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Anti-influenza Effect of the Major Flavonoids From Salvia Plebeia R.Br. Via Inhibition of Influenza H1N1 Virus Neuraminidase

Anti-influenza Effect of the Major Flavonoids From Salvia Plebeia R.Br. Via Inhibition of Influenza H1N1 Virus Neuraminidase

Sunghee Bang, Wei Li, Thi Kim Quy Ha, Changyeol Lee, Won Keun Oh, Sang Hee Shim

Nat Prod Res. 2018 May;32(10):1224-1228.

PMID: 28504013

Abstract:

To determine the compounds responsible for its anti-influenza activities, we isolated the three flavonoids, 6-hydroxyluteolin 7-O-β-d-glucoside (1), nepitrin (2), homoplantaginin (3) from the MeOH extract of Salvia plebeia R.Br. and identified them by comparing the spectroscopic data with that reported in the literature. The contents of the three flavonoids in the whole extract were 108.74 ± 0.95, 46.26 ± 2.19, and 69.35 ± 1.22 mg/g for 6-hydroxyluteolin 7-O-β-d-glucoside, nepitrin, and homoplantaginin, respectively, which demonstrates that they are the major constituents of this plant. The three flavonoids were evaluated for their inhibitory activities against influenza virus H1N1 A/PR/9/34 neuraminidase and H1N1-induced cytopathic effect (CPE) on Madin-Darby canine kidney (MDCK) cells. Our results demonstrated the following arrangement for their anti-influenza activities: nepitrin (2) > 6-hydroxyluteolin 7-O-β-d-glucoside (1) > homoplantaginin (3). The potent inhibitory activities of these flavonoids against influenza suggested their potential to be developed as novel anti-influenza drugs in the future.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP17680841-B	Homoplantaginin		17680-84-1	Price

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