Protective effects of acerola juice on genotoxicity induced by iron in vivo

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Abstract

Metal ions such as iron can induce DNA damage by inducing reactive oxygen species (ROS) and oxidative stress. Vitamin C is one of the most widely consumed antioxidants worldwide, present in many fruits and vegetables, especially in Malpighia glabra L., popularly known as acerola, native to Brazil. Acerola is considered a functional fruit due to its high antioxidant properties and phenolic contents, and therefore is consumed to prevent diseases or as adjuvant in treatment strategies. Here, the influence of ripe and unripe acerola juices on iron genotoxicity was analyzed in vivo using the comet assay and micronucleus test. The comet assay results showed that acerola juice exerted no genotoxic or antigenotoxic activity. Neither ripe nor unripe acerola juices were mutagenic to animals treated with juices, in micronucleus test. However, when compared to iron group, the pre-treatment with acerola juices exerted antimutagenic activity, decreasing significantly micronucleus mean values in bone marrow. Stage of ripeness did not influence the interaction of acerola compounds with DNA, and both ripe and unripe acerola juices exerted protective effect over DNA damage generated by iron.

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Horta, R. N., Kahl, V. F. S., Sarmento, M. D. S., Nunes, M. F. S., Porto, C. R. M., Andrade, V. M. D., … Silva, J. D. (2016). Protective effects of acerola juice on genotoxicity induced by iron in vivo. Genetics and Molecular Biology, 39(1), 122–128. https://doi.org/10.1590/1678-4685-GMB-2015-0157

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