Recovery from iron deficiency in rats by the intake of recombinant yeast producing human H-ferritin.

Abstract

OBJECTIVE:

This study examined whether iron accumulated in ferritin-producing recombinant microbes is bioavailable to rats with iron deficiency.

METHODS:

Rats induced with iron deficiency were treated with iron preparations of ferrous ammonium sulfate, horse spleen ferritin, control yeast, and ferritin-producing recombinant yeast for 14 d. The bioavailability of iron was examined by measuring hemoglobin concentration, hematocrit value, and tissue iron stores. Differences between dietary groups were determined by one-way analysis of variance, and P < 0.05 was considered statistically significant.

RESULTS:

Based on hemoglobin concentration and hematocrit value, iron in ferrous ammonium sulfate, horse spleen ferritin, and ferritin-producing yeast were bioavailable to rats and cured iron deficiency. The efficacy of ferritin and ferritin-producing yeast was also confirmed in establishing tissue iron stores after induction of iron deficiency.

CONCLUSIONS:

The iron sources of ferritin and ferritin-producing yeast were as effective in recovery from iron deficiency as the iron compounds of ferric citrate and ferrous ammonium sulfate. The results suggest that the iron stored in the ferritin of recombinant yeast is bioavailable, and that recombinant yeast may contribute widely as a source of iron to resolve the global problem of iron deficiency.

• Authors: Yu-Jung Chang, Min-Young Jo, Eun-Hee Hwang, Chung-Ung Park, Kyung-Suk Kim
• Journal: Nutrition (Burbank, Los Angeles County, Calif.) (Nutrition) Vol. 21 Issue 4 Pg. 520-4 (Apr 2005) ISSN: 0899-9007 [Print] United States
• PMID: 15811774 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't)

Chemical References

• Ferric Compounds
• Ferrous Compounds
• Hemoglobins
• Iron, Dietary
• Quaternary Ammonium Compounds
• ferric citrate
• Ferritins
• ammonium ferrous sulfate
• Iron

Topics

• Analysis of Variance
• Animals
• Biological Availability
• Body Weight (physiology)
• Ferric Compounds (administration & dosage)
• Ferritins (administration & dosage, biosynthesis)
• Ferrous Compounds (administration & dosage)
• Hematocrit (methods)
• Hemoglobins (analysis)
• Iron (metabolism)
• Iron Deficiencies
• Iron, Dietary (pharmacokinetics)
• Male
• Nutrition Disorders (diet therapy)
• Quaternary Ammonium Compounds (administration & dosage)
• Rats
• Rats, Sprague-Dawley
• Saccharomyces cerevisiae
• Treatment Outcome
• Yeast, Dried (administration & dosage)