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Published on: March 1, 2022

[The pathophysiology of adynamic bone disease]

K Yokoyama1, T Shigematsu, Y Ogura

  • 1Division of Nephrology and Hypertension, Tokyo Jikei University School of Medicine.

Clinical Calcium
|March 19, 2005
PubMed

Insights

Adynamic bone disease, common in dialysis patients, shows reduced bone turnover. Skeletal resistance to parathyroid hormone (PTH) is a key factor, potentially involving PTH receptor downregulation.

Area of Science:

  • Nephrology
  • Endocrinology
  • Bone Metabolism

Context:

  • Adynamic bone disease is a prevalent skeletal complication in patients undergoing dialysis.
  • It is characterized by markedly reduced bone turnover.
  • It is nearly as prevalent as osteitis fibrosis in hemodialysis patients.

Purpose:

  • To summarize the current understanding of adynamic bone disease pathophysiology in dialysis patients.
  • To highlight the role of skeletal resistance to parathyroid hormone (PTH).

Summary:

  • Adynamic bone disease, noted since the 1980s, is the predominant bone lesion in peritoneal dialysis patients.
  • Unlike osteomalacia, it features reduced bone turnover without increased osteoid formation.
  • Skeletal resistance to PTH's calcemic action is a crucial factor, with recent studies suggesting PTH receptor downregulation and osteoclast inhibitory factor involvement.

Impact:

  • Provides insight into the pathophysiology of a common complication in dialysis patients.
  • Highlights potential therapeutic targets related to PTH signaling and bone metabolism.
  • Contributes to understanding bone disease management in chronic kidney disease.

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