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Related Concept Videos

Essential Minerals for Bone Health01:31

Essential Minerals for Bone Health

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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.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
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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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Overview of Secretory Vesicles01:33

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Secretory vesicles, also known as dense core vesicles (DCVs), are membrane-bound vesicles that transport secretory proteins, such as hormones or neurotransmitters. Regulated secretory vesicles transport proteins from the trans-Golgi network to the exterior of the cell. Proteins present in regulated secretory vesicles are required to be rapidly exocytosed in large amounts upon a specific stimulus.
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Minerals01:26

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Minerals are essential nutrients that the human body needs in small amounts to work properly. They play a vital role in many bodily functions, such as building strong bones and transmitting nerve impulses. Some minerals are needed for hormone production or to maintain a normal heartbeat. Major minerals include calcium, phosphorus, potassium, sulfur, sodium, chlorine, and magnesium, while trace minerals include iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium.
 
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Related Experiment Video

Updated: Sep 7, 2025

Analysis of Minerals Produced by hFOB 1.19 and Saos-2 Cells Using Transmission Electron Microscopy with Energy Dispersive X-ray Microanalysis
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Matrix Vesicle-Mediated Mineralization and Potential Applications.

T Iwayama1, P Bhongsatiern1, M Takedachi1

  • 1Department of Periodontology, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan.

Journal of Dental Research
|June 20, 2022
PubMed
Summary

Matrix vesicles are crucial for bone and tooth mineralization. Recent advances reveal their intracellular formation via mitochondria and lysosomes, opening new avenues for tissue regeneration therapies.

Keywords:
biomineralizationcalcium phosphatesextracellular vesicleslysosomesmitochondriaregeneration

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Area of Science:

  • Biomineralization
  • Cell Biology
  • Tissue Engineering

Background:

  • Matrix vesicles (MVs) are key regulators of biomineralization in hard tissues like bone and teeth.
  • Historically, research on MV formation and function has faced technical challenges, limiting progress.
  • Recent breakthroughs are elucidating the intricate intracellular pathways governing MV biogenesis.

Approach:

  • Reviewing recent advancements in understanding the intracellular biosynthesis of matrix vesicles.
  • Highlighting the roles of mitochondria, lysosomes, mitophagy, and mitochondrial-derived vesicles.
  • Exploring novel secretion pathways, including exocytosis, alongside plasma membrane budding.

Key Points:

  • Mitochondria and lysosomes are central to matrix vesicle formation.
  • Mitophagy, mitochondrial-derived vesicles, and mitochondria-lysosome interactions are implicated in MV intracellular pathways.
  • Exocytosis is proposed as a primary secretion route for matrix vesicles.
  • Advanced nano-level microscopy and cell biology techniques are essential for future research.

Conclusions:

  • A deeper understanding of matrix vesicle biology is crucial for advancing hard tissue formation and homeostasis.
  • Matrix vesicles represent a promising, yet underexplored, avenue for cell-free regenerative therapies in bone and periodontal applications.
  • Further research integrating advanced imaging and cell biology is needed to fully harness MV potential in tissue regeneration.