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Inhibitory effect of aqueous extract of Echinacea purpurea and Nerium oleander on HSV-1 multiplication

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avatar Maliheh Farahani 1 , *

1 Dept. of Microbiology, Islamic Azad University, Qom Branch, Qom, Iran

How to Cite: Farahani M. Inhibitory effect of aqueous extract of Echinacea purpurea and Nerium oleander on HSV-1 multiplication. J Kermanshah Univ Med Sci. 2014;17(11):e74307.
doi: 10.22110/jkums.v17i11.655.

ARTICLE INFORMATION

Journal of Kermanshah University of Medical Sciences: 17 (11); e74307
Published Online: February 27, 2014
Article Type: Research Article
Received: September 11, 2013
Accepted: December 24, 2013
DOI: 10.22110/jkums.v17i11.655
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Abstract

Background: Treatment of HSV-1 infections with the available chemical drugs may have some problems such as drug resistance and virus latency. Therefore, there is a requirement for new antiherpes drugs in today's world. The present study was carried out to analyze the inhibitory effect of Echinacea purpurea and Nerium oleander plants with ethnomedical background on HSV-1 replication.
Methods: Plants were extracted by decoction method to obtain aqueous extract. These extracts were screened for their cytotoxicity against Hep-2 cell line by CPE (cytopathic effect) assay. Antiviral effect of the plant extracts were determined by the virus cytopathic effect inhibition assay.
Results: Nerium oleander extract had the highest toxicity (>0.1 μg/ml) on Hep-2 cells and Echinacea purpurea extract exhibited significant antiherpes effect at nontoxic concentrations used on the cell lines. Findings indicated that Echinacea purpurea extract inhibited HSV-1 multiplication at concentrations >400 μg/ml.
Conclusion: Echinacea purpurea plant had no any effect on cells at nontoxic concentrations and inhibited HSV-1 multiplication at concentrations >400 μg/ml. Further research is needed to find out the anti herpetic mechanism of this plant.

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© 2014, Journal of Kermanshah University of Medical Sciences. This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/) which permits copy and redistribute the material just in noncommercial usages, provided the original work is properly cited.
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