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Magnesium can protect against vanadium-induced lipid peroxidation in the hepatic tissue

Agnieszka Scibior1, Dorota Gołębiowska, Irmina Niedźwiecka

  • 1Department of Zoology and Invertebrate Ecology, The John Paul II Catholic University of Lublin, Lublin, Poland. cellbiol@kul.lublin.pl

Oxidative Medicine and Cellular Longevity
|June 15, 2013
PubMed

Insights

Magnesium sulfate (MS) protects against sodium-metavanadate (SMV) induced liver damage by reducing lipid peroxidation. Adequate magnesium intake may prevent vanadium-induced oxidative stress.

Area of Science:

  • Biochemistry
  • Toxicology
  • Nutritional Science

Background:

  • Sodium-metavanadate (SMV) exposure can induce oxidative stress and lipid peroxidation (LPO) in the liver.
  • Magnesium (Mg) is an essential mineral with potential protective roles against cellular damage.

Purpose of the Study:

  • To investigate the protective effect of magnesium sulfate (MS) against SMV-induced LPO in vivo and in vitro.
  • To elucidate the mechanisms underlying the interaction between magnesium and vanadium in the context of oxidative stress.

Main Methods:

  • Animal model: Rats were intoxicated with SMV for 18 weeks, with some groups receiving MS co-administration.
  • Biochemical assays: Malondialdehyde (MDA) generation was measured as an indicator of LPO in liver tissues and supernatants.
  • In vitro experiments: Liver supernatants were treated with exogenous iron (Fe) or vanadium (V) to assess LPO modulation by magnesium.

Main Results:

  • SMV intoxication significantly increased MDA generation in rat liver.
  • Coadministration of MS with SMV normalized MDA levels to control values.
  • In vitro studies indicated synergistic interactions between vanadium and iron/vanadium, and antagonistic interactions with magnesium, on MDA production.

Conclusions:

  • Magnesium sulfate demonstrates a protective effect against SMV-induced liver lipid peroxidation.
  • Adequate magnesium intake may serve as a preventive strategy against vanadium-induced LPO.
  • The protective action of magnesium involves antagonistic interactions with vanadium and potentially other pro-oxidant metals.

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