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Updated: Jul 14, 2026

A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro

A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro

Published on: June 2, 2022

[Calcification in nonfunctioning transplanted kidneys].

R Peces¹, R J Sánchez, E J Fernández

¹Servicio de Nefrología, Hospital Universitario La Paz, Madrid. cpeces@varnet.com

Nefrologia : Publicacion Oficial De La Sociedad Espanola Nefrologia

|June 15, 2007

Summary

Failed kidney transplants can develop extensive calcification. This study reports two such cases, highlighting the unclear causes and suggesting nephrectomy is often unnecessary for these calcified renal allografts.

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Murine Kidney Transplant Technique

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Mouse Kidney Transplantation: Models of Allograft Rejection

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Area of Science:

Nephrology
Transplantation Immunology
Medical Imaging

Background:

Failed renal allografts are frequently retained in patients undergoing dialysis or retransplantation.
These non-functioning organs can exhibit significant calcification.

Observation:

The study presents two cases of extensive calcification in end-stage renal allografts.
One patient was on chronic hemodialysis, while the other had normal renal function post-retransplantation.

Findings:

The exact pathogenesis and localization factors for renal allograft calcification remain unclear.
Potential contributing factors include elevated calcium phosphate, secondary hyperparathyroidism, aluminum toxicity, and dialysis duration.
Local factors associated with chronic inflammatory rejection may also play a role.

Implications:

Understanding the mechanisms of calcification in renal allografts is crucial.
Current findings suggest that transplant nephrectomy is not routinely required for calcified end-stage renal allografts unless specific clinical indications exist.