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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...

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.

Osteoclasts in Bone Remodeling

Osteoclasts in Bone Remodeling

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 bone...

What is the Skeletal System?

What is the Skeletal System?

Hormones and Bone Tissue

Hormones and Bone Tissue

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...

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...

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Related Experiment Videos

Osteoporosis.

Janice Charles¹, Lisa Valenti, Graeme Miller

¹Family Medicine Research Centre, University of Sydney, New South Wales.

Australian Family Physician

|March 8, 2012

Summary

This summary is machine-generated.

Osteoporosis management occurred at 6 per 1000 general practice visits. This indicates approximately 708,000 national osteoporosis patient-doctor encounters annually.

Related Experiment Videos

Area of Science:

Gerontology
Public Health
Epidemiology

Background:

Osteoporosis is a significant public health concern, particularly in aging populations.
Effective management in primary care settings is crucial for patient outcomes.

Purpose of the Study:

To quantify the incidence of osteoporosis management within general practice encounters.
To estimate the national burden of patient-doctor interactions for osteoporosis.

Main Methods:

Analysis of data from the Bettering Health And Care in the Community (BEACH) program.
Calculation of osteoporosis management rates per 1000 general practice encounters between April 2010 and March 2011.

Main Results:

Osteoporosis was managed in 6 out of every 1000 general practice encounters.
This rate suggests an estimated 708,000 national patient-doctor encounters for osteoporosis annually.

Conclusions:

General practice plays a substantial role in the management of osteoporosis.
The findings highlight the high volume of osteoporosis-related consultations in primary care.