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  • Title: Antiviral activities of medicinal herbs traditionally used in southern mainland China.
    Author: Li Y, Ooi LS, Wang H, But PP, Ooi VE.
    Journal: Phytother Res; 2004 Sep; 18(9):718-22. PubMed ID: 15478204.
    Abstract:
    The aqueous extracts from 21 medicinal herbs traditionally used in southern mainland China were screened for antiviral activities against human herpes simplex virus type 1 (HSV-1) and human respiratory syncytial virus (RSV) using a cytopathic effect (CPE) reduction assay. Three extracts from Agrimonia pilosa, Pithecellobium clypearia and Punica granatum, respectively, showed anti-HSV-1 activity, which was possibly contributed by the polyphenolic compounds in the herbal extracts. Six of the extracts, from Blumea laciniata, Elephantopus scaber, Laggera pterodonta, Mussaenda pubescens, Schefflera octophylla and Scutellaria indica, respectively, exhibited anti-RSV activity with 50% inhibition (IC50) concentrations ranging from 12.5 to 32 microg/mL, and selective indices (SI) ranging from 11.2 to 40. In addition to polyphenolic compounds, other constituents present in these extracts may also contribute to their anti-RSV activity.
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