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Related Concept Videos

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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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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.
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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

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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.
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Hormones and Bone Tissue01:17

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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.
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Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the...
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Goal-directed osteoporosis treatment: ASBMR/BHOF task force position statement 2024.

Felicia Cosman1, E Michael Lewiecki2, Richard Eastell3

  • 1Department of Medicine, Columbia University College of Physicians and Surgeons, New York, NY 10032, United States.

Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research
|July 29, 2024
PubMed
Summary
This summary is machine-generated.

Effective osteoporosis management focuses on preventing fractures through a goal-directed approach. Tailoring treatment based on individual fracture history and bone density ensures optimal patient outcomes.

Keywords:
DXA, analysis/quantitation of boneanabolics, therapeuticsantiresorptives, therapeuticsosteoporosis, diseases and disorders of/related to bonepractice/policy-related issues

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Area of Science:

  • Endocrinology
  • Geriatrics
  • Rheumatology

Background:

  • Osteoporosis management aims to prevent fractures.
  • A goal-directed approach is crucial for selecting appropriate long-term treatments.
  • Individualized treatment plans are necessary for effective fracture risk reduction.

Purpose of the Study:

  • To provide clinical recommendations for goal-directed osteoporosis treatment.
  • To outline strategies for achieving individualized treatment targets.
  • To summarize evidence for optimizing osteoporosis management.

Main Methods:

  • Assessment of clinical fracture history and vertebral fractures.
  • Measurement of bone mineral density (BMD) at key sites.
  • Consideration of major clinical risk factors and patient profiles.

Main Results:

  • Treatment selection should prioritize rapid fracture risk reduction in high-risk patients.
  • Initial therapy choice depends on fracture history, BMD, and treatment goals.
  • Osteoanabolic and antiresorptive therapies offer differential benefits.

Conclusions:

  • Goal-directed osteoporosis treatment requires personalized risk assessment.
  • Tailoring therapy based on fracture risk and BMD targets improves outcomes.
  • This approach moves beyond a one-size-fits-all bisphosphonate strategy.