期刊
BIOLOGICAL & PHARMACEUTICAL BULLETIN
卷 40, 期 7, 页码 1116-1120出版社
PHARMACEUTICAL SOC JAPAN
DOI: 10.1248/bpb.b17-00161
关键词
osteoarthritis; beta-cryptoxanthin; chondrocyte; inflammatory cytokine
资金
- Ministry of Education, Culture, Sports, Science and Technology of Japan
- Grants-in-Aid for Scientific Research [16H06825] Funding Source: KAKEN
beta-Cryptoxanthin, which is primarily obtained from citrus fruits such as Satsuma mandarins, is a major carotenoid routinely found in human serum. Recently, we demonstrated that daily oral intake of beta-cryptoxanthin prevented ovariectomy-induced bone loss and ameliorated neuropathic pain in mice. Although beta-cryptoxanthin exerts preventive effects on various lifestyle-related diseases, there have been no studies on the effect of beta-cryptoxanthin on the development of osteoarthritis, the most common degenerative joint disease, which frequently leads to loss of ability and stiffness in the elderly. Here we showed that daily oral administration of beta-cryptoxanthin significantly prevented the development of osteoarthritis developed by surgically inducing knee joint instability in mice in vivo. Furthermore, in vitro experiments revealed that beta-cryptoxanthin markedly inhibited the expression of inflammatory cytokines and enzymes critical for the degradation of the extracellular matrix in primary chondrocytes. Our results suggest that oral supplementation of beta-cryptoxanthin would be beneficial for the maintenance of joint health and as prophylaxis against osteoarthritis.
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