Evaluation of the scolicidal activities of eugenol essential oil and its nanoemulsion against protoscoleces of hydatid cysts

<h4>Background</h4> Cystic echinococcosis caused by the cestode Echinococcus granulosus remains a serious helminthic zoonosis affecting humans and animals in many endemic developing countries. Surgical intervention is the best management choice, although it is associated with high recurr...

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Autores principales:	Maria Naged Maurice, Enas Abdelhameed Mahmoud Huseein, Mohamed El-Salahy M. M. Monib, Fahd M. Alsharif, Nader Ibrahim Namazi, Alzahraa Abdelraouf Ahmad
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c0cc3d95b62e444daf1f234fd3adcfa1
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spelling	oai:doaj.org-article:c0cc3d95b62e444daf1f234fd3adcfa12021-11-18T08:14:34ZEvaluation of the scolicidal activities of eugenol essential oil and its nanoemulsion against protoscoleces of hydatid cysts1932-6203https://doaj.org/article/c0cc3d95b62e444daf1f234fd3adcfa12021-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC8584737/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4> Cystic echinococcosis caused by the cestode Echinococcus granulosus remains a serious helminthic zoonosis affecting humans and animals in many endemic developing countries. Surgical intervention is the best management choice, although it is associated with high recurrence rates and serious complications. Also, the commonly used chemotherapeutics exhibited serious side effects. This study aimed to evaluate the protoscolicidal effects of eugenol (Eug) essential oil and its nanoemulsion (Eug-NE) against protoscoleces (PCs) of hydatid cysts in vitro. <h4>Methods</h4> Eug-NE was prepared and characterized. Their cytotoxicity on macrophages was assessed by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. E. granulosus PCs were treated with various concentrations of Eug and Eug-NE at different exposure times. The viability of protoscoleces was evaluated by the eosin exclusion test, and the changes in the morphology of protoscoleces were assessed. Albendazole (ABZ) was used as a positive control. <h4>Results</h4> The cellular cytotoxicity of Eug and Eug-NE on macrophage cells, in minimum and maximum concentrations (0.2 and 1 μl/mL), were nearly negligible ranging from 4.7% to 8.3% and 3.7% to 7.2%, respectively. The results showed highly significant activity of Eug-NE and Eug against hydatid PCs compared to ABZ (P < 0.05). Eug and Eug-NE have similar protoscolicidal effects at all used concentrations. Their highest scolicidal activity (100% mortality rate) was recorded at 1 μl/ml after 30 min incubation (LC50 = 0.298—LC90 = 0.521 and LC50 = 0.309—LC90 = 0.646, respectively). Both formulations showed time- and dose-dependent effects. <h4>Conclusions</h4> This study suggested the potent scolicidal activities of Eug and Eug-NE as promising alternative scolicidal agents. Future studies are recommended to explore the mechanism of action and treatment response in vivo and clinical settings.Maria Naged MauriceEnas Abdelhameed Mahmoud HuseeinMohamed El-Salahy M. M. MonibFahd M. AlsharifNader Ibrahim NamaziAlzahraa Abdelraouf AhmadPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Maria Naged Maurice Enas Abdelhameed Mahmoud Huseein Mohamed El-Salahy M. M. Monib Fahd M. Alsharif Nader Ibrahim Namazi Alzahraa Abdelraouf Ahmad Evaluation of the scolicidal activities of eugenol essential oil and its nanoemulsion against protoscoleces of hydatid cysts
description	<h4>Background</h4> Cystic echinococcosis caused by the cestode Echinococcus granulosus remains a serious helminthic zoonosis affecting humans and animals in many endemic developing countries. Surgical intervention is the best management choice, although it is associated with high recurrence rates and serious complications. Also, the commonly used chemotherapeutics exhibited serious side effects. This study aimed to evaluate the protoscolicidal effects of eugenol (Eug) essential oil and its nanoemulsion (Eug-NE) against protoscoleces (PCs) of hydatid cysts in vitro. <h4>Methods</h4> Eug-NE was prepared and characterized. Their cytotoxicity on macrophages was assessed by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide assay. E. granulosus PCs were treated with various concentrations of Eug and Eug-NE at different exposure times. The viability of protoscoleces was evaluated by the eosin exclusion test, and the changes in the morphology of protoscoleces were assessed. Albendazole (ABZ) was used as a positive control. <h4>Results</h4> The cellular cytotoxicity of Eug and Eug-NE on macrophage cells, in minimum and maximum concentrations (0.2 and 1 μl/mL), were nearly negligible ranging from 4.7% to 8.3% and 3.7% to 7.2%, respectively. The results showed highly significant activity of Eug-NE and Eug against hydatid PCs compared to ABZ (P < 0.05). Eug and Eug-NE have similar protoscolicidal effects at all used concentrations. Their highest scolicidal activity (100% mortality rate) was recorded at 1 μl/ml after 30 min incubation (LC50 = 0.298—LC90 = 0.521 and LC50 = 0.309—LC90 = 0.646, respectively). Both formulations showed time- and dose-dependent effects. <h4>Conclusions</h4> This study suggested the potent scolicidal activities of Eug and Eug-NE as promising alternative scolicidal agents. Future studies are recommended to explore the mechanism of action and treatment response in vivo and clinical settings.
format	article
author	Maria Naged Maurice Enas Abdelhameed Mahmoud Huseein Mohamed El-Salahy M. M. Monib Fahd M. Alsharif Nader Ibrahim Namazi Alzahraa Abdelraouf Ahmad
author_facet	Maria Naged Maurice Enas Abdelhameed Mahmoud Huseein Mohamed El-Salahy M. M. Monib Fahd M. Alsharif Nader Ibrahim Namazi Alzahraa Abdelraouf Ahmad
author_sort	Maria Naged Maurice
title	Evaluation of the scolicidal activities of eugenol essential oil and its nanoemulsion against protoscoleces of hydatid cysts
title_short	Evaluation of the scolicidal activities of eugenol essential oil and its nanoemulsion against protoscoleces of hydatid cysts
title_full	Evaluation of the scolicidal activities of eugenol essential oil and its nanoemulsion against protoscoleces of hydatid cysts
title_fullStr	Evaluation of the scolicidal activities of eugenol essential oil and its nanoemulsion against protoscoleces of hydatid cysts
title_full_unstemmed	Evaluation of the scolicidal activities of eugenol essential oil and its nanoemulsion against protoscoleces of hydatid cysts
title_sort	evaluation of the scolicidal activities of eugenol essential oil and its nanoemulsion against protoscoleces of hydatid cysts
publisher	Public Library of Science (PLoS)
publishDate	2021
url	https://doaj.org/article/c0cc3d95b62e444daf1f234fd3adcfa1
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Evaluation of the scolicidal activities of eugenol essential oil and its nanoemulsion against protoscoleces of hydatid cysts

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