Iron infusion and deposition in the kidney

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Analyses of Proteinuria, Renal Infiltration of Leukocytes, and Renal Deposition of Proteins in Lupus-prone MRL/lpr Mice
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Analyses of Proteinuria, Renal Infiltration of Leukocytes, and Renal Deposition of Proteins in Lupus-prone MRL/lpr Mice

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Ramin Tolouian1, Babak Rajabi, Darius Boman

  • 1Division of Nephrology, Department of Internal Medicine, Paul L Foster School of Medicine, Texas Tech University Health Sciences Center, El Paso, TX 79905, USA. ramin.tolouian.@ttuhsc.edu

Clinical Nephrology
|November 28, 2012
PubMed

Insights

Intravenous ferumoxytol, used for iron deficiency anemia in chronic kidney disease (CKD), showed iron deposition in kidney tissues. Intravenous iron dextran did not exhibit this deposition, suggesting potential differences in renal iron handling.

Area of Science:

  • Nephrology
  • Hematology
  • Pharmacology

Background:

  • Parenteral iron therapy is crucial for managing iron deficiency anemia (IDA) in chronic kidney disease (CKD) patients.
  • Intravenous iron formulations are commonly used to replete iron stores.

Observation:

  • A retrospective case study examined iron staining in renal tissues of two CKD patients post-intravenous iron administration.
  • Renal biopsies were performed after ferumoxytol or iron dextran infusion.

Findings:

  • Ferumoxytol infusion resulted in curvilinear iron deposition within renal tissue macrophages and interstitium.
  • No significant iron deposition was observed in the kidney of a patient who received intravenous iron dextran.

Implications:

  • The distinct iron deposition patterns suggest differences in the pharmacokinetic profiles and renal handling of ferumoxytol versus iron dextran.
  • Further research is warranted to investigate potential renal toxicity associated with iron-induced oxidant stress in CKD patients, particularly with ferumoxytol use.
Abstract

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