不会影响生长.

关键词:
细胞呼吸 细胞呼吸增长的增长增长的增长增长的增长.代谢 代谢 代谢 代谢线粒体中的线粒体.甲状腺激素 甲状腺激素

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相关实验视频

Last Updated: Jun 18, 2025

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科学领域:

  • *生理生态生理生态学
  • * 发育生物学 发育生物学
  • * 线粒体新陈代谢

背景情况:

  • *生物对环境的反应依赖于来自有氧线粒体代谢和三酸 (ATP) 生产的能量.
  • *影响能量代谢和线粒体功能的环境因素尚不清楚,最近的研究表明甲状腺激素 (TH) 有作用.
  • *甲状腺激素 (TH) 是生长和新陈代谢的关键调节剂,能够适应温度和食物可用性等环境条件.

研究的目的:

  • * 调查甲状腺激素 (TH) 和线粒体功能在发育过程中增强之间的因果关系.
  • * 确定TH对生长和线粒体ATP生产在具有挑战性的环境中的影响.
  • * 探索TH介导的线粒体调节对与健身相关的特征的影响.

主要方法:

  • * 口服TH的生理度给斑马 (Taeniopygia guttata) 幼在它们的主要生长阶段.
  • * 在具有挑战性的环境环境中养幼,以模拟现实世界的条件.
  • *测量最大线粒体工作能力作为ATP生产的指标.

主要成果:

  • *TH治疗显著加快了斑马的最大线粒体工作能力.
  • * 线粒体ATP生产能力通过TH治疗得到增强.
  • *没有观察到TH治疗对整体生长的显著影响.

结论:

  • *甲状腺激素 (TH) 在发育过程中在调节线粒体功能的过程中起着至关重要的作用.
  • *提升TH水平可以增加线粒体的能量生产能力,而不会影响生长.
  • * 这项研究提供了第一次描述在半自然主义的背景下,在发育过程中对线粒体的TH调节,这对健康特征有影响.