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Boric acid: a potential chemoprotective agent against aflatoxin b1 toxicity in human blood

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Abstract

Aflatoxin B1 is the most potent pulmonary and hepatic carcinogen. Since the eradication of Aflatoxin B1 contamination in agricultural products has been difficult, the use of natural or synthetic free radical scavengers could be a potential chemopreventive strategy. Boric acid is the major component of industry and its antioxidant role has recently been reported. The present study assessed, for the first time, the effectiveness of boric acid following exposure to Aflatoxin B1 on human whole blood cultures. The biochemical characterizations of glutathione and some enzymes have been carried out in erythrocytes. Alterations in malondialdehyde level were determined as an index of oxidative stress. The sister-chromatid exchange and micronucleus tests were performed to assess DNA damages in lymphocytes. Aflatoxin B1 treatment significantly reduced the activities of antioxidants by increasing malondialdehyde level (30.53 and 51.43%) of blood, whereas, the boric acid led to an increased resistance of DNA to oxidative damage induced by Aflatoxin B1 in comparison with control values (P < 0.05). In conclusion, the support of boric acid was especially useful in Aflatoxin-toxicated blood. Thus the risk on tissue targeting of Aflatoxin B1 could be reduced ensuring early recovery from its toxicity.

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Acknowledgments

This investigation was supported by Atatürk University (BAP-2004/172 and 2008/76). We are greatful to volunteers for the blood samples. The author is greatful to Savaş Yeşilyurt for his proofreading the article.

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  1. Department of Biology, Faculty of Sciences, Atatürk University, 25240, Erzurum, Turkey

    Hasan Turkez & Fatime Geyikoglu

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  1. Hasan Turkez
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  2. Fatime Geyikoglu
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Correspondence to Hasan Turkez.

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Turkez, H., Geyikoglu, F. Boric acid: a potential chemoprotective agent against aflatoxin b1 toxicity in human blood. Cytotechnology 62, 157–165 (2010). https://doi.org/10.1007/s10616-010-9272-2

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