Osteoporosis
Mark S Nanes1, Caleb B Kallen2
1Division of Endocrinology, Metabolism, and Lipids, Department of Medicine, VA Medical Center and Emory University School of Medicine, Decatur, GA.
Seminars in Nuclear Medicine
|November 2, 2014
Summary
Effective osteoporosis screening and treatment can reduce fracture risk in high-risk groups. Comprehensive fracture risk assessment, including tools like FRAX, guides therapeutic decisions for better patient outcomes.
Area of Science:
- Endocrinology
- Geriatrics
- Public Health
Background:
- Osteoporotic fractures are a significant cause of morbidity and mortality.
- Effective management strategies are crucial for at-risk populations, including postmenopausal women, men, and individuals with glucocorticoid-induced osteoporosis.
Purpose of the Study:
- To provide an updated overview of clinical osteoporosis management.
- To emphasize the role of comprehensive fracture risk assessment beyond bone densitometry.
- To discuss the application of risk-assessment tools and available pharmacotherapies.
Main Methods:
- Review of current clinical practices in osteoporosis.
- Evaluation of bone densitometry's contribution to fracture risk assessment.
- Analysis of epidemiologically derived risk-assessment tools, such as the World Health Organization Fracture Risk Assessment Tool (FRAX).
Main Results:
- Fracture risk assessment, incorporating multiple factors, is key for patient evaluation.
- Tools like FRAX aid in identifying individuals who would benefit from osteoporosis therapy.
- Pharmacological treatments can significantly reduce fracture incidence.
Conclusions:
- A multifaceted approach to osteoporosis management, integrating risk assessment and targeted therapies, is essential.
- Advances in osteoporosis treatment demonstrate successful translation of research into clinical practice.
- Early identification and intervention can mitigate the substantial burden of osteoporotic fractures.
Related Concept Videos
Bone Disorders
7.9K
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...
7.9K
Bone Remodeling
34.3K
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.
34.3K
Osteoclasts in Bone Remodeling
3.8K
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...
3.8K
Hormones and Bone Tissue
3.4K
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...
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...
3.4K
What is the Skeletal System?
45.5K
Overview
45.5K
Role of Vitamins in Maintaining Bone Health
5.0K
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...
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...
5.0K
