Antiallergic agents from natural sources 9. Inhibition of nitric oxide production by novel chalcone derivatives from Mallotus philippinensis (Euphorbiaceae).
- Akihiro Daikonya, S. Katsuki, S. Kitanaka
- Chemistry, BiologyChemical and pharmaceutical bulletin
- 1 November 2004
Three novel chalcone derivatives were isolated from the fruits of Mallotus philippinensis MUELL and results suggest that they have anti-inflammatory and immunoregulatory effects.
Anti-allergic agents from natural sources (4): anti-allergic activity of new phloroglucinol derivatives from Mallotus philippensis (Euphorbiaceae).
- Akihiro Daikonya, S. Katsuki, Jin-bin Wu, S. Kitanaka
- Chemistry, BiologyChemical & pharmaceutical bulletin
- 1 December 2002
Results suggest that the novel phloroglucinol derivatives have anti-inflammatory effects.
Analysis of saponins of wild Panax ginseng.
The composition and contents of neutral and acidic saponins of Chinese and Japanese wildginseng were analyzed and it is noteworthy that the content of ginsenoside-Ro, the glucuronide saponin of oleanolic acid, is remarkably high in the rhizome and main root of Chinese wild ginseng.
Studies on the Constiutents of Atractylodes lancea
From the polar portion of the methanolic extract of the fresh rhizomes of Atractylodes lancea DC., nine new sesquiterpene glycosides [two guaiane-type glycosides, atractylosides A and B (1 and 2),…
Cardenolides in the regenerated plants obtained from Strophanthus divaricatus calli
Phenylpropanoid derivatives from edible canna, Canna edulis.
Methyl Caffeate as an α-Glucosidase Inhibitor from Solanum torvum Fruits and the Activity of Related Compounds
- Keisuke Takahashi, Y. Yoshioka, J. Kawabata
- Chemistry, MedicineBioscience, biotechnology and biochemistry
- 23 April 2010
Methyl caffeate has a most favorable structure for both sucrase and maltase inhibition, except for a higher activity of methyl 3,4,5-trihydroxycinnamate against suCrase, which provides a prospect for antidiabetic usage of S. torvum fruit.
Chikusetsusaponin. VI. A New Saponin from the Rhizome of Panax pseudo-ginseng var. angustatus HARA.
A novel saponin named chikusetsusaponin VI was isolated from the rhizome of Panax pseudo-ginseng var. angustatus HARA and its structure was determined as 20(S)-protopanaxadiol…
Comparative studies on habitat and essential oils of Callicarpa longissima (Hemsl.) Merr. (Verbenaceae) from Tanegashima Island, Kagoshima Prefecture and Nichinan, Miyazaki Prefecture, southern Japan.
This paper aims to demonstrate the efforts towards in-situ applicability of nanofiltration technology in the field of medicine and its applications in the context of regenerative medicine.
[Study on the characterizations of genus Curcuma plants on the strains of C. longa L. and C. aromatica Salisb preserved at Izu station of NIHS].
- O. Iida, M. Kohjyouma, S. Katsuki, S. Sakamoto, T. Maitani, T. Watanabe
- Biology, MedicineKokuritsu Iyakuhin Shokuhin Eisei Kenkyujo hokoku…
C. longa can be easily distinguished by differences in the development of tuberous roots and the color of the rhizome cross section and no difference was observed between two strains of C. aromatica in terms of morphological characteristics.