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  • Title: Antifilarial activity of ethyl acetate extract of Vitex negundo leaves in vitro.
    Author: Sahare KN, Singh V.
    Journal: Asian Pac J Trop Med; 2013 Sep; 6(9):689-92. PubMed ID: 23827144.
    Abstract:
    OBJECTIVE: To evaluate the possible antifilarial effect of ethyl acetate extract of Vitex negundo (Verbenaceae) leaves against Setaria cervi filarial parasite in vitro. METHODS: In vitro screening was done by the method of motility inhibition and MTT reduction assay with concentrations of 0.03 to 1.00 mg/mL for 2 to 24 h incubation periods respectively, for possible antifilarial effect by comparing with control. RESULTS: In motility assay, complete inhibition of motility was observed and in MTT reduction assay which gave >50% reduction for concentrations 0.20, 0.50 and 1.00 mg/mL at 10, 6 and 2 h incubation periods respectively in a dose dependent manner (P<0.05). An antifilarial effect imparted by plant extract was found to be a function of their relative concentrations. Inhibitory concentration (IC50) for the plant extract was found to be 0.16 mg/mL. CONCLUSIONS: The present study recorded significant antifilarial effect of Vitex negundo plant extract and contributed toward the development of database for novel drug candidates for lymphatic filariasis.
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