Silybum marianum ethanolic extract: in vitro effects on protoscolices of Echinococcus granulosus G1 strain with emphasis on other Iranian medicinal plants

Author:

Taghipour Ali,Ghaffarifar Fatemeh,Horton John,Dalimi Abdolhossein,Sharifi Zohreh

Abstract

Abstract Background Cystic echinococcosis (CE), is a parasitic zoonosis caused by Echinococcus granulosus (E. granulosus) larvae in liver and lungs of both humans and animals. Surgical intervention is the mainstay for CE treatment, using scolicidal agents that inactivate live protoscolices. This study evaluated the scolicidal effects of Silybum marianum ethanolic extract and its combination with albendazole in vitro for the first time. Moreover, in a literature review, we investigated the effects of a wide range of Iranian medicinal plants on protoscolices of E. granulosus. Methods S. marianum ethanolic extract was prepared and high-performance liquid chromatography (HPLC) analysis was used to establish the proportions of its component compounds in the extract. Cytotoxicity was evaluated in mouse macrophage cells (J774A.1 cell line) using MTT method. Next, the scolicidal activity of the extract alone and combined with albendazole was tested as triplicate at various concentrations incubated for 5, 10, 20, 30, and 60 min. Finally, protoscolex viability was determined using 0.1% eosin as a vital stain. PCR–RFLP and DNA sequencing techniques were used to characterize the genotype of E. granulosus. Results HPLC analysis showed that S. marianum ethanolic extract contained mostly silydianin (14.41%), isosilybin A (10.50%), and silychristin (10.46%). The greatest scolicidal effects were obtained with the combination of S. marianum with albendazole (79%), S. marianum ethanolic extract alone (77%) and albendazole (69%), at a concentration of 500 μg/ml for 60 min, respectively (P < 0.05). Molecular analysis showed that all the cysts used were G1 genotype. Conclusion The data suggest that S. marianum ethanolic extract is a potential scolicide in vitro; however, further investigations are required to determine its efficacy in vivo.

Funder

tarbiat modares university

Publisher

Springer Science and Business Media LLC

Subject

Infectious Diseases,Public Health, Environmental and Occupational Health

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