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Arsenic Immunotoxicity and Immunomodulation by Phytochemicals: Potential Relations to Develop Chemopreventive Approaches

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Arsenic (As) contaminates drinking water worldwide, and As exposure, hypersensitivity and deficiency are involved in the immunopathogenesis of various health problems. Its chemoprevention thus has a high health impact. Given its oxidative potential, antioxidant compounds are good candidates to counteract arsenic's deleterious effects on humans. Phytochemicals (e.g., phenolics, carotenoids, etc.) act through free radical chelation activity and regulation of cellular targets. Consequently, they are appropriate for developing anti-As strategies derived from plants, and Argentinean flora is rich in useful species. Several molecular pathways involved in immune regulation are at the same time targets of exogenous agents, and oxidative stress itself is a modulating phenomenon of immunity. Since xenohormesis has been described as the organic enhancement of resistance to stress conditions (e.g., oxidation, pollution, etc.) by consuming xenobiotics, immunoxenohormesis implies also defense improvement. This review focuses on recent patents on the development of vegetable redox-related immunomodulating agents, which might be applied in As-induced dysfunctions, with their scientific basis being reviewed.
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Keywords: Antioxidant; arsenicosis; chemoprevention; cytoprotection; immunomodulation; medicinal plant; phytomedicine; polyphenol

Document Type: Research Article

Publication date: May 1, 2014

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  • Recent Patents on Inflammation & Allergy Drug Discovery publishes review articles by experts on recent patents in the field of inflammation and allergy drug discovery e.g. on novel bioactive compounds, analogs and targets. A selection of important and recent patents in the field is also included in the journal. The journal is essential reading for all researchers involved in inflammation and allergy drug design and discovery.
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