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Related Concept Videos

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 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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Osteoclasts in Bone Remodeling01:31

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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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Menopause01:28

Menopause

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Menopause, a natural biological process marking the end of a woman's fertility, typically occurs between the fifth and sixth decade of life. This phase is characterized by the exhaustion of the ovarian follicle pool, leading to less responsive ovaries despite the high levels of Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH). The consequential decrease in estrogen production results in symptoms like hot flashes, heavy sweating, headaches, hair loss, muscle pains, vaginal...
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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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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.
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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.
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Updates on Osteoporosis in Men.

Dima L Diab1, Nelson B Watts2

  • 1Division of Endocrinology/Metabolism, Department of Internal Medicine, Cincinnati VA Medical Center, University of Cincinnati Bone Health and Osteoporosis, 231 Albert Sabin Way, MSB 7th Floor, Cincinnati, OH 45267, USA.

Endocrinology and Metabolism Clinics of North America
|May 23, 2021
PubMed
Summary
This summary is machine-generated.

Osteoporosis is less common in men, but they face higher mortality from fragility fractures. Fracture risk assessment, including FRAX, is crucial for men, even if they don't meet bone density criteria for osteoporosis.

Keywords:
DiagnosisEvaluationFracturesMenOsteoporosisTreatmentUpdates

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Area of Science:

  • Endocrinology
  • Geriatrics
  • Orthopedics

Background:

  • Osteoporosis affects fewer men than women, but male patients have a higher mortality rate following major fragility fractures.
  • Diagnosis typically relies on bone mineral density (BMD) or fragility fracture presence, particularly of the spine or hip.
  • Many high-risk men may not meet the T-score threshold for osteoporosis diagnosis.

Purpose of the Study:

  • To highlight the importance of comprehensive fracture risk assessment in men.
  • To emphasize the utility of tools like FRAX (Fracture Risk Assessment Tool) for identifying at-risk individuals.
  • To advocate for individualized pharmacologic management for men at high risk of fracture.

Main Methods:

  • Review of current diagnostic criteria for osteoporosis in men.
  • Evaluation of the role of bone mineral density (BMD) testing.
  • Assessment of the utility of fracture risk assessment tools, such as FRAX.
  • Discussion of therapeutic strategies for managing osteoporosis in men.

Main Results:

  • Major fragility fractures carry a higher mortality risk in men compared to women.
  • Bone mineral density (BMD) T-score criteria alone may underestimate fracture risk in many men.
  • Fracture risk assessment tools, like FRAX, can identify men who require intervention despite not meeting BMD criteria.

Conclusions:

  • A proactive approach combining BMD assessment and fracture risk calculation is essential for diagnosing osteoporosis in men.
  • Pharmacological treatment with bone-active agents is recommended for men identified as high risk for fracture.
  • Individualized treatment plans are necessary to effectively reduce fracture risk in the male population.