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Hydroxyl radical formation catalysed by non-transferrin-bound iron (NTBI) might contribute to transplantation-related complications. The occurrence of NTBI in 10 adult allogeneic stem cell transplantation (SCT) patients was followed for 20 d. The transferrin saturation reached 99% on d -4 and remained > 80% thereafter. NTBI, measured as bleomycin-detectable iron, was detected for 6-18 d in all patients with a peak on d -4. High transferrin saturation levels were associated with the appearance of NTBI with a threshold at 80% saturation. Prevention of the potential deleterious effects of NTBI might reduce transplantation-related morbidity.
Sahlstedt et al. (Fri,) studied this question.