- 著者
- Hiroki Sasaki Yoichi Sunagawa Kenji Takahashi Atsushi Imaizumi Hiroyuki Fukuda Tadashi Hashimoto Hiromichi Wada Yasufumi Katanasaka Hideaki Kakeya Masatoshi Fujita Koji Hasegawa Tatsuya Morimoto
- 出版者
- The Pharmaceutical Society of Japan
- 雑誌
- Biological and Pharmaceutical Bulletin (ISSN:09186158)
- 巻号頁・発行日
- vol.34, no.5, pp.660-665, 2011-05-01 (Released:2011-05-01)
- 参考文献数
- 26
- 被引用文献数
- 68 326
Curcumin is a polyphenol that is commonly used for its perceived health benefits. However, the absorption efficacy of curcumin is too low to exhibit beneficial effects. We have successfully developed a highly absorptive curcumin dispersed with colloidal nano-particles, and named it THERACURMIN. The absorption efficacy of THERACURMIN was investigated and compared with that of curcumin powder. The area under the blood concentration–time curve (AUC) after the oral administration of THERACURMIN was found to be more than 40-fold higher than that of curcumin powder in rats. Then, healthy human volunteers were administered orally 30 mg of THERACURMIN or curcumin powder. The AUC of THERACURMIN was 27-fold higher than that of curcumin powder. In addition, THERACURMIN exhibited an inhibitory action against alcohol intoxication after drinking in humans, as evidenced by the reduced acetaldehyde concentration of the blood. These findings demonstrate that THERACURMIN shows a much higher bioavailability than currently available preparations. Thus, THERACURMIN may be useful to exert clinical benefits in humans at a lower dosage.
- 著者
- Yoichi Sunagawa Nobuko Okamura Yusuke Miyazaki Kana Shimizu Mai Genpei Masafumi Funamoto Satoshi Shimizu Yasufumi Katanasaka Eriko Morimoto Hajime Yamakage Maki Komiyama Noriko Satoh-Asahara Hiromichi Wada Mika Suzuki Koji Hasegawa Tatsuya Morimoto
- 出版者
- The Pharmaceutical Society of Japan
- 雑誌
- Biological and Pharmaceutical Bulletin (ISSN:09186158)
- 巻号頁・発行日
- vol.41, no.4, pp.504-509, 2018-04-01 (Released:2018-04-01)
- 参考文献数
- 24
- 被引用文献数
- 2 7
Neck and shoulder stiffness is a typical subjective symptom in developed countries. This stiffness is caused by factors such as muscle tension and poor blood flow, leading to reduce work efficiency and diminish QOL. NKCP®, a natto-derived dietary food supplement whose main component is bacillopeptidase F, has antithrombotic, fibrinolytic, and blood viscosity-lowering effects. Here, we investigated the effect of NKCP® on neck and shoulder stiffness in a double-blind placebo-controlled randomized crossover study. Thirty subjects with neck and shoulder stiffness were randomly divided into 2 groups and ingested 250 mg of NKCP® or placebo daily for 4 weeks. Headache score significantly improved in the NKCP® group compared to the placebo group. Moreover, NKCP® significantly improved the score of visual analogue scale for neck and shoulder stiffness and pain, reduced muscle stiffness of the neck, and increased the skin surface temperature of neck and shoulders, compared to before ingestion. No adverse effects were observed during this study. These results suggest that NKCP® may alleviate headaches and chronic neck and shoulder stiffness and pain.