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  • Title: Amelioration of autoimmune arthritis by naringin through modulation of T regulatory cells and Th1/Th2 cytokines.
    Author: Ahmad SF, Zoheir KM, Abdel-Hamied HE, Ashour AE, Bakheet SA, Attia SM, Abd-Allah AR.
    Journal: Cell Immunol; 2014 Feb; 287(2):112-20. PubMed ID: 24487035.
    Abstract:
    Naringin, a well-known flavanone glycoside found in grapefruit and other citrus fruits, was determined to be an effective anti-inflammatory compound. We investigated the effect of naringin on the key mediators of arthritic inflammation, namely T cell subsets, CD4(+)GITR(+) expressing cells, CD4(+)CD25(+)Foxp3(+) (Treg), Th1/Th2 cytokines and inflammatory mediators. We treated Balb/c mice (p.o.) with naringin (20, 40 and 80 mg/kg) for 14 days. Compared with the vehicle-treated and arthritic-control mice, the naringin treatment demonstrated a considerable decrease in the level of T cells, CD4(+)GITR(+), Th1 cytokine and inflammatory mediator expressions. In contrast, naringin treatment resulted in significantly up-regulated Treg and Th2 cytokine levels. Therefore, the naringin-induced inhibition of the T cells, various pro-inflammatory cytokines and inflammatory mediators that facilitate cellular infiltration into the joints might have contributed to its anti-arthritic activity. Our data suggest that naringin diminished the AIA in mice and it could be a potential alternative/adjunct treatment for RA.
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