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Bone Remodeling

Bone Remodeling

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.

Bone Disorders

Bone Disorders

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...

Essential Minerals for Bone Health

Essential Minerals for Bone Health

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...

Role of Vitamins in Maintaining Bone Health

Role of Vitamins in Maintaining Bone Health

The growth and maintenance of bone are regulated by a combination of nutritional factors, including vitamins, such as vitamin A, B12, C, D, and K.
Vitamin A
Vitamin A is involved in the process of bone remodeling. Retinoic acid, the active metabolite of Vitamin A, has nuclear receptors in osteoblasts and osteoclasts, which are involved in bone remodeling.
Vitamin B12
Vitamin B12 acts as a cofactor during the formation of osteoblast-related proteins, such as osteocalcin. Vitamin B12 plays a role...

The Bone Matrix

The Bone Matrix

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...

Skeleton and Calcium Homeostasis

Skeleton and Calcium Homeostasis

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.

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Related Experiment Video

Updated: Mar 25, 2026

Author Spotlight: An Economic and Efficient Method for Quantitative Evaluation of Bone Microarchitecture in a Murine Osteoporosis Model

Author Spotlight: An Economic and Efficient Method for Quantitative Evaluation of Bone Microarchitecture in a Murine Osteoporosis Model

Published on: September 8, 2023

Bone mineral content in women.

S T Lee¹, K Bose

¹Department of Orthopaedic Surgery, National University of Singapore.

Annals of the Academy of Medicine, Singapore

|May 1, 1989

Summary

Osteoporosis, a condition of reduced bone mass, can be prevented, especially in women. Understanding factors influencing bone mineral content is crucial for effective prevention strategies and requires further local population research.

Area of Science:

Bone health and osteoporosis research.
Medical diagnostics and preventative strategies.

Background:

Osteoporosis is defined by decreased bone mass, increasing fracture risk in areas like the vertebrae and proximal femur.
Bone Mineral Content (BMC) assessment is vital for predicting osteoporosis.
Prevention of osteoporosis, particularly in women, is achievable.

Purpose of the Study:

To emphasize the need for a comprehensive understanding of factors influencing bone mineral content.
To advocate for further research into osteoporosis within the local population.
To highlight the importance of preventative measures for osteoporosis.

Main Methods:

Utilizing dual photon absorptiometry for reliable Bone Mineral Content assessment.
Identifying key factors that regulate bone mineral content.

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Last Updated: Mar 25, 2026

Author Spotlight: An Economic and Efficient Method for Quantitative Evaluation of Bone Microarchitecture in a Murine Osteoporosis Model

Author Spotlight: An Economic and Efficient Method for Quantitative Evaluation of Bone Microarchitecture in a Murine Osteoporosis Model

Published on: September 8, 2023

Cantilever Bending of Murine Femoral Necks

Cantilever Bending of Murine Femoral Necks

Published on: January 5, 2022

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

Scanning Skeletal Remains for Bone Mineral Density in Forensic Contexts

Published on: January 29, 2018

Conducting population-specific research.

Main Results:

Dual photon absorptiometry is confirmed as a reliable method for assessing Bone Mineral Content.
A gap in understanding the determinants of bone mineral content is identified.
The necessity for localized research on osteoporosis is established.

Conclusions:

Effective osteoporosis prevention requires a deeper understanding of bone mineral content regulation.
Further research targeting the local population is essential for developing effective prevention strategies.
Osteoporosis is a preventable condition, particularly for women.