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Related Concept Videos

Bone Disorders01:29

Bone Disorders

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Aging and its effect on bone remodeling is the most common cause of bone disorders. In young and healthy people, bone deposition and resorption happen at an equal rate to maintain optimal bone health.
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The Functions of the Skeletal System01:22

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The most apparent functions of the skeletal system are support, protection, and movement. However, bone tissue also performs several other critical metabolic functions. For one, the bone matrix acts as a reservoir for a number of minerals important to the functioning of the body, especially calcium and phosphorus. These minerals, present in the bone tissue, can be released back into the bloodstream when required. Calcium ions, for example, are essential for muscle contractions and controlling...
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Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
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The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
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The Bone Matrix01:18

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Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in...
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Updated: Sep 17, 2025

Improved Methodology for Studying Postnatal Osteogenesis via Intramembranous Ossification in a Murine Bone Marrow Injury Model
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Iron and Bone Pathophysiology.

Martina Rauner1

  • 1Department of Medicine III & Center for Healthy Aging, Technische Universität Dresden, Dresden, Germany. Martina.Rauner@ukdd.de.

Advances in Experimental Medicine and Biology
|July 2, 2025
PubMed
Summary
This summary is machine-generated.

Both iron deficiency and iron overload harm bone health, decreasing bone mineral density and increasing fracture risk. Understanding iron

Keywords:
Hemochromatosis proteinsIronOsteoblastOsteoclastOsteoporosis

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Area of Science:

  • Bone biology and mineral metabolism
  • Hematology and endocrinology

Background:

  • Systemic iron imbalance negatively impacts bone health.
  • Both iron deficiency and overload lead to reduced bone mineral density and increased fracture risk.
  • Iron's role in bone homeostasis is complex, affecting both bone cells and systemic regulators.

Purpose of the Study:

  • To summarize current knowledge on how iron regulates bone cell function and homeostasis.
  • To explore novel therapeutic strategies for iron-related bone loss.

Main Methods:

  • Review of clinical and preclinical studies.
  • Analysis of mechanisms underlying iron's effects on osteoblasts and osteoclasts.
  • Discussion of systemic iron homeostasis regulators impacting bone.

Main Results:

  • Iron deficiency impairs osteoblast and osteoclast function due to metabolic deficits.
  • Iron overload inhibits osteoblast differentiation and stimulates osteoclastogenesis via oxidative stress.
  • Systemic iron regulators also influence bone homeostasis.

Conclusions:

  • Iron concentration critically affects bone health, with deficiency and overload posing distinct risks.
  • Targeting iron metabolism presents potential therapeutic avenues for bone disorders.