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Reduction of individual or combined toxicity of fumonisin B 1 and zearalenone via dietary inclusion of organo-modified nano-montmorillonite in rats.

Fusarium mycotoxins are nature environmental contaminants worldwide in animal feed and human food resulting in a serious health risk. The present study aimed to evaluate the potential role of organo-modified nano-montmorillonite (OMNM) against the health risk and the oxidative stress resulted from the exposure of fumonisin (FB1 ) and zearalenone (ZEN) individually and in combination in rats. Eight groups of female Sprague Dawley rats were treated orally for 3 weeks including the control group, FB1 alone-treated group (50 mg/kg b.w.), ZEN alone-treated group (40 μg/kg b.w), FB1 plus ZEN-treated group, the group fed basal diet supplemented with OMNM (5 g/kg diet), and the groups fed basal diet supplemented with OMNM and treated with FB1 and/or ZEN. At the end of the experimental period, samples of blood and tissues were collected for different biochemical and histological analyses. The results revealed that administration of FB1 and/or ZEN resulted in significant disturbances in the biochemical parameters tested, lipid profiles, serum cytokines, oxidative stress indices, the activity of antioxidant enzymes, and the histological status of the liver and kidney. Co-administration of both mycotoxins indicated a synergistic effect. OMNM alone was safe and succeeded to reduce and/or prevent most of the toxicity of both mycotoxins. It could be concluded that OMNM is a novel and promising nanograde adsorbent suitable for the protection against the combined exposure to FB1 and ZEN.

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