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KMID : 1161420150180060663
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Journal of Medicinal Food
2015 Volume.18 No. 6 p.663 ~ p.676
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Noni (Morinda citrifolia L.) Fruit Extracts Improve Colon Microflora and Exert Anti-Inflammatory Activities in Caco-2 Cells
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Huang Hsin-Lun
Liu Cheng-Tzu
Chou Ming-Chih
Ko Chien-Hui
Wang Chin-Kun
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Abstract
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Intestinal microflora and inflammation are associated with the risk of inflammatory bowel diseases. Noni (Morinda citrifolia L.) has various bioactivities, but its effect on colon health remains unknown. This study focused on the effects of fermented noni fruit extracts on colon microflora and inflammation of colon epithelial cells. The anti-inflammatory activities of ethanol and ethyl acetate extracts on Caco-2 cells were evaluated including interleukin-8 (IL-8) and cyclooxygenase-2 (COX-2). The growth of Lactobacillus and Bifidobacterium species was promoted by ethanol extract. Ethyl acetate extract decreased intracellular reactive oxygen species and significantly suppressed COX-2, IL-8, and prostaglandin E2 production and neutrophil chemotaxis by suppressing the translocation of the p65 subunit. Quercetin was the main contributor to the anti-inflammatory activity. The fermented noni fruit promoted probiotic growths and downregulated the intracellular oxidation and inflammation in Caco-2 cells. These results suggest that fermented noni fruit might protect against inflammatory diseases of the colon.
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KEYWORD
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anti-inflammatory, Caco-2 cells, colon microflora, fermented, noni fruit
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