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2 0 0 0 OA Inhibition of Helicobacter pylori Motility by (+)-Syringaresinol from Unripe Japanese Apricot

著者
Mitsuo Miyazawa Hirotoshi Utsunomiya Ken-ichi Inada Tomoki Yamada Yoshiharu Okuno Harunari Tanaka Masae Tatematsu
出版者
The Pharmaceutical Society of Japan
雑誌
Biological and Pharmaceutical Bulletin (ISSN:09186158)
巻号頁・発行日
vol.29, no.1, pp.172-173, 2006 (Released:2006-01-01)
参考文献数
16
被引用文献数
24 56
A methanol extract from unripe Japanese apricot showed inhibitory activity of Helicobacter pylori motility. Inhibitory compound 1 was isolated and identified as (+)-syringaresinol (1) by spectoroscopic means. (+)-Syringaresinol (1) inhibited >90% of the H. pylori motility at a concentration of 500 μg/ml and the IC50 value was 50 μg/ml.

1 0 0 0 OA A Prunus mume Extract Stimulated the Proliferation and Differentiation of Osteoblastic MC3T3-E1 Cells

著者
Ryohei KONO Yoshiharu OKUNO Ken-ichi INADA Akihiko TOKUDA Hiroshi HASHIZUME Munehito YOSHIDA Misa NAKAMURA Hirotoshi UTSUNOMIYA
出版者
Japan Society for Bioscience, Biotechnology, and Agrochemistry
雑誌
Bioscience, Biotechnology, and Biochemistry (ISSN:09168451)
巻号頁・発行日
vol.75, no.10, pp.1907-1911, 2011-10-23 (Released:2011-10-23)
参考文献数
35
被引用文献数
19
Osteoporosis is a serious disease caused by decreased bone mass. There is constant matrix remodeling in bones, by which bone formation is performed by osteoblastic cells, whereas bone resorption is accomplished by osteoclast cells. We investigated the effect of a Japanese apricot (Prunus mume SIBE. et ZUCC.) extract on the proliferation and osteoblastic differentiation in pre-osteoblastic MC3T3-E1 cells. An alkaline phosphatase (ALP) activity assay, cell proliferation assay, alizarin red staining and expression analysis of osteoblastic genes were carried out to assess the proliferation and osteoblastic differentiation. The water-soluble fraction of Prunus mume (PWF) increased the ALP activity, cell proliferation and mineralization. The gene expression of osteopontin and bone morphogenetic protein-2, which are markers in the early period of osteoblastic differentiation, were significantly enhanced by the PWF treatment. PWF therefore stimulated the proliferation and osteoblastic differentiation of cells and may have potential to prevent osteoporosis.