In vitro anti-viral activity of Centella asiatica L., Curcuma longa L. and Strobilanthes crispus L. against herpes virus

Extracts of three different plant species; Curcuma longa L., Centella asiatica L. and Strobilanthes crispus L. which are used widely in Malaysian traditional medicine are investigated for antiviral activity against alpha-herpesvirus (pseudorabies virus). The methanol extract (ME) and aqueous extract...

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Bibliographic Details
Main Authors: H., Hanisa, Mohd Lila, Mohd Azmi, Mohamed, Suhaila, Somchit, Muhammad Nazrul
Format: Article
Language:English
Published: 2014
Online Access:http://psasir.upm.edu.my/id/eprint/38004/
http://psasir.upm.edu.my/id/eprint/38004/1/In%20vitro%20anti-viral%20activity%20of%20Centella%20asiatica%20L.%2C%20Curcuma%20longa%20L.%20and%20Strobilanthes%20crispus%20L.%20against%20herpes%20virus.pdf
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Summary:Extracts of three different plant species; Curcuma longa L., Centella asiatica L. and Strobilanthes crispus L. which are used widely in Malaysian traditional medicine are investigated for antiviral activity against alpha-herpesvirus (pseudorabies virus). The methanol extract (ME) and aqueous extract (AE) were tested in three cell lines; African Green Monkey Kidney (Vero), Baby Hamster Kidney (BHK) and Rabbit Kidney (RK) cells, at non-cytotoxic concentrations. Assays were developed to determine the characteristics of anti pseudorabies virus (PrV) activities, as anti-viral attachment, anti-prophylactic and /or virucidal. All plant extracts showed marked virucidal ability and considerable prophylactic and anti-viral attachment activities. Plant ME always showed better antiviral activities than plant AE. Curcuma longa L. showed a better virucidal and prophylactic effect (with more than 70% cell viability at 25 μg/ml) for ME and AE. While Centella asiatica L. and Strobilanthes crispus L. were most active as anti-viral attachment agent with percent cell viability up to 60%. It was also found that the anti-viral activities were varies in different cell lines tested. Therefore, the extracts of all three plant species exhibited anti PrV and they could be further investigated for medical purposes.