期刊
IMMUNOPHARMACOLOGY AND IMMUNOTOXICOLOGY
卷 33, 期 4, 页码 723-729出版社
TAYLOR & FRANCIS LTD
DOI: 10.3109/08923973.2011.564186
关键词
Collagen-induced arthritis; inflammation; TNF-alpha; rheumatoid arthritis; flavonoid; naringin
资金
- Kitasato University
Rheumatoid arthritis (RA) is closely related to the pathogenesis of tumor necrosis factor a in lesions. We investigated the suppressive effects of a Citrus flavanone naringin on inflammatory responses in mice with collagen-induced arthritis (CIA), a mouse model for RA. To investigate potential preventive and therapeutic effects of naringin, mice were given naringin orally three times a week from the second immunization with collagen (day 21) and from day 31, when symptoms of CIA had reached a plateau, respectively. In both cases, inflammation-related clinical scores for knee joints were significantly reduced by administration of naringin. Histological analyses demonstrated that representative phenomena, such as damage to interchondral joints, infiltration of inflammatory cells and pannus formation, were significantly depressed by treatment with naringin. In addition, increases in the expression of high-mobility group box-1 protein in the joints of mice with CIA were suppressed by naringin. These results suggest that oral administration of naringin might be effective for treating human patients with RA.
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