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Beta2-microglobulin and renal bone disease.

T Wada1, T Miyata, H Sakai

  • 1Institute of Medical Sciences and Department of Internal Medicine, Tokai University School of Medicine, Isehara, Kanagawa, Japan.

Peritoneal Dialysis International : Journal of the International Society for Peritoneal Dialysis
|July 16, 1999
PubMed
Summary
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Dialysis-related amyloidosis (DRA) involves amyloid buildup in bones and joints, often seen in long-term dialysis patients. Advanced glycation end-products (AGEs) may play a role in its development.

Area of Science:

  • Nephrology
  • Rheumatology
  • Biochemistry

Background:

  • Dialysis-related amyloidosis (DRA) is a complication of long-term dialysis.
  • It affects bone and joint structures, causing symptoms like carpal tunnel syndrome and arthropathy.
  • Beta2-microglobulin is a primary component of the amyloid fibrils in DRA.

Purpose of the Study:

  • To summarize the characteristics, pathogenesis, and potential therapeutic strategies for dialysis-related amyloidosis.
  • To highlight the role of beta2-microglobulin and advanced glycation end-products (AGEs) in DRA.

Main Methods:

  • Review of existing literature on dialysis-related amyloidosis.
  • Analysis of the composition of amyloid fibrils, particularly beta2-microglobulin.
  • Discussion of proposed molecular pathogenesis involving carbonyl stress and AGEs.

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Main Results:

  • DRA incidence increases with dialysis duration and patient age.
  • Advanced glycation end-products (AGEs) from carbonyl stress are implicated in DRA pathogenesis.
  • Diagnosis relies on histology, supported by imaging techniques.

Conclusions:

  • DRA affects patients on both hemodialysis and peritoneal dialysis.
  • Understanding the role of AGEs may lead to new therapeutic targets.
  • High-flux biocompatible dialysis membranes may help delay DRA development.