4.7 Article

Microalgal nanosized polyphosphate bodies as novel iron supplements for iron-deficiency anemia treatment in rats

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FOOD BIOSCIENCE
卷 39, 期 -, 页码 -

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ELSEVIER
DOI: 10.1016/j.fbio.2020.100834

关键词

Polyphosphate bodies; Iron-deficiency anemia; Iron supplement; Hemoglobin regeneration efficiencies; Nanosized iron

资金

  1. Technology development projects of Shandong province, China [20120132110022]
  2. Ph.D. Programs Foundation of Ministry of Education of. China [2013GHY11536]
  3. China Scholarship Council (CSC, China) [201706330062]

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The study found that PPB and FeSO4 were more effective in treating iron-deficiency anemia compared to FC and PolyP. PPB supplied more intestinal total soluble, low-molecular weight, and nanosized iron than FC and PolyP, making it a novel natural iron supplement for iron-deficiency anemia treatment.
Nanosized polyphosphate bodies (PPB) are potential iron supplements for iron deficiency treatment, which can be produced by microalgal cell factories. To investigate the effect of PPB on iron-deficiency anemia, irondeficient rats were constructed and given feeds with different iron supplements. Four iron supplements, i.e. PPB from microalgae, FeSO4, ferric citrate (FC), and synthetic polyphosphate (PolyP) + FC, were investigated in iron-deficiency anemia treatment at three different dietary intervention stages (i.e. day 3, 7, and 10). These four iron supplements showed similar hemoglobin (Hb) improvements at day 3 and 7, respectively; however, PPB and FeSO 4 resulted in higher increased Hb and reticulocyte Hb than FC and PolyP at day 10. The Hb regeneration efficiencies followed the order: PolyP (42.6%) approximate to FC (47.7%) < FeSO4 (56.1%) approximate to PPB (56.2%). The absolute reticulocyte content increased from day 3 to day 7 then decreased at day10 in all iron repletion groups. PPB diet supplied more intestinal total soluble, low-molecular weight, and nanosized iron than FC and PolyP diets. Overall, PPB are novel natural iron supplements that can be used for iron-deficiency anemia treatment, opened new possibilities to develop natural microalgal nanoparticles as high-value products in human health improvement.

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