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Bone Remodeling01:40

Bone Remodeling

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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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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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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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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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Murine Hind Limb Long Bone Dissection and Bone Marrow Isolation
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Renal Osteodystrophy-Time for Common Nomenclature.

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  • 1University of Washington, 1959 NE Pacific Street, Seattle, WA, 98195, USA. smott@uw.edu.

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The term renal osteodystrophy, bone disease in chronic kidney disease (CKD), has evolved since 1890. Standardizing its nomenclature is crucial for clear scientific and clinical communication.

Keywords:
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Area of Science:

  • Nephrology
  • Bone Metabolism
  • Medical History

Background:

  • Bone disease in chronic kidney disease (CKD) has been recognized since the late 19th century.
  • The term "renal osteodystrophy" was introduced in 1942 to describe these skeletal complications.
  • Understanding of bone physiology in CKD has significantly advanced since the term's inception.

Observation:

  • Historical documentation reveals bone disease in CKD patients dating back to 1890.
  • The terminology for histological findings in renal osteodystrophy has undergone numerous changes.
  • Inconsistent application of nomenclature by researchers has created communication challenges.

Findings:

  • The definition and understanding of renal osteodystrophy have evolved considerably over the past century.
  • Secular changes in CKD prevalence and management have influenced the presentation of bone disease.
  • Advancements in understanding bone physiology necessitate updated descriptive terms.

Implications:

  • Standardizing the nomenclature for renal osteodystrophy is essential for accurate scientific and clinical discourse.
  • International collaboration on nosography will improve communication among researchers and healthcare providers.
  • A unified terminology will facilitate the interpretation of research findings and enhance patient care strategies.