Vitamin E protective effects on genomic and cellular damage caused by paediatric preventive supplementation for

Rocío Celeste Gambaro1, Analía Seoane1, Gisel Padula1,2

  • 1IGEVET, Instituto de Genética Veterinaria "Ing. Fernando N. Dulout" (UNLP-CONICET LA PLATA), Facultad de Ciencias Veterinarias, Universidad Nacional de La Plata, La Plata1900, Argentina.

Insights

Daily iron supplementation may harm cell viability and increase oxidative stress, unlike weekly iron. Vitamin E may mitigate these adverse effects, offering a safer approach to preventing iron deficiency anaemia.

Area of Science:

  • Biochemistry
  • Hematology
  • Cell Biology

Background:

  • Iron deficiency is a primary cause of anemia, with high prevalence in Argentina.
  • Current pediatric recommendations include daily ferrous sulfate supplementation for anemia prevention.
  • Potential risks of excess iron, such as oxidative stress and cytomolecular damage, are a concern.

Purpose of the Study:

  • To evaluate the in vitro effects of daily versus weekly ferrous sulfate supplementation combined with vitamin E.
  • To assess impacts on cell viability, oxidative stress, and genomic damage in peripheral blood cultures.

Main Methods:

  • In vitro culture of peripheral blood cells.
  • Experimental groups included controls, vitamin E alone, weekly ferrous sulfate with vitamin E, and daily ferrous sulfate with vitamin E.
  • Measurements included cell viability, reactive oxygen species, lipid peroxidation, and cytomolecular damage.

Main Results:

  • Daily ferrous sulfate significantly decreased cell viability and increased oxidative stress markers compared to weekly supplementation.
  • Excess iron from daily supplementation was linked to increased reactive oxygen species, lipid peroxidation, and genomic damage.
  • Vitamin E demonstrated a potential to reduce ferrous sulfate-induced oxidative stress and DNA damage.

Conclusions:

  • Daily ferrous sulfate supplementation poses risks of reduced cell viability and increased oxidative/genomic damage.
  • Weekly ferrous sulfate supplementation appears safer and effective for preventing anemia.
  • Vitamin E may serve as a protective agent against iron-induced cellular damage.

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