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Related Concept Videos

Hormones and Bone Tissue01:17

Hormones and Bone Tissue

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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.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
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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.
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...
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Bone Remodeling01:40

Bone Remodeling

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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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Role of Vitamins in Maintaining Bone Health01:25

Role of Vitamins in Maintaining Bone Health

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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...
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Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

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Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
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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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Related Experiment Video

Updated: Apr 24, 2026

Murine Hind Limb Long Bone Dissection and Bone Marrow Isolation
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How common medicines can affect bone health.

Sharon Rees

    Nursing Times
    |September 6, 2014
    PubMed
    Summary

    Weak bones are a global health issue, with lifestyle choices and common medications impacting bone density. This article discusses drugs that harm bone health and outlines fracture prevention strategies.

    Area of Science:

    • Public Health
    • Pharmacology
    • Bone Biology

    Background:

    • Osteoporosis and reduced bone density represent a significant global public health challenge.
    • Lifestyle factors and certain medications are known contributors to diminished bone mineral density.
    • Understanding these risk factors is crucial for effective bone health management.

    Purpose of the Study:

    • To identify common medications that negatively impact bone health.
    • To explain the mechanisms by which these drugs affect bone density.
    • To provide actionable strategies for mitigating fracture risk.

    Main Methods:

    • Literature review of pharmacological agents affecting bone metabolism.
    • Analysis of clinical data linking medication use to bone density changes.

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  • Synthesis of evidence-based recommendations for fracture prevention.

    • Main Results:

    • Several classes of commonly prescribed drugs can compromise bone integrity.
    • Specific therapeutic indications for these drugs are presented alongside their skeletal risks.
    • The article details how these medications can accelerate bone loss.

    Conclusions:

    • Awareness of drug-induced bone loss is essential for healthcare providers and patients.
    • Proactive management strategies can significantly reduce the risk of fractures in vulnerable populations.
    • Integrating bone health considerations into medication management is paramount.