Related Experiment Video
Updated: Dec 31, 2025
14:55
Analysis of Minerals Produced by hFOB 1.19 and Saos-2 Cells Using Transmission Electron Microscopy with Energy Dispersive X-ray Microanalysis
Published on: June 24, 2018
9.6K
Skeletal mineralization: mechanisms and diseases
1Department of Bone and Mineral Research, Research Institute, Osaka Women's and Children's Hospital, Osaka Prefectural Hospital Organization, Izumi, Japan.
Annals of Pediatric Endocrinology & Metabolism
|January 7, 2020
Summary
Skeletal mineralization relies on calcium and phosphate within matrix vesicles. Deficiencies or genetic disorders like X-linked hypophosphatemic rickets and hypophosphatasia impair bone formation, impacting skeletal health.
Area of Science:
- Biochemistry
- Cell Biology
- Genetics
Background:
- Skeletal mineralization begins in matrix vesicles (MVs), essential for bone development.
- Imbalances in calcium, phosphate, or vitamin D disrupt mineralization, leading to rickets and osteomalacia.
- Fibroblast growth factor 23 (FGF23) regulates phosphate metabolism; its dysregulation causes hypophosphatemia.
Purpose of the Study:
- To explore the pathogenesis of skeletal mineralization disorders.
- To highlight the roles of matrix vesicles, FGF23, and alkaline phosphatase in bone health.
- To discuss emerging therapeutic strategies for these conditions.
Main Methods:
- Review of current literature on skeletal mineralization.
- Analysis of genetic and molecular mechanisms underlying rickets, osteomalacia, XLH, and HPP.
- Examination of therapeutic interventions like burosumab and enzyme replacement therapy.
Main Results:
- Vitamin D deficiency and hypophosphatemia are key causes of rickets/osteomalacia.
- Elevated FGF23 signaling contributes to X-linked hypophosphatemic rickets (XLH).
- Hypophosphatasia (HPP) results from inactivating mutations in tissue-nonspecific alkaline phosphatase.
Conclusions:
- Understanding impaired skeletal mineralization is crucial for diagnosing and treating bone disorders.
- Targeting FGF23 and alkaline phosphatase offers promising therapeutic avenues.
- Further research into mineralization pathways will improve patient outcomes.
Related Concept Videos
01:02What is the Skeletal System?
56.4K
Overview
56.4K
01:29Bone Disorders
5.0K
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.
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
Bone deposition is also affected by the levels of sex hormones like estrogen and testosterone that promote osteoblast activity and bone matrix synthesis. When the level of these hormones decreases due to aging, it causes a reduction in bone deposition. As a result, bone resorption by osteoclasts...
5.0K
01:31Essential Minerals for Bone Health
5.8K
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...
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...
5.8K
01:22The Functions of the Skeletal System
5.6K
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...
5.6K
01:18The Bone Matrix
5.3K
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...
5.3K
01:21Skeleton and Calcium Homeostasis
5.6K
Calcium is not only the most abundant mineral in bone but also the most abundant mineral in the human body. Calcium ions are needed for bone mineralization, tooth health, heart rate regulation and strength of contraction, blood coagulation, the contraction of smooth and skeletal muscle cells, and the regulation of nerve impulse conduction. The average calcium level in the blood is about 10 mg/dL. When the body cannot maintain this level, a person will experience hypo or hypercalcemia.
5.6K