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Inhibitory Effect of Peppermint Extracts and Menthol against Herpes Simplex Virus Infection


Paper Type 
Contributed Paper
Title 
Inhibitory Effect of Peppermint Extracts and Menthol against Herpes Simplex Virus Infection
Author 
Raenu Yucharoen, Pettiman Meepowpan and Yingmanee Tragoolpua
Email 
yingmanee.t@chiangmai.ac.th
Abstract:

Herpes  simplex  virus (HSV) is  pathogenic  to  humans. This  study  demonstrated  anti-herpes  simplex  virus  activity  of  dichloromethane  and  methanol extracts  of  peppermint, and  pure  compound, menthol  on  green  monkey  kidney  cells. The  cells  were  prevented  from  HSV-1  infection  when  the  cells  were  treated before  viral  infection by  the  dichloromethane  and methanol  extracts  of  peppermint  with  therapeutic  indices (TI)  of  1.79  and 1.09, respectively. Dichloromethane  extracts  of peppermint  demonstrated  higher  inhibitory  effects  during  HSV-1 and HSV-2  adsorption  with  TI  of  4.21  and  7.63  while  TI  of  5.41  and  3.15  were  observed  after HSV-1  and  HSV-2  adsorption. HSV-1  and  HSV-2  were  also  inhibitory  menthol  with  TI of  1.79  and  2.12  after  viral  adsorption. HSV-1  and  HSV-2  viral particles  were  directly  inhibited  and viral  yield  was  reduced  when  treatment  with  peppermint  extracts  and  menthol. The  inhibition  of  approximately  40 kDa  HSV  proteins, which  might  involve  HSV  capsid  assembly, was  observed  after  treatment  with  the  dichloromethane  extract. Therefore, peppermint  extracts  and  menthol  showed  anti-HSV  activities  at  various  stages  of  the  viral  multiplication  cycle.

Start & End Page 
97 - 110
Received Date 
2011-07-11
Revised Date 
Accepted Date 
2011-10-19
Full Text 
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Keyword 
peppermint, menthol, herpes simplex virus
Volume 
Vol.39 No.1 (JANUARY 2012)
DOI 
SDGs
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