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Related Experiment Video

Updated: Jan 26, 2026

Quantitating Iron Transport Across the Mouse Placenta In Vivo Using Nonradioactive Iron Isotopes
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Storage Iron Turnover from a New Perspective.

Hiroshi Saito1

  • 1Department of Internal Medicine, Kawamura Hospital, Gifu, Japan, eise@beetle.ocn.ne.jp.

Acta Haematologica
|April 4, 2019
PubMed
Summary
This summary is machine-generated.

Storage iron turnover, crucial for diagnosing hematological disorders, was clarified using serum ferritin kinetics. This method accurately quantifies iron pathways and corrects underestimations by ferrokinetics, improving iron status assessment.

Keywords:
Extra radio-iron fixation to red cellsFerritin and hemosiderinProblems in ferrokineticsSerum ferritin kineticsStorage iron turnover rate

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Area of Science:

  • Biochemistry
  • Hematology
  • Medical Diagnostics

Background:

  • Storage iron turnover has been poorly understood since 1953.
  • Previous ferrokinetic measurements of storage iron turnover (SIT) have shown errors, necessitating elucidation of their causes.

Purpose of the Study:

  • To introduce a novel computer-assisted method, serum ferritin kinetics, for quantifying ferritin and hemosiderin iron.
  • To elucidate the pathways of storage iron turnover and identify causes for underestimation by ferrokinetics.

Main Methods:

  • Utilized serum ferritin kinetics for quantitation of ferritin and hemosiderin iron.
  • Employed ferrokinetics and non-ferrokinetic methods to determine body iron turnover rate.
  • Compared serum ferritin kinetics-derived SIT with a standard SIT derived from major iron-storing cells.

Main Results:

  • Identified two iron pathways between ferritin and hemosiderin: iron mobilization (hemosiderin to ferritin) and iron deposition (ferritin to hemosiderin).
  • Confirmed underestimation of SIT by ferrokinetics due to radio-iron fixation to red cells.
  • Demonstrated that ferrokinetics does not reflect actual body iron turnover due to behavioral differences between radio-iron and endogenous iron.

Conclusions:

  • Serum ferritin kinetics provides accurate quantitation of iron pathways and storage iron turnover.
  • Ferrokinetics underestimates SIT and does not accurately reflect body iron turnover.
  • Findings offer a potential tool for diagnosing and treating hematological disorders.