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PubMed · 16206038

Neuroprotective flavonoids from Flemingia macrophylla.

Young-Ji Shiao·Chuen-Neu Wang·Wan-Yu Wang·Yun-Lian Lin
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Abstract

Using an Abeta-induced neurotoxicity blocking assay to direct fractionation, three new flavonoids, fleminginin (1), flemingichromone (2), and flemingichalcone (3), and twenty known compounds were isolated from the active fractions of the aerial parts of Flemingia macrophylla. The structures of 1 - 3 were elucidated on the basis of spectroscopic data. When tested for neuroprotective activity, compound 2, osajin ( 4), 5,7,4'-trihydroxy-6,8-diprenylisoflavone (5), 5,7,4'-trihydroxy-6,3'-diprenylisoflavone (6), and aureole (7) protected neuronal cells from Abeta-induced damage with EC50 values of 31.43 +/- 3.16, 5.01 +/- 1.28, 11.25 +/-1.51, 4.47 +/- 0.65, 12.09 +/- 2.55 microM, respectively.

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Alzheimer DiseaseAmyloid beta-PeptidesAnimalsCells, CulturedCerebral CortexFabaceaeFlavonoidsNeuroprotective AgentsPhytotherapyPlant Components, AerialPlant ExtractsRatsRats, Sprague-DawleyJournal ArticleResearch Support, Non-U.S. Gov't

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Young-Ji Shiao, Chuen-Neu Wang, Wan-Yu Wang, Yun-Lian Lin. 2005. Neuroprotective flavonoids from Flemingia macrophylla.. https://doi.org/10.1055/s-2005-871297

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