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Journal articles

Inhibition of HSV-2 infection by pure compounds from Thymus capitatus extract in vitro

Abstract : Thymus capitatus represents 1 of the 5 Tunisian species of the genus Thymus, which has long‐standing use for flavouring and preserving several food products. Its constituents have been reported to endow antimicrobial properties, but little is known about their antiviral activities. The aim of this study was to examine the antiviral activity of pure compounds from the most bioactive inhibitory T. capitatus extract in vitro against herpes simplex virus Type 2 (HSV‐2) infection and to identify their mechanism of action. Either the extracts or the essential oil exert inhibitory activity against HSV‐2 infection, with the ethanolic extract showing the lowest EC50 value (2.3 μg/ml). Three pure compounds were then isolated from the ethanolic extract and investigated for their antiviral activity. β‐sitosterol showed the most favourable selectivity index and both cinnamaldehyde and carvacrol exerted moderate antiviral effect. Investigation of the mechanism of action revealed that all three compounds directly inactivated the infectivity of the virus particles. These findings suggest the use of T. capitatus ethanolic extract as source of anti‐HSV‐2 pure compounds and warrant further studies to evaluate their therapeutic potential.
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Contributor : AbdelHakim Ben Hassine Connect in order to contact the contributor
Submitted on : Thursday, December 13, 2018 - 10:29:16 AM
Last modification on : Monday, February 7, 2022 - 4:06:04 PM

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Marwa Mekni Toujani, Massimo Rittà, Andrea Civra, Salvatore Genovese, Francesco Epifano, et al.. Inhibition of HSV-2 infection by pure compounds from Thymus capitatus extract in vitro. Phytotherapy Research, Wiley, 2018, 32 (8), pp.1555-1563. ⟨10.1002/ptr.6084⟩. ⟨pasteur-01953585⟩



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