Iron Chelated Cyclic Peptide, Ferrichrysin, for Oral Treatment of Iron Deficiency: Solution Properties and Efficacy in Anemic Rats
2007
Suzuki, S. | Fukuda, K. | Irie, M. | Hata, Y.
Ferrichrysin (Fcy), which is produced by Aspergillus oryzae and is present in foods used for human consumption, belongs to a group of hydroxamate siderophore ferric iron chelators. Fcy (100 mg/mL) dissolves completely at both pH 2.0 and 7.0, being very stable at a wide range of pH, high temperatures and pressures, with little reactivity to dietary iron absorption inhibitors, phytic acid, tannic acid, and catechin. We studied the effect of Fcy in male Sprague-Dawley rats with iron-deficiency anemia, which were separated into three different dietary groups (n = 5) and supplementing diets as follows: (i) ferric citrate, (ii) heme iron concentrate, and (iii) Fcy (35 mg Fe/kg diet) for three weeks. Fcy exhibited the same beneficial effect in improving iron deficiency anemia as ferric citrate, being significantly greater than the effect of heme iron. The iron concentration of liver in the Fcy group was 35% greater than that in the ferric citrate group. These findings indicate that Fcy could be an efficient oral iron supplement to prevent or treat iron deficiency.
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