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isoscutellarein/scutellaria
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4 results
[Determination of four effective components from total flavonoids of Scutellaria barbata by high performance liquid chromatography].
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OBJECTIVE
To establish a HPLC method for simultaneous determination of 4 effective components from total flavonoids of Scutellaria barbata (FSB).
METHODS
The HPLC method was developed on an Agilent Zorbax C₁₈ column (4.6 mm × 250 mm, 5 μm). The mobile phase was composed of 1% HAc and CH₃OH:CH₃CN
Inhibition of mouse liver sialidase by plant flavonoids.
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Flavonoids (103 species) were tested for inhibitory activity against mouse liver sialidase using sodium p-nitrophenyl-N-acetyl-alpha-D-neuraminate (PNP-NeuAc) as substrate. Isoscutellarein-8-O-glucuronide from the leaf of Scutellaria baicalensis showed most potent activity (IC50, 40 microM), and
In vivo anti-influenza virus activity of plant flavonoids possessing inhibitory activity for influenza virus sialidase.
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Isoscutellarein (5,7,8,4'-tetrahydroxyflavone) from the leaf of Scutellaria baicalensis non-competitively inhibited (IC50, 20 microM) the hydrolysis of sodium p-nitrophenyl-N-acetyl-alpha-D-neuraminate by influenza virus sialidase with an apparent Ki value of 41 microM. Negligible inhibitory
Antiviral activity of plant flavonoid, 5,7,4'-trihydroxy-8-methoxyflavone, from the roots of Scutellaria baicalensis against influenza A (H3N2) and B viruses.
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We investigated effects of isoscutellarein-8-methylether (5,7,4'-trihydroxy-8-methoxyflavone, F36) from the roots of Scutellaria baicalensis on the single-cycle replication of mouse-adapted influenza viruses A/Guizhou/54/89 (H3N2 subtype) and B/Ibaraki/2/85 in Madin-Darby canine kidney (MDCK) cells.
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