Abstract
The in vivo antimutagenicity of Se-enriched rice was evaluated by bone marrow micronucleus and testicle chromosomal aberrations assay in mice exposed to cyclophosphamide (CP) and mitomycin C (MMC). Regular rice did not alter the occurrence of chemical-induced mutation. However, the addition of Se-enriched rice or selenite significantly inhibited the incidence of CP-induced micronuclei and MMC-induced chromosomal aberration in mice and the effect was dose-dependent. Providing selenite or Se-enriched rice also significantly increased the activity of glutathione peroxidase in liver and the selenium concentration in blood compared to regular rice. No significant differences were found in mice body weight gain. These results revealed the antimutagenic potential of Se-enriched rice against chemical-induced mutation.
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