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Anti-inflammatory activity of 4′,6,7-trihydroxy-5-methoxyflavone from Fridericia chica (Bonpl.) L.G.Lohmann

Abstract Fridericia chica, Bignoniaceae, is a tropical tree-creeper used as a traditional remedy for a number of diseases, highlighting inflammation. Our objective was to corroborate the popular anti-inflammatory use of… Click to show full abstract

Abstract Fridericia chica, Bignoniaceae, is a tropical tree-creeper used as a traditional remedy for a number of diseases, highlighting inflammation. Our objective was to corroborate the popular anti-inflammatory use of the hydroethanolic extract from the leaves (HEFc) and of its isolated 4′,6,7-trihydroxy-5-methoxyflavone (5-O-methylscutellarein) [1], described here for the first time. Quantitative analysis indicated 8.77 ± 0.23 mg/g of this compound in the extract. Neither HEFc nor [1] was cytotoxic in vitro. In LPS-induced peritonitis in mice, oral pre-treatment with HEFc or [1] led to decreased leukocyte migration to the peritoneal cavity and a reduction in the concentrations of pro-inflammatory cytokines (TNFα and IL-1β). Also, the anti-inflammatory cytokine IL-10 was enhanced following treatment with [1]. Overall, these results validate the traditional use of Fridericia chica as anti-inflammatory, and indicate that the compound 5-O-methylscutellarein may participate in this effect.

Keywords: anti inflammatory; trihydroxy methoxyflavone; fridericia chica

Journal Title: Natural Product Research
Year Published: 2018

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