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Related Concept Videos

Bone Disorders01:29

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 Remodeling01:40

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 Remodeling01:31

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?01:02

What is the Skeletal System?

Overview
Essential Minerals for Bone Health01:31

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...
Hormones and Bone Tissue01:17

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...

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Related Experiment Videos

[Falls and osteoporoses].

Katharina Pils1

  • 1LBI für Angewandte Gerontologie, SMZ-Sophienspital, Apollogasse 19, Vienna, Austria. katharina.pils@wienkav.at

Therapeutische Umschau. Revue Therapeutique
|August 5, 2008
PubMed
Summary
This summary is machine-generated.

Falls are a significant risk for older adults, potentially leading to serious health issues and increased care needs. Fall prevention programs, particularly those involving exercise and environmental changes, are proven effective.

Related Experiment Videos

Area of Science:

  • Geriatrics
  • Public Health
  • Preventive Medicine

Context:

  • Falls are a prevalent issue across all age groups, with increased significance in the elderly.
  • Falls in older adults can result in disability, handicap, and a greater need for social, financial, and long-term care services.
  • Geriatric syndromes, including osteoporosis, gait disturbances, and falls, are not consistently addressed in community health settings.

Purpose:

  • To highlight the under-recognition of falls and related geriatric syndromes in community health services.
  • To emphasize the need for increased awareness among healthcare professionals, particularly general practitioners, regarding fall risks and prevention.
  • To underscore the importance of addressing barriers such as lack of awareness, time, funding, and fear of institutionalization.

Summary:

  • Cochrane data analysis confirms the efficacy of fall prevention strategies.
  • Key interventions identified include structured exercise programs and environmental modifications to reduce fall hazards.
  • Addressing multifactorial causes of falls requires a coordinated approach involving healthcare providers and community support.

Impact:

  • Raising awareness among medical professionals can improve early identification and management of fall risks.
  • Implementing evidence-based fall prevention programs can reduce fall-related injuries, hospitalizations, and long-term care admissions.
  • Effective fall prevention contributes to maintaining independence and improving the quality of life for older adults.