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Non-transferrin-bound iron during allogeneic stem cell transplantation.
L Sahlstedt1, F Ebeling, L von Bonsdorff
1Department of Medicine, Helsinki University Central Hospital, Helsinki, Finland. leila.sahlstedt@hus.fi
British Journal of Haematology
|May 31, 2001
Summary
Non-transferrin-bound iron (NTBI) was detected in all stem cell transplantation (SCT) patients. High transferrin saturation (>80%) correlated with NTBI presence, suggesting a link to transplantation complications.
Area of Science:
- Biochemistry
- Hematology
- Transplantation immunology
Background:
- Non-transferrin-bound iron (NTBI) may cause hydroxyl radical formation.
- This process is implicated in complications following stem cell transplantation (SCT).
Purpose of the Study:
- To investigate the occurrence and characteristics of NTBI in adult allogeneic SCT patients.
- To determine the relationship between transferrin saturation and NTBI levels.
Main Methods:
- Studied 10 adult allogeneic SCT patients over 20 days.
- Measured NTBI using bleomycin-detectable iron assay.
- Monitored transferrin saturation levels.
Main Results:
- NTBI was detected in all patients for 6-18 days, peaking around day -4.
- Transferrin saturation exceeded 80% in all patients and correlated with NTBI appearance.
- A transferrin saturation threshold of 80% was associated with NTBI detection.
Conclusions:
- High transferrin saturation is linked to NTBI formation in SCT patients.
- NTBI may contribute to transplantation-related morbidity.
- Strategies to prevent NTBI effects could reduce complications.