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Related Concept Videos

Hormones and Bone Tissue01:17

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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.
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Nature and Nurture01:10

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Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience,...
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Functions of Thyroid Hormones01:18

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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.
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Bone Formation by Endochondral Ossification01:24

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Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...
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Major Hormones and Their Functions01:27

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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.
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Role of Hematopoietic Growth Factors01:28

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Hematopoietic growth factors are molecules that regulate the differentiation rate of hematopoietic stem cells (HSCs). Erythropoietin (EPO), primarily produced by the kidneys, plays a crucial role in erythrocyte production. When oxygen levels in the blood are low, EPO is released into the bloodstream, reaching the bone marrow, where it stimulates HSCs to differentiate and mature into erythrocytes, which are vital for oxygen transport.
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Related Experiment Video

Updated: Jun 9, 2025

Culturing and Measuring Fetal and Newborn Murine Long Bones
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Growth hormone and bone: a basic perspective.

Simona Bolamperti1, Isabella Villa2, Luigi di Filippo3

  • 1Endocrine and Osteometabolic Lab, Institute of Endocrine and Metabolic Sciences, IRCCS San Raffaele Hospital, Via Olgettina 58, Milan, 20132, Italy. bolamperti.simona@hsr.it.

Pituitary
|October 30, 2024
PubMed
Summary
This summary is machine-generated.

Growth hormone (GH) is vital for bone health. Recent research reveals GH directly impacts bone, beyond its previously known liver-mediated effects, improving bone growth and quality.

Keywords:
Bone homeostasisBone qualityExperimental modelsGH deficiencyGH excessGH intracellular signalingGrowth hormone

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Area of Science:

  • Endocrinology and Bone Biology
  • Skeletal Physiology

Background:

  • Growth hormone (GH) is crucial for childhood growth and adult skeletal homeostasis.
  • GH deficiency leads to reduced bone growth and osteopenia; GH excess causes bone fragility.
  • Historically, GH's skeletal effects were attributed solely to liver-produced Insulin-like Growth Factor 1 (IGF1).

Purpose of the Study:

  • To review key research advancements.
  • To elucidate the discovery of local GH activity within bone tissue.

Main Methods:

  • Review of fundamental basic research techniques and findings.
  • Analysis of studies investigating GH's direct skeletal mechanisms.

Main Results:

  • Evidence demonstrates GH exerts direct effects on bone tissue.
  • These local actions extend beyond the liver-IGF1 axis.
  • New understanding of GH's complex role in bone metabolism.

Conclusions:

  • GH possesses intrinsic bone anabolic and homeostatic functions.
  • Direct GH action on bone is a significant finding, revising previous understanding.
  • Further research into local GH signaling pathways is warranted.