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Neuroprotective Effects of Methyl-3-O-methyl gallate Against Sodium Fluoride-Induced Oxidative Stress in the Brain of Rats

Abstract

Methyl-3-O-methyl gallate (M3OMG) is a rare natural product that showed promising in vitro antioxidant activities. In this study, the protective role of synthetic M3OMG against sodium fluoride (NaF)-induced oxidative stress in rat brain was evaluated. Animals were treated with either M3OMG (10 and 20 mg/kg i.p.), vitamin C (10 mg/kg i.p.) as the standard antioxidant or the vehicle (5 % dimethyl sulfoxide; 1 ml/kg) for 1 week. Oxidative stress was induced in the brain by adding 600 ppm NaF in the drinking water for 7 days. At the end of the treatment period, the levels of thiobarbituric acid reactive substances (TBARS), reduced glutathione and the activities of antioxidant enzymes (superoxide dismutase and catalase) were evaluated in brain homogenates. M3OMG treatment mitigated the NaF-induced oxidative stress through normalization of the level of TBARS, reduced levels of glutathione and by the restoration of the diminished antioxidant enzyme activities. In conclusion, M3OMG could have a potential for treating neurotoxicity induced by fluoride or related environmental pollutants.

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Acknowledgments

This study was partly supported by the research grant of University of Greenwich (UK) and the National Elite’s Foundation of Iran (Iran) for this study. We also dedicate this paper to Mrs. Seyed Maryam Nabavi and in memory of Mr. Seyed Ali Asghar Nabavi.

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Correspondence to Seyed Mohammad Nabavi.

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Nabavi, S.F., Nabavi, S.M., Habtemariam, S. et al. Neuroprotective Effects of Methyl-3-O-methyl gallate Against Sodium Fluoride-Induced Oxidative Stress in the Brain of Rats. Cell Mol Neurobiol 33, 261–267 (2013). https://doi.org/10.1007/s10571-012-9893-4

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Keywords

  • Antioxidant enzymes
  • Brain
  • Oxidative stress
  • Sodium fluoride