- 著者
- Masahito TSUBATA Kinya TAKAGAKI Shin-ichi HIRANO Koichi IWATANI Chiyuki ABE
- 出版者
- Center for Academic Publications Japan
- 雑誌
- Journal of Nutritional Science and Vitaminology (ISSN:03014800)
- 巻号頁・発行日
- vol.57, no.3, pp.251-257, 2011 (Released:2011-09-09)
- 参考文献数
- 33
- 被引用文献数
- 5 6
Flavangenol (FG), an extract of French maritime pine bark (Pinus maritime) mainly contains proanthocyanidin in oligomers. It has many physiological effects, including antioxidant and anti-atherosclerosis. In this study, we evaluated the effects of FG on rat collagen-induced arthritis, a model of human rheumatoid arthritis. The rats were fed with the diet of control, 0.3% FG, or 1% FG for 4 wk after the induction of arthritis. The FG diets, compared with the control diet, suppressed the increase in arthritic score and swelling of the paws in a dose-dependent manner. Histopathological examination revealed evidence that the 1% FG diet suppressed acute and chronic articular lesions in the rats. In addition, the FG diets (0.3% and 1%) suppressed the production of nitric oxide in the plasma of the rats. These results suggest that dietary FG has beneficial effects on collagen-induced arthritis in rats by inhibiting the acute and chronic inflammatory reactions.