Structure and Antioxidant Activity Relationships of Isoflavonoids from Dalbergia parviflora

Autor: Worrawat Promden, Orawan Monthakantirat, Kaoru Umehara, Hiroshi Noguchi, Wanchai De-Eknamkul

Publikováno v: Molecules, Vol 19, Iss 2, Pp 2226-2237 (2014)

The antioxidant activities of 24 isoflavonoids that were previously isolated as pure compounds from Dalbergia parviflora were evaluated using three different in vitro antioxidant-based assay systems: xanthine/xanthine oxidase (X/XO), ORAC, and DPPH.

Externí odkaz: https://doaj.org/article/a70bfa5e222f4180963aefcf981a426f

Cajanin Suppresses Melanin Synthesis through Modulating MITF in Human Melanin-Producing Cells

Autor: Wanchai De-Eknamkul, Chatchai Chaotham, Kaoru Umehara, Ponsawan Netcharoensirisuk

Publikováno v: Molecules, Vol 26, Iss 6040, p 6040 (2021)
Molecules
Volume 26
Issue 19

Despite its classification as a non-life-threatening disease, increased skin pigmentation adversely affects quality of life and leads to loss of self-confidence. Until now, there are no recommended remedies with high efficacy and human safety for hyp

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4c6ccf9373f869291dd18097f8ae051
https://www.mdpi.com/1420-3049/26/19/6040

Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.

Correlation between the Potency of Flavonoids on Mushroom Tyrosinase Inhibitory Activity and Melanin Synthesis in Melanocytes

Autor: Hiroshi Noguchi, Worrawat Promden, Wanchai De-Eknamkul, Orawan Monthakantirat, Kaoru Umehara, Wittawat Viriyabancha

Publikováno v: Molecules, Vol 23, Iss 6, p 1403 (2018)
Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry
Molecules
Volume 23
Issue 6

Twenty-seven flavonoids isolated from Dalbergia parviflora with vast structural diversity were screened for inhibitory activity against mushroom and murine tyrosinases using l-DOPA as the substrate. Among the flavonoids tested, only four&mdash
k

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83fe9439b2c476e9dd78287425b6c1f5
http://www.mdpi.com/1420-3049/23/6/1403

Bioactive constituents from the stems of Dalbergia parviflora

Autor: Siwames Netsopa, Uraiwan Songsiang, Siripit Pitchuanchom, Suchana Wanich, Komphet Uanporn, Chavi Yenjai

Publikováno v: Fitoterapia. 80:427-431

From the stems of Dalbergia parviflora , three known flavonoids, six known isoflavonoids, a new isoflavone, dalparvone ( 2 ) and a new cinnamyl derivative, dalparvinene ( 6 ) were isolated and characterized. Isoflavan 3 exhibited strong cytotoxicity

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::925fba0e687743f9d3530c5edb84b7ca
https://doi.org/10.1016/j.fitote.2009.06.002