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相关概念视频

Regulation of Food Intake01:30

Regulation of Food Intake

181
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
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Diencephalon: Hypothalamus and Coordination01:23

Diencephalon: Hypothalamus and Coordination

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The hypothalamus is a small yet highly complex and essential brain region that plays a crucial role in regulating various bodily functions. Anatomically, it is located at the base of the brain, just above the brainstem and below the thalamus, forming part of the limbic system.
The hypothalamus interacts with other brain regions, including the pituitary gland, through a direct physical connection called the hypothalamic-pituitary axis. The hypothalamus receives somatic and visceral inputs and...
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Major Hormones and Their Functions01:27

Major Hormones and Their Functions

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Hormones, the biochemical messengers produced by endocrine glands, are pivotal in regulating bodily functions and maintaining homeostasis. Each hormone's balance is crucial; imbalances can lead to significant physiological disruptions. Major hormones include oxytocin, cortisol, epinephrine, estrogen, testosterone, thyroxine, growth hormone, insulin, and glucagon.
Oxytocin, produced in the hypothalamus and released by the pituitary gland, plays a role in social bonding, childbirth, and...
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Regulation of Hormone Secretion01:19

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Regulation of hormone secretion is a finely tuned orchestration driven by various types of stimuli, encompassing neural, humoral, and hormonal signals. Environmental cues instigate neural stimuli, where action potentials traverse nerve fibers to reach their designated targets. An illustrative scenario is the body's response to stress, wherein the sympathetic nervous system releases epinephrine from the adrenal glands, inducing the well-known 'fight or flight' reaction.
Humoral...
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Hormones of the Pituitary Gland01:27

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The small, pea-sized pituitary gland is located at the base of the brain. It is crucial in regulating various bodily functions, from growth to reproduction. The gland is divided into the anterior lobe and the posterior lobe. The secretory cell clusters in the pars distalis of the anterior pituitary lobe are controlled by hypothalamic regulators and synthesize six primary hormones.
The most abundantly secreted hormone from the anterior lobe is the growth hormone, which controls overall growth by...
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The Pituitary Gland01:17

The Pituitary Gland

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The pituitary is a small endocrine organ in the sphenoid bone under the hypothalamus. Primarily, the pituitary in adults has two distinct anatomical and functional regions— the anterior and posterior lobes. During human fetal development, a third pituitary gland region called the pars intermedia atrophies and disappears. However, some of its cells migrate and exist adjacent to the anterior pituitary in adults.
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Updated: May 29, 2025

Dual Somatic Recordings from Gonadotropin-Releasing Hormone GnRH Neurons Identified by Green Fluorescent Protein GFP in Hypothalamic Slices
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脑下垂体 GHRHH 的情况.

Carlos Dieguez1,2, Miguel López3,4, Felipe Casanueva4,5,6

  • 1Department of Physiology, CiMUS, University of Santiago de Compostela-Instituto de Investigación Sanitaria de Santiago de Compostela, Santiago de Compostela, 15782,, Spain. carlos.dieguez@usc.es.

Reviews in endocrine & metabolic disorders
|February 6, 2025
PubMed
概括
此摘要是机器生成的。

增长激素释放激素 (GHRH) 主要调节生长激素 (GH) 的分泌. 新兴证据表明,GHRH也在睡眠-清醒周期和能量平衡中发挥作用,表明更广泛的生理功能.

关键词:
格林林 (Ghrelin) 是一种激素.生长激素生长激素的作用增长激素释放激素的激素勒普丁是一种激素.神经酸Y 神经酸Y矿物质和矿物质 (Orexin和Orexin) 是一种物质.索马托斯塔丁是一种体质的药物.

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Hypothalamic Kisspeptin Neurons as a Target for Whole-Cell Patch-Clamp Recordings
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Author Spotlight: Hypothalamic Neural Mechanism Insights
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相关实验视频

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科学领域:

  • 神经内分泌学神经内分泌学
  • 分子生物学分子生物学
  • 身体生理学 身体生理学

背景情况:

  • 增长激素释放激素 (GHRH) 是一种类激素,主要在下丘脑表达.
  • GHRH通过它的受体 (GHRHR) 在下丘脑核和垂体体内细胞中起作用,调节生长激素 (GH) 分泌.
  • 虽然GHGH是GH的关键调节者,但其更广泛的生理作用越来越被认可.

研究的目的:

  • 审查关于GHGH表达及其在GH调节中的正规作用的当前知识.
  • 探索GHRH与其他神经内分泌因子 (如ghrelin,leptin和orexins) 的复杂相互作用.
  • 讨论GHRH在体调节之外的潜在性效应,包括它对睡眠和能量恒温的参与.

主要方法:

  • 对GHRH现有研究的文献综述.
  • 对GHRH表达模式的RNA测序数据的分析.
  • 综合了关于GHRH与其他信号通路的相互作用的发现.

主要成果:

  • 在人类中,GHRH表达主要是下丘脑表达,在其他物种的中枢神经系统 (CNS) 中分布不同.
  • GHRH是脉动性GH分泌的关键调节者,由索马托斯塔丁和格林等因素调节.
  • 与 ghrelin,leptin 和 NPY 的相互作用突出显示了 GHRH 在复杂的生理过程中的参与.

结论:

  • GHRH的功能超出了GH调节的范围,影响睡眠-清醒周期和能量平衡.
  • 需要进一步的研究,以充分阐明GHRH的类效应.
  • 了解GHRH的多方面的作用对于理解神经内分泌调节至关重要.